dts/bindings/timer/st,stm32-timers.yaml

# Copyright (c) 2020, STMicroelectronics
# SPDX-License-Identifier: Apache-2.0

description: STM32 timers

compatible: "st,stm32-timers"

include: base.yaml

properties:
    reg:
      required: true

    clocks:
      required: true

    interrupts:
      required: false

    st,prescaler:
      type: int
      required: true
      description: |
        Clock prescaler at the input of the timer
        Could be in range [0 .. 0xFFFF] for STM32 General Purpose Timers (CLK/(prescaler+1) )

    st,countermode:
        type: int
        required: false
        default: 0 # STM32_TIM_COUNTERMODE_UP - reset state
        description: |
          Sets timer counter mode.

          Use constants defined in dt-bindings/timer/stm32-timer.h.

          * STM32_TIM_COUNTERMODE_UP             - used as upcounter.
          * STM32_TIM_COUNTERMODE_DOWN           - used as downcounter.
          * STM32_TIM_COUNTERMODE_CENTER_DOWN    - counts up and down alternatively.
                                                   Output compare interrupt flags of output channels
                                                   are set only when the counter is counting down.
          * STM32_TIM_COUNTERMODE_CENTER_UP      - counts up and down alternatively.
                                                   Output compare interrupt flags of output channels
                                                   are set only when the counter is counting up.
          * STM32_TIM_COUNTERMODE_CENTER_UP_DOWN - counts up and down alternatively.
                                                   Output compare interrupt flags of output channels
                                                   are set only when the counter is counting up or down.

          If absent, then STM32_TIM_COUNTERMODE_UP is used (reset state).