git.ipfire.org Git - thirdparty/openwrt.git/blob

   1 From 9c68ba121ba173dd5711b4537bfcdf82ec731725 Mon Sep 17 00:00:00 2001
   2 From: Dave Stevenson <dave.stevenson@raspberrypi.com>
   3 Date: Wed, 3 Apr 2024 16:08:07 +0100
   4 Subject: [PATCH 1040/1085] dt: Add camX_sync option to configure a GPIO
   5  following cam FS/FE
   6
   7 Unicam now takes an optional GPIO to expose frame start/end timing,
   8 so add an override to configure that.
   9
  10 Signed-off-by: Dave Stevenson <dave.stevenson@raspberrypi.com>
  11 ---
  12  arch/arm/boot/dts/broadcom/bcm270x-rpi.dtsi | 13 +++++++++++++
  13  arch/arm/boot/dts/overlays/README           | 12 ++++++++++++
  14  2 files changed, 25 insertions(+)
  15
  16 --- a/arch/arm/boot/dts/broadcom/bcm270x-rpi.dtsi
  17 +++ b/arch/arm/boot/dts/broadcom/bcm270x-rpi.dtsi
  18 @@ -97,6 +97,19 @@
  19                 drm_fb0_vc4 = <&aliases>, "drm-fb0=",&vc4;
  20                 drm_fb1_vc4 = <&aliases>, "drm-fb1=",&vc4;
  21                 drm_fb2_vc4 = <&aliases>, "drm-fb2=",&vc4;
  22 +
  23 +               cam1_sync = <&csi1>, "sync-gpios:0=", <&gpio>,
  24 +                           <&csi1>, "sync-gpios:4",
  25 +                           <&csi1>, "sync-gpios:8=0", <GPIO_ACTIVE_HIGH>;
  26 +               cam1_sync_inverted = <&csi1>, "sync-gpios:0=", <&gpio>,
  27 +                           <&csi1>, "sync-gpios:4",
  28 +                           <&csi1>, "sync-gpios:8=0", <GPIO_ACTIVE_LOW>;
  29 +               cam0_sync = <&csi0>, "sync-gpios:0=", <&gpio>,
  30 +                           <&csi0>, "sync-gpios:4",
  31 +                           <&csi0>, "sync-gpios:8=0", <GPIO_ACTIVE_HIGH>;
  32 +               cam0_sync_inverted = <&csi0>, "sync-gpios:0=", <&gpio>,
  33 +                           <&csi0>, "sync-gpios:4",
  34 +                           <&csi0>, "sync-gpios:8=0", <GPIO_ACTIVE_LOW>;
  35         };
  36  };
  37
  38 --- a/arch/arm/boot/dts/overlays/README
  39 +++ b/arch/arm/boot/dts/overlays/README
  40 @@ -170,6 +170,18 @@ Params:
  41                                  Default of GPIO expander 5 on CM4, but override
  42                                  switches to normal GPIO.
  43
  44 +        cam0_sync               Enable a GPIO to reflect frame sync from CSI0,
  45 +                                going high on frame start, and low on frame end.
  46 +
  47 +        cam0_sync_inverted      Enable a GPIO to reflect frame sync from CSI0
  48 +                                going low on frame start, and high on frame end.
  49 +
  50 +        cam1_sync               Enable a GPIO to reflect frame sync from CSI1,
  51 +                                going high on frame start, and low on frame end.
  52 +
  53 +        cam1_sync_inverted      Enable a GPIO to reflect frame sync from CSI1
  54 +                                going low on frame start, and high on frame end.
  55 +
  56          cooling_fan             Enables the Pi 5 cooling fan (enabled
  57                                  automatically by the firmware)
  58