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

   1 From 07419175fdb507be2c9d3aaf4b7d18306a336348 Mon Sep 17 00:00:00 2001
   2 From: Phil Elwell <phil@raspberrypi.com>
   3 Date: Wed, 2 Aug 2023 11:38:03 +0100
   4 Subject: [PATCH] dt-bindings: input: Add bindings for raspberrypi-button
   5
   6 Add bindings for the firmware-based button driver.
   7
   8 Signed-off-by: Phil Elwell <phil@raspberrypi.com>
   9 ---
  10  .../input/raspberrypi,firmware-button.yaml    | 47 +++++++++++++++++++
  11  1 file changed, 47 insertions(+)
  12  create mode 100644 Documentation/devicetree/bindings/input/raspberrypi,firmware-button.yaml
  13
  14 --- /dev/null
  15 +++ b/Documentation/devicetree/bindings/input/raspberrypi,firmware-button.yaml
  16 @@ -0,0 +1,47 @@
  17 +# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
  18 +%YAML 1.2
  19 +---
  20 +$id: http://devicetree.org/schemas/input/raspberrypi,firmware-button.yaml#
  21 +$schema: http://devicetree.org/meta-schemas/core.yaml#
  22 +
  23 +title: Raspberry Pi firmware buttons
  24 +
  25 +maintainers:
  26 +  - Phil Elwell <phil@raspberrypi.com>
  27 +
  28 +description: >
  29 +  The Raspberry Pi 5 firmware exposes the state of the power button. The
  30 +  raspberrypi-button driver generates a keycode when it is pressed.
  31 +
  32 +properties:
  33 +  compatible:
  34 +    enum:
  35 +      - raspberrypi,firmware-button
  36 +
  37 +  id:
  38 +    description: A numeric identifier of the button
  39 +
  40 +  label:
  41 +    description: Descriptive name of the button.
  42 +
  43 +  linux,code:
  44 +    description: Key code to emit.
  45 +
  46 +required:
  47 +  - compatible
  48 +  - linux,code
  49 +
  50 +additionalProperties: false
  51 +
  52 +examples:
  53 +  - |
  54 +    #include <dt-bindings/input/raspberrypi-button.h>
  55 +
  56 +    pwr_button: pwr_button {
  57 +        compatible = "raspberrypi,firmware-button";
  58 +        id = <RASPBERRYPI_BUTTON_POWER>;
  59 +        label = "pwr_button";
  60 +        linux,code = <116>; // KEY_POWER
  61 +    };
  62 +
  63 +...