2019-01-10 22:19:03 +00:00
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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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2019-05-21 21:20:29 +00:00
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regulator.yaml, can also be used. However a fixed voltage regulator is
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2019-01-10 22:19:03 +00:00
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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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2019-05-21 21:20:29 +00:00
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allOf:
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2023-03-17 23:36:14 +00:00
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- $ref: regulator.yaml#
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2022-03-30 14:57:41 +00:00
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- if:
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properties:
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compatible:
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contains:
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const: regulator-fixed-clock
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then:
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required:
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- clocks
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- if:
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properties:
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compatible:
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contains:
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const: regulator-fixed-domain
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then:
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required:
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- power-domains
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- required-opps
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2023-01-20 13:30:10 +00:00
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- not:
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required:
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- gpio
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- gpios
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2019-09-10 06:21:19 +00:00
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2019-01-10 22:19:03 +00:00
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properties:
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2024-04-26 21:51:46 +00:00
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$nodename:
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anyOf:
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- description: Preferred name is 'regulator-[0-9]v[0-9]'
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pattern: '^regulator(-[0-9]+v[0-9]+|-[0-9a-z-]+)?$'
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- description: Any name allowed
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deprecated: true
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2019-01-10 22:19:03 +00:00
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compatible:
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enum:
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2019-09-19 06:39:04 +00:00
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- regulator-fixed
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- regulator-fixed-clock
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2020-10-23 13:19:21 +00:00
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- regulator-fixed-domain
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2019-01-10 22:19:03 +00:00
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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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2023-01-20 13:30:10 +00:00
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gpios:
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maxItems: 1
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2019-09-10 06:21:19 +00:00
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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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2020-10-23 13:19:21 +00:00
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power-domains:
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2021-07-05 13:34:41 +00:00
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deprecated: true
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2020-10-23 13:19:21 +00:00
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description:
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Power domain to use for enable control. This binding is only
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available if the compatible is chosen to regulator-fixed-domain.
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maxItems: 1
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required-opps:
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2021-07-05 13:34:41 +00:00
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deprecated: true
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2020-10-23 13:19:21 +00:00
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description:
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Performance state to use for enable control. This binding is only
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available if the compatible is chosen to regulator-fixed-domain. The
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power-domain binding is mandatory if compatible is chosen to
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regulator-fixed-domain.
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maxItems: 1
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2019-01-10 22:19:03 +00:00
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startup-delay-us:
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description: startup time in microseconds
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2019-10-29 01:21:27 +00:00
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off-on-delay-us:
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description: off delay time in microseconds
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2019-01-10 22:19:03 +00:00
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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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2023-10-25 08:46:10 +00:00
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interrupts:
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maxItems: 1
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description:
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Interrupt signaling a critical under-voltage event.
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2023-10-26 14:48:22 +00:00
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system-critical-regulator: true
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2019-01-10 22:19:03 +00:00
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required:
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- compatible
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- regulator-name
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2020-10-05 18:38:27 +00:00
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unevaluatedProperties: false
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2019-01-10 22:19:03 +00:00
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examples:
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- |
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reg_1v8: regulator-1v8 {
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2019-01-10 22:19:03 +00:00
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compatible = "regulator-fixed";
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2019-02-08 14:04:25 +00:00
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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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2020-10-23 13:19:21 +00:00
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reg_1v8_clk: regulator-1v8-clk {
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compatible = "regulator-fixed-clock";
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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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clocks = <&clock1>;
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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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vin-supply = <&parent_reg>;
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};
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reg_1v8_domain: regulator-1v8-domain {
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compatible = "regulator-fixed-domain";
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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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power-domains = <&domain1>;
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required-opps = <&domain1_state1>;
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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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vin-supply = <&parent_reg>;
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};
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2019-01-10 22:19:03 +00:00
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...
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