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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: Real Time Clock Common Properties
- 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:
- $nodename:
- pattern: "^rtc(@.*|-([0-9]|[1-9][0-9]+))?$"
- 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:
- 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:
- 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.
- reset-source:
- $ref: /schemas/types.yaml#/definitions/flag
- description:
- The RTC is able to reset the machine.
- additionalProperties: true
- ...
|
