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# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/rtc/rtc.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: RTC Generic Binding
maintainers:
- Alexandre Belloni <alexandre.belloni@bootlin.com>
description: |
This document describes generic bindings which can be used to
describe Real Time Clock devices in a device tree.
properties:
$nodename:
pattern: "^rtc(@.*|-[0-9a-f])*$"
aux-voltage-chargeable:
$ref: /schemas/types.yaml#/definitions/uint32
enum: [0, 1]
description: |
Tells whether the battery/supercap of the RTC (if any) is
chargeable or not:
0: not chargeable
1: chargeable
quartz-load-femtofarads:
$ref: /schemas/types.yaml#/definitions/uint32
description:
The capacitive load of the quartz(x-tal), expressed in femto
Farad (fF). The default value shall be listed (if optional),
and likewise all valid values.
start-year:
$ref: /schemas/types.yaml#/definitions/uint32
description:
If provided, the default hardware range supported by the RTC is
shifted so the first usable year is the specified one.
trickle-diode-disable:
$ref: /schemas/types.yaml#/definitions/flag
description:
Do not use internal trickle charger diode. Should be given if
internal trickle charger diode should be disabled.
deprecated: true
trickle-resistor-ohms:
$ref: /schemas/types.yaml#/definitions/uint32
description:
Selected resistor for trickle charger. Should be given
if trickle charger should be enabled.
trickle-voltage-millivolt:
description:
Selected voltage for trickle charger. Should be given
if trickle charger should be enabled and the trickle voltage is different
from the RTC main power supply.
wakeup-source:
$ref: /schemas/types.yaml#/definitions/flag
description:
Enables wake up of host system on alarm.
additionalProperties: true
...
|
