blob: 3412fe7e1e806ad3e9fa7b6e28f756d8a5e1c490 [file] [log] [blame]
# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/power/reset/syscon-poweroff.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Generic SYSCON mapped register poweroff driver
maintainers:
- Sebastian Reichel <sre@kernel.org>
description: |+
This is a generic poweroff driver using syscon to map the poweroff register.
The poweroff is generally performed with a write to the poweroff register
defined by the register map pointed by syscon reference plus the offset
with the value and mask defined in the poweroff node.
Default will be little endian mode, 32 bit access only.
properties:
compatible:
const: syscon-poweroff
mask:
$ref: /schemas/types.yaml#/definitions/uint32
description: Update only the register bits defined by the mask (32 bit).
offset:
$ref: /schemas/types.yaml#/definitions/uint32
description: Offset in the register map for the poweroff register (in bytes).
regmap:
$ref: /schemas/types.yaml#/definitions/phandle
description: Phandle to the register map node.
value:
$ref: /schemas/types.yaml#/definitions/uint32
description: The poweroff value written to the poweroff register (32 bit access).
required:
- compatible
- regmap
- offset
additionalProperties: false
allOf:
- if:
not:
required:
- mask
then:
required:
- value
examples:
- |
poweroff {
compatible = "syscon-poweroff";
regmap = <&regmapnode>;
offset = <0x0>;
mask = <0x7a>;
};