# Copyright (c) 2018, Linaro Limited
# SPDX-License-Identifier: Apache-2.0

description: |
  Zephyr Input GPIO KEYS parent node

  This defines a group of buttons that can generate input events. Each button
  is defined in a child node of the gpio-keys node and defines a specific key
  code.

  For example:

  #include <zephyr/dt-bindings/input/input-event-codes.h>

  / {
         buttons {
                 compatible = "gpio-keys";
                 button_0 {
                         gpios = <&gpio0 13 (GPIO_PULL_UP | GPIO_ACTIVE_LOW)>;
                         zephyr,code = <INPUT_KEY_0>;
                 };
         };
  };


compatible: "gpio-keys"

include: base.yaml

properties:
  debounce-interval-ms:
    type: int
    default: 30
    description: |
       Debouncing interval time in milliseconds.
       If not specified defaults to 30.

  polling-mode:
    type: boolean
    description: |
      Do not use interrupts for the key GPIOs, poll the pin periodically at the
      specified debounce-interval-ms instead.

child-binding:
  description: GPIO KEYS child node
  properties:
    gpios:
      type: phandle-array
      required: true

    label:
      type: string
      description: Descriptive name of the key

    zephyr,code:
      type: int
      description: Key code to emit.