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31e54086dd
Implementation of the regulator framework driver for the Versatile Express voltage control. Devices without voltage constraints (ie. "regulator-[min|max]-microvolt" properties in the DT node) are treated as fixed (or rather read-only) regulators. Signed-off-by: Pawel Moll <pawel.moll@arm.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
33 lines
923 B
Plaintext
33 lines
923 B
Plaintext
Versatile Express voltage regulators
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Requires node properties:
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- "compatible" value: "arm,vexpress-volt"
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- "arm,vexpress-sysreg,func" when controlled via vexpress-sysreg
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(see Documentation/devicetree/bindings/arm/vexpress-sysreg.txt
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for more details)
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Required regulator properties:
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- "regulator-name"
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- "regulator-always-on"
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Optional regulator properties:
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- "regulator-min-microvolt"
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- "regulator-max-microvolt"
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See Documentation/devicetree/bindings/regulator/regulator.txt
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for more details about the regulator properties.
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When no "regulator-[min|max]-microvolt" properties are defined,
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the device is treated as fixed (or rather "read-only") regulator.
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Example:
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volt@0 {
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compatible = "arm,vexpress-volt";
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arm,vexpress-sysreg,func = <2 0>;
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regulator-name = "Cores";
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regulator-min-microvolt = <800000>;
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regulator-max-microvolt = <1050000>;
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regulator-always-on;
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};
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