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Open Menu /Documentation/devicetree/bindings/rtc/trivial-rtc.yaml 
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# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/rtc/trivial-rtc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#

title: Trivial RTCs

maintainers:
  - Alexandre Belloni <alexandre.belloni@bootlin.com>

description: |
  This is a list of trivial RTC devices that have simple device tree
  bindings, consisting only of a compatible field, an address and
  possibly an interrupt line.

allOf:
  - $ref: "rtc.yaml#"

properties:
  compatible:
    enum:
      # AB-RTCMC-32.768kHz-B5ZE-S3: Real Time Clock/Calendar Module with I2C Interface
      - abracon,abb5zes3
      # AB-RTCMC-32.768kHz-EOZ9: Real Time Clock/Calendar Module with I2C Interface
      - abracon,abeoz9
      # I2C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output
      - dallas,ds1374
      # Dallas DS1672 Real-time Clock
      - dallas,ds1672
      # Extremely Accurate I²C RTC with Integrated Crystal and SRAM
      - dallas,ds3232
      # I2C-BUS INTERFACE REAL TIME CLOCK MODULE
      - epson,rx8010
      # I2C-BUS INTERFACE REAL TIME CLOCK MODULE with Battery Backed RAM
      - epson,rx8571
      # I2C-BUS INTERFACE REAL TIME CLOCK MODULE
      - epson,rx8581
      # Intersil ISL1208 Low Power RTC with Battery Backed SRAM
      - isil,isl1208
      # Intersil ISL1218 Low Power RTC with Battery Backed SRAM
      - isil,isl1218
      # Intersil ISL12022 Real-time Clock
      - isil,isl12022
      # Real Time Clock Module with I2C-Bus
      - microcrystal,rv3028
      # Real Time Clock Module with I2C-Bus
      - microcrystal,rv3029
      # Real Time Clock
      - microcrystal,rv8523
      # Real-time clock
      - nxp,pcf2127
      # Real-time clock
      - nxp,pcf2129
      # Real-time Clock Module
      - pericom,pt7c4338
      # I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
      - ricoh,r2025sd
      # I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
      - ricoh,r2221tl
      # I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
      - ricoh,rs5c372a
      # I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
      - ricoh,rs5c372b
      # I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
      - ricoh,rv5c386
      # I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
      - ricoh,rv5c387a
      # 2-wire CMOS real-time clock
      - sii,s35390a
      # I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
      - whwave,sd3078
      # Xircom X1205 I2C RTC
      - xircom,x1205

  reg:
    maxItems: 1

  interrupts:
    maxItems: 1

  start-year: true

required:
  - compatible
  - reg

additionalProperties: false

...