target/linux/bcm27xx/patches-4.19/950-0739-dtoverlays-Add-an-overlay-for-the-Infineon-IRS1125.patch

   1 From 89af5d7df7f548744bd675d96295c0f45e24b31f Mon Sep 17 00:00:00 2001
   2 From: Markus Proeller <markus.proeller@pieye.org>
   3 Date: Thu, 10 Oct 2019 19:13:02 +0200
   4 Subject: [PATCH] dtoverlays: Add an overlay for the Infineon IRS1125
   5
   6 The Infineon IRS1125 is a CSI2 time of flight depth sensor
   7 which has a suitable V4L2 subdevice driver.
   8
   9 Add an overlay for configuring it.
  10
  11 Signed-off-by: Markus Proeller <markus.proeller@pieye.org>
  12 ---
  13  arch/arm/boot/dts/overlays/Makefile           |  1 +
  14  arch/arm/boot/dts/overlays/README             | 12 +++
  15  .../arm/boot/dts/overlays/irs1125-overlay.dts | 97 +++++++++++++++++++
  16  3 files changed, 110 insertions(+)
  17  create mode 100644 arch/arm/boot/dts/overlays/irs1125-overlay.dts
  18
  19 --- a/arch/arm/boot/dts/overlays/Makefile
  20 +++ b/arch/arm/boot/dts/overlays/Makefile
  21 @@ -83,6 +83,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
  22         iqaudio-dac.dtbo \
  23         iqaudio-dacplus.dtbo \
  24         iqaudio-digi-wm8804-audio.dtbo \
  25 +       irs1125.dtbo \
  26         jedec-spi-nor.dtbo \
  27         justboom-dac.dtbo \
  28         justboom-digi.dtbo \
  29 --- a/arch/arm/boot/dts/overlays/README
  30 +++ b/arch/arm/boot/dts/overlays/README
  31 @@ -1347,6 +1347,18 @@ Params: card_name               Override
  32                                  dai stream name.
  33
  34
  35 +Name:   irs1125
  36 +Info:   Infineon irs1125 TOF camera module.
  37 +        Uses Unicam 1, which is the standard camera connector on most Pi
  38 +        variants.
  39 +Load:   dtoverlay=irs1125,<param>=<val>
  40 +Params: i2c_pins_0_1            Use pins 0&1 for the I2C instead of 44&45.
  41 +                                Useful on Compute Modules.
  42 +
  43 +        i2c_pins_28_29          Use pins 28&29 for the I2C instead of 44&45.
  44 +                                This is required for Pi B+, 2, 0, and 0W.
  45 +
  46 +
  47  Name:   jedec-spi-nor
  48  Info:   Adds support for JEDEC-compliant SPI NOR flash devices.  (Note: The
  49          "jedec,spi-nor" kernel driver was formerly known as "m25p80".)
  50 --- /dev/null
  51 +++ b/arch/arm/boot/dts/overlays/irs1125-overlay.dts
  52 @@ -0,0 +1,97 @@
  53 +// SPDX-License-Identifier: GPL-2.0-only
  54 +// Definitions for IRS1125 camera module on VC I2C bus
  55 +/dts-v1/;
  56 +/plugin/;
  57 +
  58 +/{
  59 +       compatible = "brcm,bcm2835";
  60 +
  61 +       fragment@0 {
  62 +               target = <&i2c_vc>;
  63 +               __overlay__ {
  64 +                       #address-cells = <1>;
  65 +                       #size-cells = <0>;
  66 +                       status = "okay";
  67 +
  68 +                       irs1125: irs1125@3D {
  69 +                               compatible = "infineon,irs1125";
  70 +                               reg = <0x3D>;
  71 +                               status = "okay";
  72 +
  73 +                               pwdn-gpios = <&gpio 5 0>;
  74 +                               clocks = <&irs1125_clk>;
  75 +
  76 +                               irs1125_clk: camera-clk {
  77 +                                       compatible = "fixed-clock";
  78 +                                       #clock-cells = <0>;
  79 +                                       clock-frequency = <26000000>;
  80 +                               };
  81 +
  82 +                               port {
  83 +                                       irs1125_0: endpoint {
  84 +                                               remote-endpoint = <&csi1_ep>;
  85 +                                               clock-lanes = <0>;
  86 +                                               data-lanes = <1 2>;
  87 +                                               clock-noncontinuous;
  88 +                                               link-frequencies =
  89 +                                                       /bits/ 64 <297000000>;
  90 +                                       };
  91 +                               };
  92 +                       };
  93 +               };
  94 +       };
  95 +
  96 +       fragment@1 {
  97 +               target = <&csi1>;
  98 +               __overlay__ {
  99 +                       status = "okay";
 100 +
 101 +                       port {
 102 +                               csi1_ep: endpoint {
 103 +                                       remote-endpoint = <&irs1125_0>;
 104 +                               };
 105 +                       };
 106 +               };
 107 +       };
 108 +
 109 +       fragment@2 {
 110 +               target = <&i2c0_pins>;
 111 +               __dormant__ {
 112 +                       brcm,pins = <28 29>;
 113 +                       brcm,function = <4>; /* alt0 */
 114 +               };
 115 +       };
 116 +       fragment@3 {
 117 +               target = <&i2c0_pins>;
 118 +               __overlay__ {
 119 +                       brcm,pins = <44 45>;
 120 +                       brcm,function = <5>; /* alt1 */
 121 +               };
 122 +       };
 123 +       fragment@4 {
 124 +               target = <&i2c0_pins>;
 125 +               __dormant__ {
 126 +                       brcm,pins = <0 1>;
 127 +                       brcm,function = <4>; /* alt0 */
 128 +               };
 129 +       };
 130 +       fragment@5 {
 131 +               target = <&i2c_vc>;
 132 +               __overlay__ {
 133 +                       status = "okay";
 134 +               };
 135 +       };
 136 +
 137 +       fragment@6 {
 138 +               target-path="/__overrides__";
 139 +               __overlay__ {
 140 +                       cam0-pwdn-ctrl = <&irs1125>,"pwdn-gpios:0";
 141 +                       cam0-pwdn      = <&irs1125>,"pwdn-gpios:4";
 142 +               };
 143 +       };
 144 +
 145 +       __overrides__ {
 146 +               i2c_pins_0_1 = <0>,"-2-3+4";
 147 +               i2c_pins_28_29 = <0>,"+2-3-4";
 148 +       };
 149 +};