# Copyright (c) 2018, Workaround GmbH
# Copyright (c) 2024 STMicroelectronics
# SPDX-License-Identifier: Apache-2.0

description: STM32 RTC

compatible: "st,stm32-rtc"

include:
  - rtc.yaml
  - rtc-device.yaml

properties:
  reg:
    required: true

  calib-out-freq:
    type: int
    description: |
      Calibration output frequency (1 Hz or 512 Hz).
    enum:
      - 1
      - 512

  alarms-count:
    description: |
      Number of alarms supported by STM32 RTC device.
      Most of STM32 MCU series have 2 RTC alarms, A & B.
      Defaults to 0 when not declared in devicetree.

  alrm-exti-line:
    type: int
    description: |
      Number of the Extended Interrupts and Event Controller (EXTI) interrupt
      line connected to the RTC Alarm event.
      Not required, since RTC Alarm interrupt could be routed directly to Nested
      Vectored Interrupt Controller (NVIC) and to Power Control (PWR) wake-up
      pins on some series.
      Valid range: 0 - 31