From: Rafał Miłecki Date: Sun, 30 Jan 2022 22:30:16 +0000 (+0100) Subject: bcm4908: backport BCM4908 pinctrl driver X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=b0145891676faa38f0a5991e3e229aed7b4a9117;p=openwrt%2Fstaging%2Fneocturne.git bcm4908: backport BCM4908 pinctrl driver Signed-off-by: Rafał Miłecki --- diff --git a/target/linux/bcm4908/config-5.10 b/target/linux/bcm4908/config-5.10 index 48a91b3f0b..41253a8400 100644 --- a/target/linux/bcm4908/config-5.10 +++ b/target/linux/bcm4908/config-5.10 @@ -81,6 +81,9 @@ CONFIG_GENERIC_MSI_IRQ=y CONFIG_GENERIC_MSI_IRQ_DOMAIN=y CONFIG_GENERIC_PCI_IOMAP=y CONFIG_GENERIC_PHY=y +CONFIG_GENERIC_PINCONF=y +CONFIG_GENERIC_PINCTRL_GROUPS=y +CONFIG_GENERIC_PINMUX_FUNCTIONS=y CONFIG_GENERIC_SCHED_CLOCK=y CONFIG_GENERIC_SMP_IDLE_THREAD=y CONFIG_GENERIC_STRNCPY_FROM_USER=y @@ -160,6 +163,9 @@ CONFIG_PHYLIB=y CONFIG_PHYLINK=y CONFIG_PHYS_ADDR_T_64BIT=y CONFIG_PHY_BRCM_USB=y +CONFIG_PINCTRL=y +CONFIG_PINCTRL_BCM4908=y +# CONFIG_PINCTRL_SINGLE is not set CONFIG_PM=y CONFIG_PM_CLK=y CONFIG_PM_GENERIC_DOMAINS=y diff --git a/target/linux/bcm4908/config-5.4 b/target/linux/bcm4908/config-5.4 index 37706f61d3..54c2edb29f 100644 --- a/target/linux/bcm4908/config-5.4 +++ b/target/linux/bcm4908/config-5.4 @@ -90,6 +90,9 @@ CONFIG_GENERIC_MSI_IRQ=y CONFIG_GENERIC_MSI_IRQ_DOMAIN=y CONFIG_GENERIC_PCI_IOMAP=y CONFIG_GENERIC_PHY=y +CONFIG_GENERIC_PINCONF=y +CONFIG_GENERIC_PINCTRL_GROUPS=y +CONFIG_GENERIC_PINMUX_FUNCTIONS=y CONFIG_GENERIC_SCHED_CLOCK=y CONFIG_GENERIC_SMP_IDLE_THREAD=y CONFIG_GENERIC_STRNCPY_FROM_USER=y @@ -167,6 +170,9 @@ CONFIG_PHYLIB=y CONFIG_PHYLINK=y CONFIG_PHYS_ADDR_T_64BIT=y CONFIG_PHY_BRCM_USB=y +CONFIG_PINCTRL=y +CONFIG_PINCTRL_BCM4908=y +# CONFIG_PINCTRL_SINGLE is not set CONFIG_PM=y CONFIG_PM_CLK=y CONFIG_PM_GENERIC_DOMAINS=y diff --git a/target/linux/bcm4908/patches-5.10/085-v5.18-0001-dt-bindings-pinctrl-Add-binding-for-BCM4908-pinctrl.patch b/target/linux/bcm4908/patches-5.10/085-v5.18-0001-dt-bindings-pinctrl-Add-binding-for-BCM4908-pinctrl.patch new file mode 100644 index 0000000000..0d2573b902 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/085-v5.18-0001-dt-bindings-pinctrl-Add-binding-for-BCM4908-pinctrl.patch @@ -0,0 +1,111 @@ +From 7b5730f0ff24b0d7d1cb660a482384a807618a46 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= +Date: Mon, 24 Jan 2022 11:22:42 +0100 +Subject: [PATCH] dt-bindings: pinctrl: Add binding for BCM4908 pinctrl +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +It's hardware block that is part of every SoC from BCM4908 family. + +Signed-off-by: Rafał Miłecki +Reviewed-by: Rob Herring +Link: https://lore.kernel.org/r/20220124102243.14912-1-zajec5@gmail.com +Signed-off-by: Linus Walleij +--- + .../pinctrl/brcm,bcm4908-pinctrl.yaml | 72 +++++++++++++++++++ + MAINTAINERS | 7 ++ + 2 files changed, 79 insertions(+) + create mode 100644 Documentation/devicetree/bindings/pinctrl/brcm,bcm4908-pinctrl.yaml + +--- /dev/null ++++ b/Documentation/devicetree/bindings/pinctrl/brcm,bcm4908-pinctrl.yaml +@@ -0,0 +1,72 @@ ++# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause ++%YAML 1.2 ++--- ++$id: http://devicetree.org/schemas/pinctrl/brcm,bcm4908-pinctrl.yaml# ++$schema: http://devicetree.org/meta-schemas/core.yaml# ++ ++title: Broadcom BCM4908 pin controller ++ ++maintainers: ++ - Rafał Miłecki ++ ++description: ++ Binding for pin controller present on BCM4908 family SoCs. ++ ++properties: ++ compatible: ++ const: brcm,bcm4908-pinctrl ++ ++ reg: ++ maxItems: 1 ++ ++patternProperties: ++ '-pins$': ++ type: object ++ $ref: pinmux-node.yaml# ++ ++ properties: ++ function: ++ enum: [ led_0, led_1, led_2, led_3, led_4, led_5, led_6, led_7, led_8, ++ led_9, led_10, led_11, led_12, led_13, led_14, led_15, led_16, ++ led_17, led_18, led_19, led_20, led_21, led_22, led_23, led_24, ++ led_25, led_26, led_27, led_28, led_29, led_30, led_31, ++ hs_uart, i2c, i2s, nand_ctrl, nand_data, emmc_ctrl, usb0_pwr, ++ usb1_pwr ] ++ ++ groups: ++ minItems: 1 ++ maxItems: 2 ++ items: ++ enum: [ led_0_grp_a, led_1_grp_a, led_2_grp_a, led_3_grp_a, ++ led_4_grp_a, led_5_grp_a, led_6_grp_a, led_7_grp_a, ++ led_8_grp_a, led_9_grp_a, led_10_grp_a, led_10_grp_b, ++ led_11_grp_a, led_11_grp_b, led_12_grp_a, led_12_grp_b, ++ led_13_grp_a, led_13_grp_b, led_14_grp_a, led_15_grp_a, ++ led_16_grp_a, led_17_grp_a, led_18_grp_a, led_19_grp_a, ++ led_20_grp_a, led_21_grp_a, led_22_grp_a, led_23_grp_a, ++ led_24_grp_a, led_25_grp_a, led_26_grp_a, led_27_grp_a, ++ led_28_grp_a, led_29_grp_a, led_30_grp_a, led_31_grp_a, ++ led_31_grp_b, hs_uart_grp, i2c_grp_a, i2c_grp_b, i2s_grp, ++ nand_ctrl_grp, nand_data_grp, emmc_ctrl_grp, usb0_pwr_grp, ++ usb1_pwr_grp ] ++ ++allOf: ++ - $ref: pinctrl.yaml# ++ ++required: ++ - compatible ++ - reg ++ ++unevaluatedProperties: false ++ ++examples: ++ - | ++ pinctrl@ff800560 { ++ compatible = "brcm,bcm4908-pinctrl"; ++ reg = <0xff800560 0x10>; ++ ++ led_0-a-pins { ++ function = "led_0"; ++ groups = "led_0_grp_a"; ++ }; ++ }; +--- a/MAINTAINERS ++++ b/MAINTAINERS +@@ -3688,6 +3688,13 @@ F: Documentation/devicetree/bindings/net/brcm,bcm4908-enet.yaml + F: drivers/net/ethernet/broadcom/bcm4908_enet.* + F: drivers/net/ethernet/broadcom/unimac.h + ++BROADCOM BCM4908 PINMUX DRIVER ++M: Rafał Miłecki ++M: bcm-kernel-feedback-list@broadcom.com ++L: linux-gpio@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/pinctrl/brcm,bcm4908-pinctrl.yaml ++ + BROADCOM BCM5301X ARM ARCHITECTURE + M: Florian Fainelli + M: Hauke Mehrtens diff --git a/target/linux/bcm4908/patches-5.10/085-v5.18-0002-pinctrl-bcm-add-driver-for-BCM4908-pinmux.patch b/target/linux/bcm4908/patches-5.10/085-v5.18-0002-pinctrl-bcm-add-driver-for-BCM4908-pinmux.patch new file mode 100644 index 0000000000..bb2ae459e9 --- /dev/null +++ b/target/linux/bcm4908/patches-5.10/085-v5.18-0002-pinctrl-bcm-add-driver-for-BCM4908-pinmux.patch @@ -0,0 +1,629 @@ +From f7e322d99f1180270fb4a3e1ae992b3116cfcf34 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= +Date: Mon, 24 Jan 2022 11:22:43 +0100 +Subject: [PATCH] pinctrl: bcm: add driver for BCM4908 pinmux +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +BCM4908 has its own pins layout so it needs a custom binding and a Linux +driver. + +Signed-off-by: Rafał Miłecki +Reviewed-by: Andy Shevchenko +Link: https://lore.kernel.org/r/20220124102243.14912-2-zajec5@gmail.com +Signed-off-by: Linus Walleij +--- + MAINTAINERS | 1 + + drivers/pinctrl/bcm/Kconfig | 14 + + drivers/pinctrl/bcm/Makefile | 1 + + drivers/pinctrl/bcm/pinctrl-bcm4908.c | 563 ++++++++++++++++++++++++++ + 4 files changed, 579 insertions(+) + create mode 100644 drivers/pinctrl/bcm/pinctrl-bcm4908.c + +--- a/MAINTAINERS ++++ b/MAINTAINERS +@@ -3442,6 +3442,7 @@ M: bcm-kernel-feedback-list@broadcom.com + L: linux-gpio@vger.kernel.org + S: Maintained + F: Documentation/devicetree/bindings/pinctrl/brcm,bcm4908-pinctrl.yaml ++F: drivers/pinctrl/bcm/pinctrl-bcm4908.c + + BROADCOM BCM5301X ARM ARCHITECTURE + M: Hauke Mehrtens +--- a/drivers/pinctrl/bcm/Kconfig ++++ b/drivers/pinctrl/bcm/Kconfig +@@ -29,6 +29,20 @@ config PINCTRL_BCM2835 + help + Say Y here to enable the Broadcom BCM2835 GPIO driver. + ++config PINCTRL_BCM4908 ++ tristate "Broadcom BCM4908 pinmux driver" ++ depends on OF && (ARCH_BCM4908 || COMPILE_TEST) ++ select PINMUX ++ select PINCONF ++ select GENERIC_PINCONF ++ select GENERIC_PINCTRL_GROUPS ++ select GENERIC_PINMUX_FUNCTIONS ++ default ARCH_BCM4908 ++ help ++ Driver for BCM4908 family SoCs with integrated pin controller. ++ ++ If compiled as module it will be called pinctrl-bcm4908. ++ + config PINCTRL_IPROC_GPIO + bool "Broadcom iProc GPIO (with PINCONF) driver" + depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST) +--- a/drivers/pinctrl/bcm/Makefile ++++ b/drivers/pinctrl/bcm/Makefile +@@ -3,6 +3,7 @@ + + obj-$(CONFIG_PINCTRL_BCM281XX) += pinctrl-bcm281xx.o + obj-$(CONFIG_PINCTRL_BCM2835) += pinctrl-bcm2835.o ++obj-$(CONFIG_PINCTRL_BCM4908) += pinctrl-bcm4908.o + obj-$(CONFIG_PINCTRL_IPROC_GPIO) += pinctrl-iproc-gpio.o + obj-$(CONFIG_PINCTRL_CYGNUS_MUX) += pinctrl-cygnus-mux.o + obj-$(CONFIG_PINCTRL_NS) += pinctrl-ns.o +--- /dev/null ++++ b/drivers/pinctrl/bcm/pinctrl-bcm4908.c +@@ -0,0 +1,560 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* Copyright (C) 2021 Rafał Miłecki */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include "../core.h" ++#include "../pinmux.h" ++ ++#define BCM4908_NUM_PINS 86 ++ ++#define BCM4908_TEST_PORT_BLOCK_EN_LSB 0x00 ++#define BCM4908_TEST_PORT_BLOCK_DATA_MSB 0x04 ++#define BCM4908_TEST_PORT_BLOCK_DATA_LSB 0x08 ++#define BCM4908_TEST_PORT_LSB_PINMUX_DATA_SHIFT 12 ++#define BCM4908_TEST_PORT_COMMAND 0x0c ++#define BCM4908_TEST_PORT_CMD_LOAD_MUX_REG 0x00000021 ++ ++struct bcm4908_pinctrl { ++ struct device *dev; ++ void __iomem *base; ++ struct mutex mutex; ++ struct pinctrl_dev *pctldev; ++ struct pinctrl_desc pctldesc; ++}; ++ ++/* ++ * Groups ++ */ ++ ++struct bcm4908_pinctrl_pin_setup { ++ unsigned int number; ++ unsigned int function; ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_0_pins_a[] = { ++ { 0, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_1_pins_a[] = { ++ { 1, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_2_pins_a[] = { ++ { 2, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_3_pins_a[] = { ++ { 3, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_4_pins_a[] = { ++ { 4, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_5_pins_a[] = { ++ { 5, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_6_pins_a[] = { ++ { 6, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_7_pins_a[] = { ++ { 7, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_8_pins_a[] = { ++ { 8, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_9_pins_a[] = { ++ { 9, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_10_pins_a[] = { ++ { 10, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_11_pins_a[] = { ++ { 11, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_12_pins_a[] = { ++ { 12, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_13_pins_a[] = { ++ { 13, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_14_pins_a[] = { ++ { 14, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_15_pins_a[] = { ++ { 15, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_16_pins_a[] = { ++ { 16, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_17_pins_a[] = { ++ { 17, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_18_pins_a[] = { ++ { 18, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_19_pins_a[] = { ++ { 19, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_20_pins_a[] = { ++ { 20, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_21_pins_a[] = { ++ { 21, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_22_pins_a[] = { ++ { 22, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_23_pins_a[] = { ++ { 23, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_24_pins_a[] = { ++ { 24, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_25_pins_a[] = { ++ { 25, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_26_pins_a[] = { ++ { 26, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_27_pins_a[] = { ++ { 27, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_28_pins_a[] = { ++ { 28, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_29_pins_a[] = { ++ { 29, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_30_pins_a[] = { ++ { 30, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_31_pins_a[] = { ++ { 31, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_10_pins_b[] = { ++ { 8, 2 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_11_pins_b[] = { ++ { 9, 2 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_12_pins_b[] = { ++ { 0, 2 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_13_pins_b[] = { ++ { 1, 2 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_31_pins_b[] = { ++ { 30, 2 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup hs_uart_pins[] = { ++ { 10, 0 }, /* CTS */ ++ { 11, 0 }, /* RTS */ ++ { 12, 0 }, /* RXD */ ++ { 13, 0 }, /* TXD */ ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup i2c_pins_a[] = { ++ { 18, 0 }, /* SDA */ ++ { 19, 0 }, /* SCL */ ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup i2c_pins_b[] = { ++ { 22, 0 }, /* SDA */ ++ { 23, 0 }, /* SCL */ ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup i2s_pins[] = { ++ { 27, 0 }, /* MCLK */ ++ { 28, 0 }, /* LRCK */ ++ { 29, 0 }, /* SDATA */ ++ { 30, 0 }, /* SCLK */ ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup nand_ctrl_pins[] = { ++ { 32, 0 }, ++ { 33, 0 }, ++ { 34, 0 }, ++ { 43, 0 }, ++ { 44, 0 }, ++ { 45, 0 }, ++ { 56, 1 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup nand_data_pins[] = { ++ { 35, 0 }, ++ { 36, 0 }, ++ { 37, 0 }, ++ { 38, 0 }, ++ { 39, 0 }, ++ { 40, 0 }, ++ { 41, 0 }, ++ { 42, 0 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup emmc_ctrl_pins[] = { ++ { 46, 0 }, ++ { 47, 0 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup usb0_pwr_pins[] = { ++ { 63, 0 }, ++ { 64, 0 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup usb1_pwr_pins[] = { ++ { 66, 0 }, ++ { 67, 0 }, ++}; ++ ++struct bcm4908_pinctrl_grp { ++ const char *name; ++ const struct bcm4908_pinctrl_pin_setup *pins; ++ const unsigned int num_pins; ++}; ++ ++static const struct bcm4908_pinctrl_grp bcm4908_pinctrl_grps[] = { ++ { "led_0_grp_a", led_0_pins_a, ARRAY_SIZE(led_0_pins_a) }, ++ { "led_1_grp_a", led_1_pins_a, ARRAY_SIZE(led_1_pins_a) }, ++ { "led_2_grp_a", led_2_pins_a, ARRAY_SIZE(led_2_pins_a) }, ++ { "led_3_grp_a", led_3_pins_a, ARRAY_SIZE(led_3_pins_a) }, ++ { "led_4_grp_a", led_4_pins_a, ARRAY_SIZE(led_4_pins_a) }, ++ { "led_5_grp_a", led_5_pins_a, ARRAY_SIZE(led_5_pins_a) }, ++ { "led_6_grp_a", led_6_pins_a, ARRAY_SIZE(led_6_pins_a) }, ++ { "led_7_grp_a", led_7_pins_a, ARRAY_SIZE(led_7_pins_a) }, ++ { "led_8_grp_a", led_8_pins_a, ARRAY_SIZE(led_8_pins_a) }, ++ { "led_9_grp_a", led_9_pins_a, ARRAY_SIZE(led_9_pins_a) }, ++ { "led_10_grp_a", led_10_pins_a, ARRAY_SIZE(led_10_pins_a) }, ++ { "led_11_grp_a", led_11_pins_a, ARRAY_SIZE(led_11_pins_a) }, ++ { "led_12_grp_a", led_12_pins_a, ARRAY_SIZE(led_12_pins_a) }, ++ { "led_13_grp_a", led_13_pins_a, ARRAY_SIZE(led_13_pins_a) }, ++ { "led_14_grp_a", led_14_pins_a, ARRAY_SIZE(led_14_pins_a) }, ++ { "led_15_grp_a", led_15_pins_a, ARRAY_SIZE(led_15_pins_a) }, ++ { "led_16_grp_a", led_16_pins_a, ARRAY_SIZE(led_16_pins_a) }, ++ { "led_17_grp_a", led_17_pins_a, ARRAY_SIZE(led_17_pins_a) }, ++ { "led_18_grp_a", led_18_pins_a, ARRAY_SIZE(led_18_pins_a) }, ++ { "led_19_grp_a", led_19_pins_a, ARRAY_SIZE(led_19_pins_a) }, ++ { "led_20_grp_a", led_20_pins_a, ARRAY_SIZE(led_20_pins_a) }, ++ { "led_21_grp_a", led_21_pins_a, ARRAY_SIZE(led_21_pins_a) }, ++ { "led_22_grp_a", led_22_pins_a, ARRAY_SIZE(led_22_pins_a) }, ++ { "led_23_grp_a", led_23_pins_a, ARRAY_SIZE(led_23_pins_a) }, ++ { "led_24_grp_a", led_24_pins_a, ARRAY_SIZE(led_24_pins_a) }, ++ { "led_25_grp_a", led_25_pins_a, ARRAY_SIZE(led_25_pins_a) }, ++ { "led_26_grp_a", led_26_pins_a, ARRAY_SIZE(led_26_pins_a) }, ++ { "led_27_grp_a", led_27_pins_a, ARRAY_SIZE(led_27_pins_a) }, ++ { "led_28_grp_a", led_28_pins_a, ARRAY_SIZE(led_28_pins_a) }, ++ { "led_29_grp_a", led_29_pins_a, ARRAY_SIZE(led_29_pins_a) }, ++ { "led_30_grp_a", led_30_pins_a, ARRAY_SIZE(led_30_pins_a) }, ++ { "led_31_grp_a", led_31_pins_a, ARRAY_SIZE(led_31_pins_a) }, ++ { "led_10_grp_b", led_10_pins_b, ARRAY_SIZE(led_10_pins_b) }, ++ { "led_11_grp_b", led_11_pins_b, ARRAY_SIZE(led_11_pins_b) }, ++ { "led_12_grp_b", led_12_pins_b, ARRAY_SIZE(led_12_pins_b) }, ++ { "led_13_grp_b", led_13_pins_b, ARRAY_SIZE(led_13_pins_b) }, ++ { "led_31_grp_b", led_31_pins_b, ARRAY_SIZE(led_31_pins_b) }, ++ { "hs_uart_grp", hs_uart_pins, ARRAY_SIZE(hs_uart_pins) }, ++ { "i2c_grp_a", i2c_pins_a, ARRAY_SIZE(i2c_pins_a) }, ++ { "i2c_grp_b", i2c_pins_b, ARRAY_SIZE(i2c_pins_b) }, ++ { "i2s_grp", i2s_pins, ARRAY_SIZE(i2s_pins) }, ++ { "nand_ctrl_grp", nand_ctrl_pins, ARRAY_SIZE(nand_ctrl_pins) }, ++ { "nand_data_grp", nand_data_pins, ARRAY_SIZE(nand_data_pins) }, ++ { "emmc_ctrl_grp", emmc_ctrl_pins, ARRAY_SIZE(emmc_ctrl_pins) }, ++ { "usb0_pwr_grp", usb0_pwr_pins, ARRAY_SIZE(usb0_pwr_pins) }, ++ { "usb1_pwr_grp", usb1_pwr_pins, ARRAY_SIZE(usb1_pwr_pins) }, ++}; ++ ++/* ++ * Functions ++ */ ++ ++struct bcm4908_pinctrl_function { ++ const char *name; ++ const char * const *groups; ++ const unsigned int num_groups; ++}; ++ ++static const char * const led_0_groups[] = { "led_0_grp_a" }; ++static const char * const led_1_groups[] = { "led_1_grp_a" }; ++static const char * const led_2_groups[] = { "led_2_grp_a" }; ++static const char * const led_3_groups[] = { "led_3_grp_a" }; ++static const char * const led_4_groups[] = { "led_4_grp_a" }; ++static const char * const led_5_groups[] = { "led_5_grp_a" }; ++static const char * const led_6_groups[] = { "led_6_grp_a" }; ++static const char * const led_7_groups[] = { "led_7_grp_a" }; ++static const char * const led_8_groups[] = { "led_8_grp_a" }; ++static const char * const led_9_groups[] = { "led_9_grp_a" }; ++static const char * const led_10_groups[] = { "led_10_grp_a", "led_10_grp_b" }; ++static const char * const led_11_groups[] = { "led_11_grp_a", "led_11_grp_b" }; ++static const char * const led_12_groups[] = { "led_12_grp_a", "led_12_grp_b" }; ++static const char * const led_13_groups[] = { "led_13_grp_a", "led_13_grp_b" }; ++static const char * const led_14_groups[] = { "led_14_grp_a" }; ++static const char * const led_15_groups[] = { "led_15_grp_a" }; ++static const char * const led_16_groups[] = { "led_16_grp_a" }; ++static const char * const led_17_groups[] = { "led_17_grp_a" }; ++static const char * const led_18_groups[] = { "led_18_grp_a" }; ++static const char * const led_19_groups[] = { "led_19_grp_a" }; ++static const char * const led_20_groups[] = { "led_20_grp_a" }; ++static const char * const led_21_groups[] = { "led_21_grp_a" }; ++static const char * const led_22_groups[] = { "led_22_grp_a" }; ++static const char * const led_23_groups[] = { "led_23_grp_a" }; ++static const char * const led_24_groups[] = { "led_24_grp_a" }; ++static const char * const led_25_groups[] = { "led_25_grp_a" }; ++static const char * const led_26_groups[] = { "led_26_grp_a" }; ++static const char * const led_27_groups[] = { "led_27_grp_a" }; ++static const char * const led_28_groups[] = { "led_28_grp_a" }; ++static const char * const led_29_groups[] = { "led_29_grp_a" }; ++static const char * const led_30_groups[] = { "led_30_grp_a" }; ++static const char * const led_31_groups[] = { "led_31_grp_a", "led_31_grp_b" }; ++static const char * const hs_uart_groups[] = { "hs_uart_grp" }; ++static const char * const i2c_groups[] = { "i2c_grp_a", "i2c_grp_b" }; ++static const char * const i2s_groups[] = { "i2s_grp" }; ++static const char * const nand_ctrl_groups[] = { "nand_ctrl_grp" }; ++static const char * const nand_data_groups[] = { "nand_data_grp" }; ++static const char * const emmc_ctrl_groups[] = { "emmc_ctrl_grp" }; ++static const char * const usb0_pwr_groups[] = { "usb0_pwr_grp" }; ++static const char * const usb1_pwr_groups[] = { "usb1_pwr_grp" }; ++ ++static const struct bcm4908_pinctrl_function bcm4908_pinctrl_functions[] = { ++ { "led_0", led_0_groups, ARRAY_SIZE(led_0_groups) }, ++ { "led_1", led_1_groups, ARRAY_SIZE(led_1_groups) }, ++ { "led_2", led_2_groups, ARRAY_SIZE(led_2_groups) }, ++ { "led_3", led_3_groups, ARRAY_SIZE(led_3_groups) }, ++ { "led_4", led_4_groups, ARRAY_SIZE(led_4_groups) }, ++ { "led_5", led_5_groups, ARRAY_SIZE(led_5_groups) }, ++ { "led_6", led_6_groups, ARRAY_SIZE(led_6_groups) }, ++ { "led_7", led_7_groups, ARRAY_SIZE(led_7_groups) }, ++ { "led_8", led_8_groups, ARRAY_SIZE(led_8_groups) }, ++ { "led_9", led_9_groups, ARRAY_SIZE(led_9_groups) }, ++ { "led_10", led_10_groups, ARRAY_SIZE(led_10_groups) }, ++ { "led_11", led_11_groups, ARRAY_SIZE(led_11_groups) }, ++ { "led_12", led_12_groups, ARRAY_SIZE(led_12_groups) }, ++ { "led_13", led_13_groups, ARRAY_SIZE(led_13_groups) }, ++ { "led_14", led_14_groups, ARRAY_SIZE(led_14_groups) }, ++ { "led_15", led_15_groups, ARRAY_SIZE(led_15_groups) }, ++ { "led_16", led_16_groups, ARRAY_SIZE(led_16_groups) }, ++ { "led_17", led_17_groups, ARRAY_SIZE(led_17_groups) }, ++ { "led_18", led_18_groups, ARRAY_SIZE(led_18_groups) }, ++ { "led_19", led_19_groups, ARRAY_SIZE(led_19_groups) }, ++ { "led_20", led_20_groups, ARRAY_SIZE(led_20_groups) }, ++ { "led_21", led_21_groups, ARRAY_SIZE(led_21_groups) }, ++ { "led_22", led_22_groups, ARRAY_SIZE(led_22_groups) }, ++ { "led_23", led_23_groups, ARRAY_SIZE(led_23_groups) }, ++ { "led_24", led_24_groups, ARRAY_SIZE(led_24_groups) }, ++ { "led_25", led_25_groups, ARRAY_SIZE(led_25_groups) }, ++ { "led_26", led_26_groups, ARRAY_SIZE(led_26_groups) }, ++ { "led_27", led_27_groups, ARRAY_SIZE(led_27_groups) }, ++ { "led_28", led_28_groups, ARRAY_SIZE(led_28_groups) }, ++ { "led_29", led_29_groups, ARRAY_SIZE(led_29_groups) }, ++ { "led_30", led_30_groups, ARRAY_SIZE(led_30_groups) }, ++ { "led_31", led_31_groups, ARRAY_SIZE(led_31_groups) }, ++ { "hs_uart", hs_uart_groups, ARRAY_SIZE(hs_uart_groups) }, ++ { "i2c", i2c_groups, ARRAY_SIZE(i2c_groups) }, ++ { "i2s", i2s_groups, ARRAY_SIZE(i2s_groups) }, ++ { "nand_ctrl", nand_ctrl_groups, ARRAY_SIZE(nand_ctrl_groups) }, ++ { "nand_data", nand_data_groups, ARRAY_SIZE(nand_data_groups) }, ++ { "emmc_ctrl", emmc_ctrl_groups, ARRAY_SIZE(emmc_ctrl_groups) }, ++ { "usb0_pwr", usb0_pwr_groups, ARRAY_SIZE(usb0_pwr_groups) }, ++ { "usb1_pwr", usb1_pwr_groups, ARRAY_SIZE(usb1_pwr_groups) }, ++}; ++ ++/* ++ * Groups code ++ */ ++ ++static const struct pinctrl_ops bcm4908_pinctrl_ops = { ++ .get_groups_count = pinctrl_generic_get_group_count, ++ .get_group_name = pinctrl_generic_get_group_name, ++ .get_group_pins = pinctrl_generic_get_group_pins, ++ .dt_node_to_map = pinconf_generic_dt_node_to_map_group, ++ .dt_free_map = pinconf_generic_dt_free_map, ++}; ++ ++/* ++ * Functions code ++ */ ++ ++static int bcm4908_pinctrl_set_mux(struct pinctrl_dev *pctrl_dev, ++ unsigned int func_selector, ++ unsigned int group_selector) ++{ ++ struct bcm4908_pinctrl *bcm4908_pinctrl = pinctrl_dev_get_drvdata(pctrl_dev); ++ const struct bcm4908_pinctrl_grp *group; ++ struct group_desc *group_desc; ++ int i; ++ ++ group_desc = pinctrl_generic_get_group(pctrl_dev, group_selector); ++ if (!group_desc) ++ return -EINVAL; ++ group = group_desc->data; ++ ++ mutex_lock(&bcm4908_pinctrl->mutex); ++ for (i = 0; i < group->num_pins; i++) { ++ u32 lsb = 0; ++ ++ lsb |= group->pins[i].number; ++ lsb |= group->pins[i].function << BCM4908_TEST_PORT_LSB_PINMUX_DATA_SHIFT; ++ ++ writel(0x0, bcm4908_pinctrl->base + BCM4908_TEST_PORT_BLOCK_DATA_MSB); ++ writel(lsb, bcm4908_pinctrl->base + BCM4908_TEST_PORT_BLOCK_DATA_LSB); ++ writel(BCM4908_TEST_PORT_CMD_LOAD_MUX_REG, ++ bcm4908_pinctrl->base + BCM4908_TEST_PORT_COMMAND); ++ } ++ mutex_unlock(&bcm4908_pinctrl->mutex); ++ ++ return 0; ++} ++ ++static const struct pinmux_ops bcm4908_pinctrl_pmxops = { ++ .get_functions_count = pinmux_generic_get_function_count, ++ .get_function_name = pinmux_generic_get_function_name, ++ .get_function_groups = pinmux_generic_get_function_groups, ++ .set_mux = bcm4908_pinctrl_set_mux, ++}; ++ ++/* ++ * Controller code ++ */ ++ ++static struct pinctrl_desc bcm4908_pinctrl_desc = { ++ .name = "bcm4908-pinctrl", ++ .pctlops = &bcm4908_pinctrl_ops, ++ .pmxops = &bcm4908_pinctrl_pmxops, ++}; ++ ++static const struct of_device_id bcm4908_pinctrl_of_match_table[] = { ++ { .compatible = "brcm,bcm4908-pinctrl", }, ++ { } ++}; ++ ++static int bcm4908_pinctrl_probe(struct platform_device *pdev) ++{ ++ struct device *dev = &pdev->dev; ++ struct bcm4908_pinctrl *bcm4908_pinctrl; ++ struct pinctrl_desc *pctldesc; ++ struct pinctrl_pin_desc *pins; ++ int i; ++ ++ bcm4908_pinctrl = devm_kzalloc(dev, sizeof(*bcm4908_pinctrl), GFP_KERNEL); ++ if (!bcm4908_pinctrl) ++ return -ENOMEM; ++ pctldesc = &bcm4908_pinctrl->pctldesc; ++ platform_set_drvdata(pdev, bcm4908_pinctrl); ++ ++ /* Set basic properties */ ++ ++ bcm4908_pinctrl->dev = dev; ++ ++ bcm4908_pinctrl->base = devm_platform_ioremap_resource(pdev, 0); ++ if (IS_ERR(bcm4908_pinctrl->base)) ++ return PTR_ERR(bcm4908_pinctrl->base); ++ ++ mutex_init(&bcm4908_pinctrl->mutex); ++ ++ memcpy(pctldesc, &bcm4908_pinctrl_desc, sizeof(*pctldesc)); ++ ++ /* Set pinctrl properties */ ++ ++ pins = devm_kcalloc(dev, BCM4908_NUM_PINS, sizeof(*pins), GFP_KERNEL); ++ if (!pins) ++ return -ENOMEM; ++ for (i = 0; i < BCM4908_NUM_PINS; i++) { ++ pins[i].number = i; ++ pins[i].name = devm_kasprintf(dev, GFP_KERNEL, "pin-%d", i); ++ if (!pins[i].name) ++ return -ENOMEM; ++ } ++ pctldesc->pins = pins; ++ pctldesc->npins = BCM4908_NUM_PINS; ++ ++ /* Register */ ++ ++ bcm4908_pinctrl->pctldev = devm_pinctrl_register(dev, pctldesc, bcm4908_pinctrl); ++ if (IS_ERR(bcm4908_pinctrl->pctldev)) ++ return dev_err_probe(dev, PTR_ERR(bcm4908_pinctrl->pctldev), ++ "Failed to register pinctrl\n"); ++ ++ /* Groups */ ++ ++ for (i = 0; i < ARRAY_SIZE(bcm4908_pinctrl_grps); i++) { ++ const struct bcm4908_pinctrl_grp *group = &bcm4908_pinctrl_grps[i]; ++ int *pins; ++ int j; ++ ++ pins = devm_kcalloc(dev, group->num_pins, sizeof(*pins), GFP_KERNEL); ++ if (!pins) ++ return -ENOMEM; ++ for (j = 0; j < group->num_pins; j++) ++ pins[j] = group->pins[j].number; ++ ++ pinctrl_generic_add_group(bcm4908_pinctrl->pctldev, group->name, ++ pins, group->num_pins, (void *)group); ++ } ++ ++ /* Functions */ ++ ++ for (i = 0; i < ARRAY_SIZE(bcm4908_pinctrl_functions); i++) { ++ const struct bcm4908_pinctrl_function *function = &bcm4908_pinctrl_functions[i]; ++ ++ pinmux_generic_add_function(bcm4908_pinctrl->pctldev, ++ function->name, ++ function->groups, ++ function->num_groups, NULL); ++ } ++ ++ return 0; ++} ++ ++static struct platform_driver bcm4908_pinctrl_driver = { ++ .probe = bcm4908_pinctrl_probe, ++ .driver = { ++ .name = "bcm4908-pinctrl", ++ .of_match_table = bcm4908_pinctrl_of_match_table, ++ }, ++}; ++ ++module_platform_driver(bcm4908_pinctrl_driver); ++ ++MODULE_AUTHOR("Rafał Miłecki"); ++MODULE_LICENSE("GPL v2"); ++MODULE_DEVICE_TABLE(of, bcm4908_pinctrl_of_match_table); diff --git a/target/linux/bcm4908/patches-5.4/087-v5.18-0001-dt-bindings-pinctrl-Add-binding-for-BCM4908-pinctrl.patch b/target/linux/bcm4908/patches-5.4/087-v5.18-0001-dt-bindings-pinctrl-Add-binding-for-BCM4908-pinctrl.patch new file mode 100644 index 0000000000..0d2573b902 --- /dev/null +++ b/target/linux/bcm4908/patches-5.4/087-v5.18-0001-dt-bindings-pinctrl-Add-binding-for-BCM4908-pinctrl.patch @@ -0,0 +1,111 @@ +From 7b5730f0ff24b0d7d1cb660a482384a807618a46 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= +Date: Mon, 24 Jan 2022 11:22:42 +0100 +Subject: [PATCH] dt-bindings: pinctrl: Add binding for BCM4908 pinctrl +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +It's hardware block that is part of every SoC from BCM4908 family. + +Signed-off-by: Rafał Miłecki +Reviewed-by: Rob Herring +Link: https://lore.kernel.org/r/20220124102243.14912-1-zajec5@gmail.com +Signed-off-by: Linus Walleij +--- + .../pinctrl/brcm,bcm4908-pinctrl.yaml | 72 +++++++++++++++++++ + MAINTAINERS | 7 ++ + 2 files changed, 79 insertions(+) + create mode 100644 Documentation/devicetree/bindings/pinctrl/brcm,bcm4908-pinctrl.yaml + +--- /dev/null ++++ b/Documentation/devicetree/bindings/pinctrl/brcm,bcm4908-pinctrl.yaml +@@ -0,0 +1,72 @@ ++# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause ++%YAML 1.2 ++--- ++$id: http://devicetree.org/schemas/pinctrl/brcm,bcm4908-pinctrl.yaml# ++$schema: http://devicetree.org/meta-schemas/core.yaml# ++ ++title: Broadcom BCM4908 pin controller ++ ++maintainers: ++ - Rafał Miłecki ++ ++description: ++ Binding for pin controller present on BCM4908 family SoCs. ++ ++properties: ++ compatible: ++ const: brcm,bcm4908-pinctrl ++ ++ reg: ++ maxItems: 1 ++ ++patternProperties: ++ '-pins$': ++ type: object ++ $ref: pinmux-node.yaml# ++ ++ properties: ++ function: ++ enum: [ led_0, led_1, led_2, led_3, led_4, led_5, led_6, led_7, led_8, ++ led_9, led_10, led_11, led_12, led_13, led_14, led_15, led_16, ++ led_17, led_18, led_19, led_20, led_21, led_22, led_23, led_24, ++ led_25, led_26, led_27, led_28, led_29, led_30, led_31, ++ hs_uart, i2c, i2s, nand_ctrl, nand_data, emmc_ctrl, usb0_pwr, ++ usb1_pwr ] ++ ++ groups: ++ minItems: 1 ++ maxItems: 2 ++ items: ++ enum: [ led_0_grp_a, led_1_grp_a, led_2_grp_a, led_3_grp_a, ++ led_4_grp_a, led_5_grp_a, led_6_grp_a, led_7_grp_a, ++ led_8_grp_a, led_9_grp_a, led_10_grp_a, led_10_grp_b, ++ led_11_grp_a, led_11_grp_b, led_12_grp_a, led_12_grp_b, ++ led_13_grp_a, led_13_grp_b, led_14_grp_a, led_15_grp_a, ++ led_16_grp_a, led_17_grp_a, led_18_grp_a, led_19_grp_a, ++ led_20_grp_a, led_21_grp_a, led_22_grp_a, led_23_grp_a, ++ led_24_grp_a, led_25_grp_a, led_26_grp_a, led_27_grp_a, ++ led_28_grp_a, led_29_grp_a, led_30_grp_a, led_31_grp_a, ++ led_31_grp_b, hs_uart_grp, i2c_grp_a, i2c_grp_b, i2s_grp, ++ nand_ctrl_grp, nand_data_grp, emmc_ctrl_grp, usb0_pwr_grp, ++ usb1_pwr_grp ] ++ ++allOf: ++ - $ref: pinctrl.yaml# ++ ++required: ++ - compatible ++ - reg ++ ++unevaluatedProperties: false ++ ++examples: ++ - | ++ pinctrl@ff800560 { ++ compatible = "brcm,bcm4908-pinctrl"; ++ reg = <0xff800560 0x10>; ++ ++ led_0-a-pins { ++ function = "led_0"; ++ groups = "led_0_grp_a"; ++ }; ++ }; +--- a/MAINTAINERS ++++ b/MAINTAINERS +@@ -3688,6 +3688,13 @@ F: Documentation/devicetree/bindings/net/brcm,bcm4908-enet.yaml + F: drivers/net/ethernet/broadcom/bcm4908_enet.* + F: drivers/net/ethernet/broadcom/unimac.h + ++BROADCOM BCM4908 PINMUX DRIVER ++M: Rafał Miłecki ++M: bcm-kernel-feedback-list@broadcom.com ++L: linux-gpio@vger.kernel.org ++S: Maintained ++F: Documentation/devicetree/bindings/pinctrl/brcm,bcm4908-pinctrl.yaml ++ + BROADCOM BCM5301X ARM ARCHITECTURE + M: Florian Fainelli + M: Hauke Mehrtens diff --git a/target/linux/bcm4908/patches-5.4/087-v5.18-0002-pinctrl-bcm-add-driver-for-BCM4908-pinmux.patch b/target/linux/bcm4908/patches-5.4/087-v5.18-0002-pinctrl-bcm-add-driver-for-BCM4908-pinmux.patch new file mode 100644 index 0000000000..bb2ae459e9 --- /dev/null +++ b/target/linux/bcm4908/patches-5.4/087-v5.18-0002-pinctrl-bcm-add-driver-for-BCM4908-pinmux.patch @@ -0,0 +1,629 @@ +From f7e322d99f1180270fb4a3e1ae992b3116cfcf34 Mon Sep 17 00:00:00 2001 +From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= +Date: Mon, 24 Jan 2022 11:22:43 +0100 +Subject: [PATCH] pinctrl: bcm: add driver for BCM4908 pinmux +MIME-Version: 1.0 +Content-Type: text/plain; charset=UTF-8 +Content-Transfer-Encoding: 8bit + +BCM4908 has its own pins layout so it needs a custom binding and a Linux +driver. + +Signed-off-by: Rafał Miłecki +Reviewed-by: Andy Shevchenko +Link: https://lore.kernel.org/r/20220124102243.14912-2-zajec5@gmail.com +Signed-off-by: Linus Walleij +--- + MAINTAINERS | 1 + + drivers/pinctrl/bcm/Kconfig | 14 + + drivers/pinctrl/bcm/Makefile | 1 + + drivers/pinctrl/bcm/pinctrl-bcm4908.c | 563 ++++++++++++++++++++++++++ + 4 files changed, 579 insertions(+) + create mode 100644 drivers/pinctrl/bcm/pinctrl-bcm4908.c + +--- a/MAINTAINERS ++++ b/MAINTAINERS +@@ -3442,6 +3442,7 @@ M: bcm-kernel-feedback-list@broadcom.com + L: linux-gpio@vger.kernel.org + S: Maintained + F: Documentation/devicetree/bindings/pinctrl/brcm,bcm4908-pinctrl.yaml ++F: drivers/pinctrl/bcm/pinctrl-bcm4908.c + + BROADCOM BCM5301X ARM ARCHITECTURE + M: Hauke Mehrtens +--- a/drivers/pinctrl/bcm/Kconfig ++++ b/drivers/pinctrl/bcm/Kconfig +@@ -29,6 +29,20 @@ config PINCTRL_BCM2835 + help + Say Y here to enable the Broadcom BCM2835 GPIO driver. + ++config PINCTRL_BCM4908 ++ tristate "Broadcom BCM4908 pinmux driver" ++ depends on OF && (ARCH_BCM4908 || COMPILE_TEST) ++ select PINMUX ++ select PINCONF ++ select GENERIC_PINCONF ++ select GENERIC_PINCTRL_GROUPS ++ select GENERIC_PINMUX_FUNCTIONS ++ default ARCH_BCM4908 ++ help ++ Driver for BCM4908 family SoCs with integrated pin controller. ++ ++ If compiled as module it will be called pinctrl-bcm4908. ++ + config PINCTRL_IPROC_GPIO + bool "Broadcom iProc GPIO (with PINCONF) driver" + depends on OF_GPIO && (ARCH_BCM_IPROC || COMPILE_TEST) +--- a/drivers/pinctrl/bcm/Makefile ++++ b/drivers/pinctrl/bcm/Makefile +@@ -3,6 +3,7 @@ + + obj-$(CONFIG_PINCTRL_BCM281XX) += pinctrl-bcm281xx.o + obj-$(CONFIG_PINCTRL_BCM2835) += pinctrl-bcm2835.o ++obj-$(CONFIG_PINCTRL_BCM4908) += pinctrl-bcm4908.o + obj-$(CONFIG_PINCTRL_IPROC_GPIO) += pinctrl-iproc-gpio.o + obj-$(CONFIG_PINCTRL_CYGNUS_MUX) += pinctrl-cygnus-mux.o + obj-$(CONFIG_PINCTRL_NS) += pinctrl-ns.o +--- /dev/null ++++ b/drivers/pinctrl/bcm/pinctrl-bcm4908.c +@@ -0,0 +1,560 @@ ++// SPDX-License-Identifier: GPL-2.0 ++/* Copyright (C) 2021 Rafał Miłecki */ ++ ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++#include ++ ++#include "../core.h" ++#include "../pinmux.h" ++ ++#define BCM4908_NUM_PINS 86 ++ ++#define BCM4908_TEST_PORT_BLOCK_EN_LSB 0x00 ++#define BCM4908_TEST_PORT_BLOCK_DATA_MSB 0x04 ++#define BCM4908_TEST_PORT_BLOCK_DATA_LSB 0x08 ++#define BCM4908_TEST_PORT_LSB_PINMUX_DATA_SHIFT 12 ++#define BCM4908_TEST_PORT_COMMAND 0x0c ++#define BCM4908_TEST_PORT_CMD_LOAD_MUX_REG 0x00000021 ++ ++struct bcm4908_pinctrl { ++ struct device *dev; ++ void __iomem *base; ++ struct mutex mutex; ++ struct pinctrl_dev *pctldev; ++ struct pinctrl_desc pctldesc; ++}; ++ ++/* ++ * Groups ++ */ ++ ++struct bcm4908_pinctrl_pin_setup { ++ unsigned int number; ++ unsigned int function; ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_0_pins_a[] = { ++ { 0, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_1_pins_a[] = { ++ { 1, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_2_pins_a[] = { ++ { 2, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_3_pins_a[] = { ++ { 3, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_4_pins_a[] = { ++ { 4, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_5_pins_a[] = { ++ { 5, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_6_pins_a[] = { ++ { 6, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_7_pins_a[] = { ++ { 7, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_8_pins_a[] = { ++ { 8, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_9_pins_a[] = { ++ { 9, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_10_pins_a[] = { ++ { 10, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_11_pins_a[] = { ++ { 11, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_12_pins_a[] = { ++ { 12, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_13_pins_a[] = { ++ { 13, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_14_pins_a[] = { ++ { 14, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_15_pins_a[] = { ++ { 15, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_16_pins_a[] = { ++ { 16, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_17_pins_a[] = { ++ { 17, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_18_pins_a[] = { ++ { 18, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_19_pins_a[] = { ++ { 19, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_20_pins_a[] = { ++ { 20, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_21_pins_a[] = { ++ { 21, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_22_pins_a[] = { ++ { 22, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_23_pins_a[] = { ++ { 23, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_24_pins_a[] = { ++ { 24, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_25_pins_a[] = { ++ { 25, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_26_pins_a[] = { ++ { 26, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_27_pins_a[] = { ++ { 27, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_28_pins_a[] = { ++ { 28, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_29_pins_a[] = { ++ { 29, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_30_pins_a[] = { ++ { 30, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_31_pins_a[] = { ++ { 31, 3 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_10_pins_b[] = { ++ { 8, 2 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_11_pins_b[] = { ++ { 9, 2 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_12_pins_b[] = { ++ { 0, 2 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_13_pins_b[] = { ++ { 1, 2 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup led_31_pins_b[] = { ++ { 30, 2 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup hs_uart_pins[] = { ++ { 10, 0 }, /* CTS */ ++ { 11, 0 }, /* RTS */ ++ { 12, 0 }, /* RXD */ ++ { 13, 0 }, /* TXD */ ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup i2c_pins_a[] = { ++ { 18, 0 }, /* SDA */ ++ { 19, 0 }, /* SCL */ ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup i2c_pins_b[] = { ++ { 22, 0 }, /* SDA */ ++ { 23, 0 }, /* SCL */ ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup i2s_pins[] = { ++ { 27, 0 }, /* MCLK */ ++ { 28, 0 }, /* LRCK */ ++ { 29, 0 }, /* SDATA */ ++ { 30, 0 }, /* SCLK */ ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup nand_ctrl_pins[] = { ++ { 32, 0 }, ++ { 33, 0 }, ++ { 34, 0 }, ++ { 43, 0 }, ++ { 44, 0 }, ++ { 45, 0 }, ++ { 56, 1 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup nand_data_pins[] = { ++ { 35, 0 }, ++ { 36, 0 }, ++ { 37, 0 }, ++ { 38, 0 }, ++ { 39, 0 }, ++ { 40, 0 }, ++ { 41, 0 }, ++ { 42, 0 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup emmc_ctrl_pins[] = { ++ { 46, 0 }, ++ { 47, 0 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup usb0_pwr_pins[] = { ++ { 63, 0 }, ++ { 64, 0 }, ++}; ++ ++static const struct bcm4908_pinctrl_pin_setup usb1_pwr_pins[] = { ++ { 66, 0 }, ++ { 67, 0 }, ++}; ++ ++struct bcm4908_pinctrl_grp { ++ const char *name; ++ const struct bcm4908_pinctrl_pin_setup *pins; ++ const unsigned int num_pins; ++}; ++ ++static const struct bcm4908_pinctrl_grp bcm4908_pinctrl_grps[] = { ++ { "led_0_grp_a", led_0_pins_a, ARRAY_SIZE(led_0_pins_a) }, ++ { "led_1_grp_a", led_1_pins_a, ARRAY_SIZE(led_1_pins_a) }, ++ { "led_2_grp_a", led_2_pins_a, ARRAY_SIZE(led_2_pins_a) }, ++ { "led_3_grp_a", led_3_pins_a, ARRAY_SIZE(led_3_pins_a) }, ++ { "led_4_grp_a", led_4_pins_a, ARRAY_SIZE(led_4_pins_a) }, ++ { "led_5_grp_a", led_5_pins_a, ARRAY_SIZE(led_5_pins_a) }, ++ { "led_6_grp_a", led_6_pins_a, ARRAY_SIZE(led_6_pins_a) }, ++ { "led_7_grp_a", led_7_pins_a, ARRAY_SIZE(led_7_pins_a) }, ++ { "led_8_grp_a", led_8_pins_a, ARRAY_SIZE(led_8_pins_a) }, ++ { "led_9_grp_a", led_9_pins_a, ARRAY_SIZE(led_9_pins_a) }, ++ { "led_10_grp_a", led_10_pins_a, ARRAY_SIZE(led_10_pins_a) }, ++ { "led_11_grp_a", led_11_pins_a, ARRAY_SIZE(led_11_pins_a) }, ++ { "led_12_grp_a", led_12_pins_a, ARRAY_SIZE(led_12_pins_a) }, ++ { "led_13_grp_a", led_13_pins_a, ARRAY_SIZE(led_13_pins_a) }, ++ { "led_14_grp_a", led_14_pins_a, ARRAY_SIZE(led_14_pins_a) }, ++ { "led_15_grp_a", led_15_pins_a, ARRAY_SIZE(led_15_pins_a) }, ++ { "led_16_grp_a", led_16_pins_a, ARRAY_SIZE(led_16_pins_a) }, ++ { "led_17_grp_a", led_17_pins_a, ARRAY_SIZE(led_17_pins_a) }, ++ { "led_18_grp_a", led_18_pins_a, ARRAY_SIZE(led_18_pins_a) }, ++ { "led_19_grp_a", led_19_pins_a, ARRAY_SIZE(led_19_pins_a) }, ++ { "led_20_grp_a", led_20_pins_a, ARRAY_SIZE(led_20_pins_a) }, ++ { "led_21_grp_a", led_21_pins_a, ARRAY_SIZE(led_21_pins_a) }, ++ { "led_22_grp_a", led_22_pins_a, ARRAY_SIZE(led_22_pins_a) }, ++ { "led_23_grp_a", led_23_pins_a, ARRAY_SIZE(led_23_pins_a) }, ++ { "led_24_grp_a", led_24_pins_a, ARRAY_SIZE(led_24_pins_a) }, ++ { "led_25_grp_a", led_25_pins_a, ARRAY_SIZE(led_25_pins_a) }, ++ { "led_26_grp_a", led_26_pins_a, ARRAY_SIZE(led_26_pins_a) }, ++ { "led_27_grp_a", led_27_pins_a, ARRAY_SIZE(led_27_pins_a) }, ++ { "led_28_grp_a", led_28_pins_a, ARRAY_SIZE(led_28_pins_a) }, ++ { "led_29_grp_a", led_29_pins_a, ARRAY_SIZE(led_29_pins_a) }, ++ { "led_30_grp_a", led_30_pins_a, ARRAY_SIZE(led_30_pins_a) }, ++ { "led_31_grp_a", led_31_pins_a, ARRAY_SIZE(led_31_pins_a) }, ++ { "led_10_grp_b", led_10_pins_b, ARRAY_SIZE(led_10_pins_b) }, ++ { "led_11_grp_b", led_11_pins_b, ARRAY_SIZE(led_11_pins_b) }, ++ { "led_12_grp_b", led_12_pins_b, ARRAY_SIZE(led_12_pins_b) }, ++ { "led_13_grp_b", led_13_pins_b, ARRAY_SIZE(led_13_pins_b) }, ++ { "led_31_grp_b", led_31_pins_b, ARRAY_SIZE(led_31_pins_b) }, ++ { "hs_uart_grp", hs_uart_pins, ARRAY_SIZE(hs_uart_pins) }, ++ { "i2c_grp_a", i2c_pins_a, ARRAY_SIZE(i2c_pins_a) }, ++ { "i2c_grp_b", i2c_pins_b, ARRAY_SIZE(i2c_pins_b) }, ++ { "i2s_grp", i2s_pins, ARRAY_SIZE(i2s_pins) }, ++ { "nand_ctrl_grp", nand_ctrl_pins, ARRAY_SIZE(nand_ctrl_pins) }, ++ { "nand_data_grp", nand_data_pins, ARRAY_SIZE(nand_data_pins) }, ++ { "emmc_ctrl_grp", emmc_ctrl_pins, ARRAY_SIZE(emmc_ctrl_pins) }, ++ { "usb0_pwr_grp", usb0_pwr_pins, ARRAY_SIZE(usb0_pwr_pins) }, ++ { "usb1_pwr_grp", usb1_pwr_pins, ARRAY_SIZE(usb1_pwr_pins) }, ++}; ++ ++/* ++ * Functions ++ */ ++ ++struct bcm4908_pinctrl_function { ++ const char *name; ++ const char * const *groups; ++ const unsigned int num_groups; ++}; ++ ++static const char * const led_0_groups[] = { "led_0_grp_a" }; ++static const char * const led_1_groups[] = { "led_1_grp_a" }; ++static const char * const led_2_groups[] = { "led_2_grp_a" }; ++static const char * const led_3_groups[] = { "led_3_grp_a" }; ++static const char * const led_4_groups[] = { "led_4_grp_a" }; ++static const char * const led_5_groups[] = { "led_5_grp_a" }; ++static const char * const led_6_groups[] = { "led_6_grp_a" }; ++static const char * const led_7_groups[] = { "led_7_grp_a" }; ++static const char * const led_8_groups[] = { "led_8_grp_a" }; ++static const char * const led_9_groups[] = { "led_9_grp_a" }; ++static const char * const led_10_groups[] = { "led_10_grp_a", "led_10_grp_b" }; ++static const char * const led_11_groups[] = { "led_11_grp_a", "led_11_grp_b" }; ++static const char * const led_12_groups[] = { "led_12_grp_a", "led_12_grp_b" }; ++static const char * const led_13_groups[] = { "led_13_grp_a", "led_13_grp_b" }; ++static const char * const led_14_groups[] = { "led_14_grp_a" }; ++static const char * const led_15_groups[] = { "led_15_grp_a" }; ++static const char * const led_16_groups[] = { "led_16_grp_a" }; ++static const char * const led_17_groups[] = { "led_17_grp_a" }; ++static const char * const led_18_groups[] = { "led_18_grp_a" }; ++static const char * const led_19_groups[] = { "led_19_grp_a" }; ++static const char * const led_20_groups[] = { "led_20_grp_a" }; ++static const char * const led_21_groups[] = { "led_21_grp_a" }; ++static const char * const led_22_groups[] = { "led_22_grp_a" }; ++static const char * const led_23_groups[] = { "led_23_grp_a" }; ++static const char * const led_24_groups[] = { "led_24_grp_a" }; ++static const char * const led_25_groups[] = { "led_25_grp_a" }; ++static const char * const led_26_groups[] = { "led_26_grp_a" }; ++static const char * const led_27_groups[] = { "led_27_grp_a" }; ++static const char * const led_28_groups[] = { "led_28_grp_a" }; ++static const char * const led_29_groups[] = { "led_29_grp_a" }; ++static const char * const led_30_groups[] = { "led_30_grp_a" }; ++static const char * const led_31_groups[] = { "led_31_grp_a", "led_31_grp_b" }; ++static const char * const hs_uart_groups[] = { "hs_uart_grp" }; ++static const char * const i2c_groups[] = { "i2c_grp_a", "i2c_grp_b" }; ++static const char * const i2s_groups[] = { "i2s_grp" }; ++static const char * const nand_ctrl_groups[] = { "nand_ctrl_grp" }; ++static const char * const nand_data_groups[] = { "nand_data_grp" }; ++static const char * const emmc_ctrl_groups[] = { "emmc_ctrl_grp" }; ++static const char * const usb0_pwr_groups[] = { "usb0_pwr_grp" }; ++static const char * const usb1_pwr_groups[] = { "usb1_pwr_grp" }; ++ ++static const struct bcm4908_pinctrl_function bcm4908_pinctrl_functions[] = { ++ { "led_0", led_0_groups, ARRAY_SIZE(led_0_groups) }, ++ { "led_1", led_1_groups, ARRAY_SIZE(led_1_groups) }, ++ { "led_2", led_2_groups, ARRAY_SIZE(led_2_groups) }, ++ { "led_3", led_3_groups, ARRAY_SIZE(led_3_groups) }, ++ { "led_4", led_4_groups, ARRAY_SIZE(led_4_groups) }, ++ { "led_5", led_5_groups, ARRAY_SIZE(led_5_groups) }, ++ { "led_6", led_6_groups, ARRAY_SIZE(led_6_groups) }, ++ { "led_7", led_7_groups, ARRAY_SIZE(led_7_groups) }, ++ { "led_8", led_8_groups, ARRAY_SIZE(led_8_groups) }, ++ { "led_9", led_9_groups, ARRAY_SIZE(led_9_groups) }, ++ { "led_10", led_10_groups, ARRAY_SIZE(led_10_groups) }, ++ { "led_11", led_11_groups, ARRAY_SIZE(led_11_groups) }, ++ { "led_12", led_12_groups, ARRAY_SIZE(led_12_groups) }, ++ { "led_13", led_13_groups, ARRAY_SIZE(led_13_groups) }, ++ { "led_14", led_14_groups, ARRAY_SIZE(led_14_groups) }, ++ { "led_15", led_15_groups, ARRAY_SIZE(led_15_groups) }, ++ { "led_16", led_16_groups, ARRAY_SIZE(led_16_groups) }, ++ { "led_17", led_17_groups, ARRAY_SIZE(led_17_groups) }, ++ { "led_18", led_18_groups, ARRAY_SIZE(led_18_groups) }, ++ { "led_19", led_19_groups, ARRAY_SIZE(led_19_groups) }, ++ { "led_20", led_20_groups, ARRAY_SIZE(led_20_groups) }, ++ { "led_21", led_21_groups, ARRAY_SIZE(led_21_groups) }, ++ { "led_22", led_22_groups, ARRAY_SIZE(led_22_groups) }, ++ { "led_23", led_23_groups, ARRAY_SIZE(led_23_groups) }, ++ { "led_24", led_24_groups, ARRAY_SIZE(led_24_groups) }, ++ { "led_25", led_25_groups, ARRAY_SIZE(led_25_groups) }, ++ { "led_26", led_26_groups, ARRAY_SIZE(led_26_groups) }, ++ { "led_27", led_27_groups, ARRAY_SIZE(led_27_groups) }, ++ { "led_28", led_28_groups, ARRAY_SIZE(led_28_groups) }, ++ { "led_29", led_29_groups, ARRAY_SIZE(led_29_groups) }, ++ { "led_30", led_30_groups, ARRAY_SIZE(led_30_groups) }, ++ { "led_31", led_31_groups, ARRAY_SIZE(led_31_groups) }, ++ { "hs_uart", hs_uart_groups, ARRAY_SIZE(hs_uart_groups) }, ++ { "i2c", i2c_groups, ARRAY_SIZE(i2c_groups) }, ++ { "i2s", i2s_groups, ARRAY_SIZE(i2s_groups) }, ++ { "nand_ctrl", nand_ctrl_groups, ARRAY_SIZE(nand_ctrl_groups) }, ++ { "nand_data", nand_data_groups, ARRAY_SIZE(nand_data_groups) }, ++ { "emmc_ctrl", emmc_ctrl_groups, ARRAY_SIZE(emmc_ctrl_groups) }, ++ { "usb0_pwr", usb0_pwr_groups, ARRAY_SIZE(usb0_pwr_groups) }, ++ { "usb1_pwr", usb1_pwr_groups, ARRAY_SIZE(usb1_pwr_groups) }, ++}; ++ ++/* ++ * Groups code ++ */ ++ ++static const struct pinctrl_ops bcm4908_pinctrl_ops = { ++ .get_groups_count = pinctrl_generic_get_group_count, ++ .get_group_name = pinctrl_generic_get_group_name, ++ .get_group_pins = pinctrl_generic_get_group_pins, ++ .dt_node_to_map = pinconf_generic_dt_node_to_map_group, ++ .dt_free_map = pinconf_generic_dt_free_map, ++}; ++ ++/* ++ * Functions code ++ */ ++ ++static int bcm4908_pinctrl_set_mux(struct pinctrl_dev *pctrl_dev, ++ unsigned int func_selector, ++ unsigned int group_selector) ++{ ++ struct bcm4908_pinctrl *bcm4908_pinctrl = pinctrl_dev_get_drvdata(pctrl_dev); ++ const struct bcm4908_pinctrl_grp *group; ++ struct group_desc *group_desc; ++ int i; ++ ++ group_desc = pinctrl_generic_get_group(pctrl_dev, group_selector); ++ if (!group_desc) ++ return -EINVAL; ++ group = group_desc->data; ++ ++ mutex_lock(&bcm4908_pinctrl->mutex); ++ for (i = 0; i < group->num_pins; i++) { ++ u32 lsb = 0; ++ ++ lsb |= group->pins[i].number; ++ lsb |= group->pins[i].function << BCM4908_TEST_PORT_LSB_PINMUX_DATA_SHIFT; ++ ++ writel(0x0, bcm4908_pinctrl->base + BCM4908_TEST_PORT_BLOCK_DATA_MSB); ++ writel(lsb, bcm4908_pinctrl->base + BCM4908_TEST_PORT_BLOCK_DATA_LSB); ++ writel(BCM4908_TEST_PORT_CMD_LOAD_MUX_REG, ++ bcm4908_pinctrl->base + BCM4908_TEST_PORT_COMMAND); ++ } ++ mutex_unlock(&bcm4908_pinctrl->mutex); ++ ++ return 0; ++} ++ ++static const struct pinmux_ops bcm4908_pinctrl_pmxops = { ++ .get_functions_count = pinmux_generic_get_function_count, ++ .get_function_name = pinmux_generic_get_function_name, ++ .get_function_groups = pinmux_generic_get_function_groups, ++ .set_mux = bcm4908_pinctrl_set_mux, ++}; ++ ++/* ++ * Controller code ++ */ ++ ++static struct pinctrl_desc bcm4908_pinctrl_desc = { ++ .name = "bcm4908-pinctrl", ++ .pctlops = &bcm4908_pinctrl_ops, ++ .pmxops = &bcm4908_pinctrl_pmxops, ++}; ++ ++static const struct of_device_id bcm4908_pinctrl_of_match_table[] = { ++ { .compatible = "brcm,bcm4908-pinctrl", }, ++ { } ++}; ++ ++static int bcm4908_pinctrl_probe(struct platform_device *pdev) ++{ ++ struct device *dev = &pdev->dev; ++ struct bcm4908_pinctrl *bcm4908_pinctrl; ++ struct pinctrl_desc *pctldesc; ++ struct pinctrl_pin_desc *pins; ++ int i; ++ ++ bcm4908_pinctrl = devm_kzalloc(dev, sizeof(*bcm4908_pinctrl), GFP_KERNEL); ++ if (!bcm4908_pinctrl) ++ return -ENOMEM; ++ pctldesc = &bcm4908_pinctrl->pctldesc; ++ platform_set_drvdata(pdev, bcm4908_pinctrl); ++ ++ /* Set basic properties */ ++ ++ bcm4908_pinctrl->dev = dev; ++ ++ bcm4908_pinctrl->base = devm_platform_ioremap_resource(pdev, 0); ++ if (IS_ERR(bcm4908_pinctrl->base)) ++ return PTR_ERR(bcm4908_pinctrl->base); ++ ++ mutex_init(&bcm4908_pinctrl->mutex); ++ ++ memcpy(pctldesc, &bcm4908_pinctrl_desc, sizeof(*pctldesc)); ++ ++ /* Set pinctrl properties */ ++ ++ pins = devm_kcalloc(dev, BCM4908_NUM_PINS, sizeof(*pins), GFP_KERNEL); ++ if (!pins) ++ return -ENOMEM; ++ for (i = 0; i < BCM4908_NUM_PINS; i++) { ++ pins[i].number = i; ++ pins[i].name = devm_kasprintf(dev, GFP_KERNEL, "pin-%d", i); ++ if (!pins[i].name) ++ return -ENOMEM; ++ } ++ pctldesc->pins = pins; ++ pctldesc->npins = BCM4908_NUM_PINS; ++ ++ /* Register */ ++ ++ bcm4908_pinctrl->pctldev = devm_pinctrl_register(dev, pctldesc, bcm4908_pinctrl); ++ if (IS_ERR(bcm4908_pinctrl->pctldev)) ++ return dev_err_probe(dev, PTR_ERR(bcm4908_pinctrl->pctldev), ++ "Failed to register pinctrl\n"); ++ ++ /* Groups */ ++ ++ for (i = 0; i < ARRAY_SIZE(bcm4908_pinctrl_grps); i++) { ++ const struct bcm4908_pinctrl_grp *group = &bcm4908_pinctrl_grps[i]; ++ int *pins; ++ int j; ++ ++ pins = devm_kcalloc(dev, group->num_pins, sizeof(*pins), GFP_KERNEL); ++ if (!pins) ++ return -ENOMEM; ++ for (j = 0; j < group->num_pins; j++) ++ pins[j] = group->pins[j].number; ++ ++ pinctrl_generic_add_group(bcm4908_pinctrl->pctldev, group->name, ++ pins, group->num_pins, (void *)group); ++ } ++ ++ /* Functions */ ++ ++ for (i = 0; i < ARRAY_SIZE(bcm4908_pinctrl_functions); i++) { ++ const struct bcm4908_pinctrl_function *function = &bcm4908_pinctrl_functions[i]; ++ ++ pinmux_generic_add_function(bcm4908_pinctrl->pctldev, ++ function->name, ++ function->groups, ++ function->num_groups, NULL); ++ } ++ ++ return 0; ++} ++ ++static struct platform_driver bcm4908_pinctrl_driver = { ++ .probe = bcm4908_pinctrl_probe, ++ .driver = { ++ .name = "bcm4908-pinctrl", ++ .of_match_table = bcm4908_pinctrl_of_match_table, ++ }, ++}; ++ ++module_platform_driver(bcm4908_pinctrl_driver); ++ ++MODULE_AUTHOR("Rafał Miłecki"); ++MODULE_LICENSE("GPL v2"); ++MODULE_DEVICE_TABLE(of, bcm4908_pinctrl_of_match_table);