31 lines
1,001 B
Plaintext
31 lines
1,001 B
Plaintext
Generic SYSCON mapped register poweroff driver
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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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Required properties:
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- compatible: should contain "syscon-poweroff"
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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 poweroff register (in bytes)
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- value: the poweroff value written to the poweroff 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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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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