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

   1 From 3fd6d30806724fa8b07ae625d828c49855c42fbe Mon Sep 17 00:00:00 2001
   2 From: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
   3 Date: Sun, 19 Sep 2021 13:30:43 +0200
   4 Subject: [PATCH] overlays: add support for the MLX90640 thermal camera
   5
   6 This allows using the video-i2c camera driver with MLX90640 thermal
   7 infrared sensors, connected to Raspberry Pi. CONFIG_VIDEO_V4L2_I2C
   8 has to be selected to use the camera.
   9
  10 Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
  11 ---
  12  arch/arm/boot/dts/overlays/Makefile           |  1 +
  13  arch/arm/boot/dts/overlays/README             |  6 +++++
  14  .../boot/dts/overlays/mlx90640-overlay.dts    | 22 +++++++++++++++++++
  15  3 files changed, 29 insertions(+)
  16  create mode 100644 arch/arm/boot/dts/overlays/mlx90640-overlay.dts
  17
  18 --- a/arch/arm/boot/dts/overlays/Makefile
  19 +++ b/arch/arm/boot/dts/overlays/Makefile
  20 @@ -129,6 +129,7 @@ dtbo-$(CONFIG_ARCH_BCM2835) += \
  21         midi-uart5.dtbo \
  22         minipitft13.dtbo \
  23         miniuart-bt.dtbo \
  24 +       mlx90640.dtbo \
  25         mmc.dtbo \
  26         mpu6050.dtbo \
  27         mz61581.dtbo \
  28 --- a/arch/arm/boot/dts/overlays/README
  29 +++ b/arch/arm/boot/dts/overlays/README
  30 @@ -2152,6 +2152,12 @@ Params: krnbt                   Set to "
  31                                  driver without need of hciattach/btattach
  32
  33
  34 +Name:   mlx90640
  35 +Info:   Overlay for i2c connected mlx90640 thermal camera
  36 +Load:   dtoverlay=mlx90640
  37 +Params: <None>
  38 +
  39 +
  40  Name:   mmc
  41  Info:   Selects the bcm2835-mmc SD/MMC driver, optionally with overclock
  42  Load:   dtoverlay=mmc,<param>=<val>
  43 --- /dev/null
  44 +++ b/arch/arm/boot/dts/overlays/mlx90640-overlay.dts
  45 @@ -0,0 +1,22 @@
  46 +/dts-v1/;
  47 +/plugin/;
  48 +
  49 +/ {
  50 +       compatible = "brcm,bcm2835";
  51 +
  52 +       fragment@0 {
  53 +               target = <&i2c_arm>;
  54 +               __overlay__ {
  55 +                       #address-cells = <1>;
  56 +                       #size-cells = <0>;
  57 +                       status = "okay";
  58 +                       clock-frequency = <400000>;
  59 +
  60 +                       mlx90640: mlx90640@33 {
  61 +                               compatible = "melexis,mlx90640";
  62 +                               reg = <0x33>;
  63 +                               status = "okay";
  64 +                       };
  65 +               };
  66 +       };
  67 +};