dts/bindings/counter/espressif,esp32-timer.yaml

# Copyright (c) 2022 Espressif Systems (Shanghai) Co., Ltd.
# SPDX-License-Identifier: Apache-2.0

description: |
        Espressif's general-purpose Timers.
        Each Timer is part of a Timer Group and the number of available Timers
        is SoC-dependent.

        As as example, ESP32 has 4 Timers available, which are split in two
        different groups (TIM0_G0, TIM1_G0, TIM0_G1 and TIM1_G1).

        In order to use one of the available timers on your application add
        a <board>.overlay file with contents as below

          &timer0 {
                  status = "okay";
                  prescaler = <10>;
          };

        From the above, setting 'status' is required while the prescaler is
        optional. Check below for more information on the prescaler.

include: base.yaml

properties:
    group:
      description: |
        The Timer Group index to which a timer belongs.
      type: int
      required: true
      enum:
      - 0
      - 1

    index:
      description: |
        The index that identifies a timer within a Timer Group.
      type: int
      required: true
      enum:
      - 0
      - 1

    prescaler:
      description: |
        The prescaler value defines the factor by which the APB clock will be
        divided. The outcome of which serves as clock reference to the Timer
        itself.

        The allowed values for this property are in the range [2..65535].
        Values above that range will be 16-bit-masked. Values 0 and 1 will be
        forced to 2.
      type: int
      default: 2
      required: false

compatible: "espressif,esp32-timer"