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      # EM Microelectronic EM3027 RTC
34      - emmicro,em3027
35      # I2C-BUS INTERFACE REAL TIME CLOCK MODULE
36      - epson,rx8010
37      # I2C-BUS INTERFACE REAL TIME CLOCK MODULE
38      - epson,rx8025
39      - epson,rx8035
40      # I2C-BUS INTERFACE REAL TIME CLOCK MODULE with Battery Backed RAM
41      - epson,rx8571
42      # I2C-BUS INTERFACE REAL TIME CLOCK MODULE
43      - epson,rx8581
44      # Intersil ISL1208 Low Power RTC with Battery Backed SRAM
45      - isil,isl1208
46      # Intersil ISL1218 Low Power RTC with Battery Backed SRAM
47      - isil,isl1218
48      # Intersil ISL12022 Real-time Clock
49      - isil,isl12022
50      # Real Time Clock Module with I2C-Bus
51      - microcrystal,rv3028
52      # Real Time Clock Module with I2C-Bus
53      - microcrystal,rv3029
54      # Real Time Clock
55      - microcrystal,rv8523
56      - nxp,pca2129
57      - nxp,pcf2129
58      # Real-time Clock Module
59      - pericom,pt7c4338
60      # I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
61      - ricoh,r2025sd
62      # I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
63      - ricoh,r2221tl
64      # I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
65      - ricoh,rs5c372a
66      # I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
67      - ricoh,rs5c372b
68      # I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
69      - ricoh,rv5c386
70      # I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
71      - ricoh,rv5c387a
72      # 2-wire CMOS real-time clock
73      - sii,s35390a
74      # I2C bus SERIAL INTERFACE REAL-TIME CLOCK IC
75      - whwave,sd3078
76      # Xircom X1205 I2C RTC
77      - xircom,x1205
78
79  reg:
80    maxItems: 1
81
82  interrupts:
83    maxItems: 1
84
85  start-year: true
86
87required:
88  - compatible
89  - reg
90
91additionalProperties: false
92
93...
94