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# SPDX-License-Identifier: GPL-2.0
%YAML 1.2
---
$id: http://devicetree.org/schemas/regulator/fixed-regulator.yaml#
$schema: http://devicetree.org/meta-schemas/core.yaml#
title: Fixed Voltage regulators
maintainers:
- Liam Girdwood <lgirdwood@gmail.com>
- Mark Brown <broonie@kernel.org>
description:
Any property defined as part of the core regulator binding, defined in
regulator.txt, can also be used. However a fixed voltage regulator is
expected to have the regulator-min-microvolt and regulator-max-microvolt
to be the same.
properties:
compatible:
const: regulator-fixed
regulator-name: true
gpio:
description: gpio to use for enable control
maxItems: 1
startup-delay-us:
description: startup time in microseconds
$ref: /schemas/types.yaml#/definitions/uint32
enable-active-high:
description:
Polarity of GPIO is Active high. If this property is missing,
the default assumed is Active low.
type: boolean
gpio-open-drain:
description:
GPIO is open drain type. If this property is missing then default
assumption is false.
type: boolean
vin-supply:
description: Input supply phandle.
$ref: /schemas/types.yaml#/definitions/phandle
required:
- compatible
- regulator-name
examples:
- |
reg_1v8: regulator-1v8 {
compatible = "regulator-fixed";
regulator-name = "1v8";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
gpio = <&gpio1 16 0>;
startup-delay-us = <70000>;
enable-active-high;
regulator-boot-on;
gpio-open-drain;
vin-supply = <&parent_reg>;
};
...
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