git.openwrt.org Git - openwrt/staging/xback.git/blob

   1 From 7a4d12054b24c8cb980be4c6466b50c14beb78d3 Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.org>
   3 Date: Wed, 28 Aug 2019 13:35:19 +0100
   4 Subject: [PATCH] dtoverlays: Add overlay for the Sony IMX219 image
   5  sensor.
   6
   7 Adds an overlay for the IMX219 image sensor, connected to the
   8 Unicam CSI2 receiver peripheral.
   9
  10 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.org>
  11 ---
  12  arch/arm/boot/dts/overlays/Makefile           |   1 +
  13  arch/arm/boot/dts/overlays/README             |  12 ++
  14  arch/arm/boot/dts/overlays/imx219-overlay.dts | 129 ++++++++++++++++++
  15  3 files changed, 142 insertions(+)
  16  create mode 100644 arch/arm/boot/dts/overlays/imx219-overlay.dts
  17
  18 --- a/arch/arm/boot/dts/overlays/Makefile
  19 +++ b/arch/arm/boot/dts/overlays/Makefile
  20 @@ -77,6 +77,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
  21         i2c6.dtbo \
  22         i2s-gpio28-31.dtbo \
  23         ilitek251x.dtbo \
  24 +       imx219.dtbo \
  25         iqaudio-codec.dtbo \
  26         iqaudio-dac.dtbo \
  27         iqaudio-dacplus.dtbo \
  28 --- a/arch/arm/boot/dts/overlays/README
  29 +++ b/arch/arm/boot/dts/overlays/README
  30 @@ -1269,6 +1269,18 @@ Params: interrupt               GPIO use
  31                                  touchscreen (in pixels)
  32
  33
  34 +Name:   imx219
  35 +Info:   Sony IMX219 camera module.
  36 +        Uses Unicam 1, which is the standard camera connector on most Pi
  37 +        variants.
  38 +Load:   dtoverlay=imx219,<param>=<val>
  39 +Params: i2c_pins_0_1            Use pins 0&1 for the I2C instead of 44&45.
  40 +                                Useful on Compute Modules.
  41 +
  42 +        i2c_pins_28_29          Use pins 28&29 for the I2C instead of 44&45.
  43 +                                This is required for Pi B+, 2, 0, and 0W.
  44 +
  45 +
  46  Name:   iqaudio-codec
  47  Info:   Configures the IQaudio Codec audio card
  48  Load:   dtoverlay=iqaudio-codec
  49 --- /dev/null
  50 +++ b/arch/arm/boot/dts/overlays/imx219-overlay.dts
  51 @@ -0,0 +1,129 @@
  52 +// SPDX-License-Identifier: GPL-2.0-only
  53 +// Definitions for IMX219 camera module on VC I2C bus
  54 +/dts-v1/;
  55 +/plugin/;
  56 +
  57 +#include <dt-bindings/gpio/gpio.h>
  58 +
  59 +/{
  60 +       compatible = "brcm,bcm2835";
  61 +
  62 +       fragment@0 {
  63 +               target = <&i2c_vc>;
  64 +               __overlay__ {
  65 +                       #address-cells = <1>;
  66 +                       #size-cells = <0>;
  67 +                       status = "okay";
  68 +
  69 +                       imx219: imx219@10 {
  70 +                               compatible = "sony,imx219";
  71 +                               reg = <0x10>;
  72 +                               status = "okay";
  73 +
  74 +                               clocks = <&imx219_clk>;
  75 +                               clock-names = "xclk";
  76 +
  77 +                               VANA-supply = <&imx219_vana>;   /* 2.8v */
  78 +                               VDIG-supply = <&imx219_vdig>;   /* 1.8v */
  79 +                               VDDL-supply = <&imx219_vddl>;   /* 1.2v */
  80 +
  81 +                               imx219_clk: camera-clk {
  82 +                                       compatible = "fixed-clock";
  83 +                                       #clock-cells = <0>;
  84 +                                       clock-frequency = <24000000>;
  85 +                               };
  86 +
  87 +                               port {
  88 +                                       imx219_0: endpoint {
  89 +                                               remote-endpoint = <&csi1_ep>;
  90 +                                               clock-lanes = <0>;
  91 +                                               data-lanes = <1 2>;
  92 +                                               clock-noncontinuous;
  93 +                                               link-frequencies =
  94 +                                                       /bits/ 64 <297000000>;
  95 +                                       };
  96 +                               };
  97 +                       };
  98 +               };
  99 +       };
 100 +
 101 +       fragment@1 {
 102 +               target = <&csi1>;
 103 +               __overlay__ {
 104 +                       status = "okay";
 105 +
 106 +                       port {
 107 +                               csi1_ep: endpoint {
 108 +                                       remote-endpoint = <&imx219_0>;
 109 +                               };
 110 +                       };
 111 +               };
 112 +       };
 113 +
 114 +       fragment@2 {
 115 +               target = <&i2c0_pins>;
 116 +               __dormant__ {
 117 +                       brcm,pins = <28 29>;
 118 +                       brcm,function = <4>; /* alt0 */
 119 +               };
 120 +       };
 121 +       fragment@3 {
 122 +               target = <&i2c0_pins>;
 123 +               __overlay__ {
 124 +                       brcm,pins = <44 45>;
 125 +                       brcm,function = <5>; /* alt1 */
 126 +               };
 127 +       };
 128 +       fragment@4 {
 129 +               target = <&i2c0_pins>;
 130 +               __dormant__ {
 131 +                       brcm,pins = <0 1>;
 132 +                       brcm,function = <4>; /* alt0 */
 133 +               };
 134 +       };
 135 +       fragment@5 {
 136 +               target = <&i2c_vc>;
 137 +               __overlay__ {
 138 +                       status = "okay";
 139 +               };
 140 +       };
 141 +
 142 +       fragment@6 {
 143 +               target-path="/";
 144 +               __overlay__ {
 145 +                       imx219_vana: fixedregulator@0 {
 146 +                               compatible = "regulator-fixed";
 147 +                               regulator-name = "imx219_vana";
 148 +                               regulator-min-microvolt = <2800000>;
 149 +                               regulator-max-microvolt = <2800000>;
 150 +                               gpio = <&gpio 41 GPIO_ACTIVE_HIGH>;
 151 +                               enable-active-high;
 152 +                       };
 153 +                       imx219_vdig: fixedregulator@1 {
 154 +                               compatible = "regulator-fixed";
 155 +                               regulator-name = "imx219_vdig";
 156 +                               regulator-min-microvolt = <1800000>;
 157 +                               regulator-max-microvolt = <1800000>;
 158 +                       };
 159 +                       imx219_vddl: fixedregulator@2 {
 160 +                               compatible = "regulator-fixed";
 161 +                               regulator-name = "imx219_vddl";
 162 +                               regulator-min-microvolt = <1200000>;
 163 +                               regulator-max-microvolt = <1200000>;
 164 +                       };
 165 +               };
 166 +       };
 167 +
 168 +       fragment@7 {
 169 +               target-path="/__overrides__";
 170 +               __overlay__ {
 171 +                       cam0-pwdn-ctrl = <&imx219_vana>,"gpio:0";
 172 +                       cam0-pwdn      = <&imx219_vana>,"gpio:4";
 173 +               };
 174 +       };
 175 +
 176 +       __overrides__ {
 177 +               i2c_pins_0_1 = <0>,"-2-3+4";
 178 +               i2c_pins_28_29 = <0>,"+2-3-4";
 179 +       };
 180 +};