1 # SPDX-License-Identifier: GPL-2.0
2 %YAML 1.2
3 ---
4 $id: http://devicetree.org/schemas/rtc/rtc.yam
5 $schema: http://devicetree.org/meta-schemas/co
6
7 title: Real Time Clock Common Properties
8
9 maintainers:
10 - Alexandre Belloni <alexandre.belloni@bootli
11
12 description: |
13 This document describes generic bindings whi
14 describe Real Time Clock devices in a device
15
16 properties:
17 $nodename:
18 pattern: "^rtc(@.*|-([0-9]|[1-9][0-9]+))?$
19
20 aux-voltage-chargeable:
21 $ref: /schemas/types.yaml#/definitions/uin
22 enum: [0, 1]
23 description: |
24 Tells whether the battery/supercap of th
25 chargeable or not:
26 0: not chargeable
27 1: chargeable
28
29 quartz-load-femtofarads:
30 description:
31 The capacitive load of the quartz(x-tal)
32 Farad (fF). The default value shall be l
33 and likewise all valid values.
34
35 start-year:
36 $ref: /schemas/types.yaml#/definitions/uin
37 description:
38 If provided, the default hardware range
39 shifted so the first usable year is the
40
41 trickle-diode-disable:
42 $ref: /schemas/types.yaml#/definitions/fla
43 description:
44 Do not use internal trickle charger diod
45 internal trickle charger diode should be
46 deprecated: true
47
48 trickle-resistor-ohms:
49 description:
50 Selected resistor for trickle charger. S
51 if trickle charger should be enabled.
52
53 trickle-voltage-millivolt:
54 description:
55 Selected voltage for trickle charger. Sh
56 if trickle charger should be enabled and
57 from the RTC main power supply.
58
59 wakeup-source:
60 $ref: /schemas/types.yaml#/definitions/fla
61 description:
62 Enables wake up of host system on alarm.
63
64 reset-source:
65 $ref: /schemas/types.yaml#/definitions/fla
66 description:
67 The RTC is able to reset the machine.
68
69 additionalProperties: true
70
71 ...
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