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