1 # SPDX-License-Identifier: GPL-2.0 1 # SPDX-License-Identifier: GPL-2.0
2 %YAML 1.2 2 %YAML 1.2
3 --- 3 ---
4 $id: http://devicetree.org/schemas/rtc/rtc-ds1 4 $id: http://devicetree.org/schemas/rtc/rtc-ds1307.yaml#
5 $schema: http://devicetree.org/meta-schemas/co 5 $schema: http://devicetree.org/meta-schemas/core.yaml#
6 6
7 title: Dallas DS1307 and compatible RTC 7 title: Dallas DS1307 and compatible RTC
8 8
9 maintainers: 9 maintainers:
10 - Alexandre Belloni <alexandre.belloni@bootli 10 - Alexandre Belloni <alexandre.belloni@bootlin.com>
11 11
12 properties: 12 properties:
13 compatible: 13 compatible:
14 oneOf: 14 oneOf:
15 - enum: 15 - enum:
16 - dallas,ds1307 16 - dallas,ds1307
17 - dallas,ds1308 17 - dallas,ds1308
18 - dallas,ds1337 18 - dallas,ds1337
19 - dallas,ds1338 19 - dallas,ds1338
20 - dallas,ds1339 20 - dallas,ds1339
21 - dallas,ds1388 21 - dallas,ds1388
22 - dallas,ds1340 22 - dallas,ds1340
23 - dallas,ds1341 23 - dallas,ds1341
24 - maxim,ds3231 24 - maxim,ds3231
25 - st,m41t0 25 - st,m41t0
26 - st,m41t00 26 - st,m41t00
27 - st,m41t11 27 - st,m41t11
28 - microchip,mcp7940x 28 - microchip,mcp7940x
29 - microchip,mcp7941x 29 - microchip,mcp7941x
30 - pericom,pt7c4338 30 - pericom,pt7c4338
31 - epson,rx8025 31 - epson,rx8025
32 - isil,isl12057 32 - isil,isl12057
33 - epson,rx8130 33 - epson,rx8130
34 34
35 - items: 35 - items:
36 - enum: 36 - enum:
37 - st,m41t00 37 - st,m41t00
38 - const: dallas,ds1338 38 - const: dallas,ds1338
39 39
40 reg: 40 reg:
41 maxItems: 1 41 maxItems: 1
42 42
43 interrupts: 43 interrupts:
44 minItems: 1 44 minItems: 1
45 maxItems: 2 45 maxItems: 2
46 46
47 interrupt-names: 47 interrupt-names:
48 maxItems: 2 48 maxItems: 2
49 49
50 "#clock-cells": 50 "#clock-cells":
51 const: 1 51 const: 1
52 52
53 clock-output-names: 53 clock-output-names:
54 description: From common clock binding to 54 description: From common clock binding to override the default output clock name.
55 55
56 wakeup-source: 56 wakeup-source:
57 description: Enables wake up of host syste 57 description: Enables wake up of host system on alarm.
58 58
59 vcc-supply: true 59 vcc-supply: true
60 60
61 allOf: 61 allOf:
62 - $ref: rtc.yaml 62 - $ref: rtc.yaml
63 - if: 63 - if:
64 properties: 64 properties:
65 compatible: 65 compatible:
66 contains: 66 contains:
67 enum: 67 enum:
68 - dallas,ds1339 68 - dallas,ds1339
69 - dallas,ds1340 69 - dallas,ds1340
70 - dallas,ds1388 70 - dallas,ds1388
71 then: 71 then:
72 properties: 72 properties:
73 trickle-resistor-ohms: 73 trickle-resistor-ohms:
74 description: Selected resistor for t 74 description: Selected resistor for trickle charger. Should be specified if trickle
75 charger should be enabled. 75 charger should be enabled.
76 enum: [ 250, 2000, 4000 ] 76 enum: [ 250, 2000, 4000 ]
77 77
78 trickle-diode-disable: 78 trickle-diode-disable:
79 description: Do not use internal tri 79 description: Do not use internal trickle charger diode. Should be given if internal
80 trickle charger diode should be di 80 trickle charger diode should be disabled (superseded by aux-voltage-chargeable)
81 deprecated: true 81 deprecated: true
82 82
83 unevaluatedProperties: false 83 unevaluatedProperties: false
84 84
85 required: 85 required:
86 - compatible 86 - compatible
87 - reg 87 - reg
88 88
89 examples: 89 examples:
90 - | 90 - |
91 i2c { 91 i2c {
92 #address-cells = <1>; 92 #address-cells = <1>;
93 #size-cells = <0>; 93 #size-cells = <0>;
94 94
95 rtc@68 { 95 rtc@68 {
96 compatible = "dallas,ds1337"; 96 compatible = "dallas,ds1337";
97 reg = <0x68>; 97 reg = <0x68>;
98 interrupt-parent = <&gpio4>; 98 interrupt-parent = <&gpio4>;
99 interrupts = <20 0>; 99 interrupts = <20 0>;
100 trickle-resistor-ohms = <250>; 100 trickle-resistor-ohms = <250>;
101 }; 101 };
102 }; 102 };
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.