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077d9951f7
Make the syscon-reboot driver accept value and mask instead of
just value.
Prior to this patch, the property name for the value was 'mask'. If
only the mask property is defined on a node, maintain compatibility
by using it as the value.
This patch is based on commit
f2c199db47 ("power: reset: syscon-poweroff: add a mask property")
and does the same change for the syscon-reboot driver.
Signed-off-by: Martin Schiller <ms@dev.tdt.de>
Acked-by: Rob Herring <robh@kernel.org>
Signed-off-by: Sebastian Reichel <sebastian.reichel@collabora.com>
31 lines
970 B
Plaintext
31 lines
970 B
Plaintext
Generic SYSCON mapped register reset driver
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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 register map pointed by syscon reference plus the offset
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with the value and mask defined in the reboot node.
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Required properties:
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- compatible: should contain "syscon-reboot"
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- regmap: this is phandle to the register map node
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- offset: offset in the register map for the reboot register (in bytes)
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- value: the reset value written to the reboot register (32 bit access)
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Optional properties:
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- mask: update only the register bits defined by the mask (32 bit)
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Legacy usage:
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If a node doesn't contain a value property but contains a mask property, the
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mask property is used as the value.
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Default will be little endian mode, 32 bit access only.
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Examples:
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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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