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https://git.kernel.org/pub/scm/linux/kernel/git/herbert/cryptodev-2.6.git
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d7544cbe04
This new optional priority property allows to specify custom priority level of reset device. Prior this change priority level was hardcoded to 192 and not possible to specify or change. Specifying other value is needed for some boards. Default level when not specified stays at 192 as before. Signed-off-by: Pali Rohár <pali@kernel.org> Acked-by: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org> [add $ref to existing allOf to fix duplication warning] Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
72 lines
1.9 KiB
YAML
72 lines
1.9 KiB
YAML
# SPDX-License-Identifier: GPL-2.0
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%YAML 1.2
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---
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$id: http://devicetree.org/schemas/power/reset/syscon-reboot.yaml#
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$schema: http://devicetree.org/meta-schemas/core.yaml#
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title: Generic SYSCON mapped register reset driver
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maintainers:
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- Sebastian Reichel <sre@kernel.org>
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description: |+
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This is a generic reset driver using syscon to map the reset register.
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The reset is generally performed with a write to the reset register
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defined by the SYSCON register map base plus the offset with the value and
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mask defined in the reboot node. Default will be little endian mode, 32 bit
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access only. The SYSCON registers map is normally retrieved from the
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parental dt-node. So the SYSCON reboot node should be represented as a
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sub-node of a "syscon", "simple-mfd" node. Though the regmap property
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pointing to the system controller node is also supported.
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properties:
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compatible:
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const: syscon-reboot
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mask:
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$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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$ref: /schemas/types.yaml#/definitions/uint32
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description: Offset in the register map for the reboot register (in bytes).
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regmap:
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$ref: /schemas/types.yaml#/definitions/phandle
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deprecated: true
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description: |
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Phandle to the register map node. This property is deprecated in favor of
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the syscon-reboot node been a child of a system controller node.
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value:
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$ref: /schemas/types.yaml#/definitions/uint32
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description: The reset value written to the reboot register (32 bit access).
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priority:
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default: 192
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required:
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- compatible
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- offset
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additionalProperties: false
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allOf:
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- $ref: restart-handler.yaml#
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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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reboot {
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compatible = "syscon-reboot";
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regmap = <®mapnode>;
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offset = <0x0>;
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mask = <0x1>;
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};
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