1# SPDX-License-Identifier: GPL-2.0
2%YAML 1.2
3---
4$id: http://devicetree.org/schemas/rtc/trivial-rtc.yaml#
5$schema: http://devicetree.org/meta-schemas/core.yaml#
6
7title: Trivial RTCs
8
9maintainers:
10  - Alexandre Belloni <alexandre.belloni@bootlin.com>
11
12description: |
13  This is a list of trivial RTC devices that have simple device tree
14  bindings, consisting only of a compatible field, an address and
15  possibly an interrupt line.
16
17allOf:
18  - $ref: "rtc.yaml#"
19
20properties:
21  compatible:
22    enum:
23      # AB-RTCMC-32.768kHz-B5ZE-S3: Real Time Clock/Calendar Module with I2C Interface
24      - abracon,abb5zes3
25      # AB-RTCMC-32.768kHz-EOZ9: Real Time Clock/Calendar Module with I2C Interface
26      - abracon,abeoz9
27      # I2C, 32-Bit Binary Counter Watchdog RTC with Trickle Charger and Reset Input/Output
28      - dallas,ds1374
29      # Dallas DS1672 Real-time Clock
30      - dallas,ds1672
31      # Extremely Accurate I²C RTC with Integrated Crystal and SRAM
32      - dallas,ds3232
33      # I2C-BUS INTERFACE REAL TIME CLOCK MODULE
34      - epson,rx8010
35      # I2C-BUS INTERFACE REAL TIME CLOCK MODULE with Battery Backed RAM
36      - epson,rx8571
37      # I2C-BUS INTERFACE REAL TIME CLOCK MODULE
38      - epson,rx8581
39      # Intersil ISL1208 Low Power RTC with Battery Backed SRAM
40      - isil,isl1208
41      # Intersil ISL1218 Low Power RTC with Battery Backed SRAM
42      - isil,isl1218
43      # Intersil ISL12022 Real-time Clock
44      - isil,isl12022
45      # Real Time Clock Module with I2C-Bus
46      - microcrystal,rv3028
47      # Real Time Clock Module with I2C-Bus
48      - microcrystal,rv3029
49      # Real Time Clock
50      - microcrystal,rv8523
51      # Real-time clock
52      - nxp,pcf2127
53      # Real-time clock
54      - nxp,pcf2129
55      # Real-time Clock Module
56      - pericom,pt7c4338
57      # I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
58      - ricoh,r2025sd
59      # I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
60      - ricoh,r2221tl
61      # I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
62      - ricoh,rs5c372a
63      # I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
64      - ricoh,rs5c372b
65      # I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
66      - ricoh,rv5c386
67      # I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
68      - ricoh,rv5c387a
69      # 2-wire CMOS real-time clock
70      - sii,s35390a
71      # I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
72      - whwave,sd3078
73      # Xircom X1205 I2C RTC
74      - xircom,x1205
75
76  reg:
77    maxItems: 1
78
79  interrupts:
80    maxItems: 1
81
82  start-year: true
83
84required:
85  - compatible
86  - reg
87
88additionalProperties: false
89
90...
91