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