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139 lines
3.6 KiB
139 lines
3.6 KiB
# 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 <[email protected]> |
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- Mark Brown <[email protected]> |
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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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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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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-fixed-domain |
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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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power-domains: |
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deprecated: true |
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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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deprecated: true |
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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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startup-delay-us: |
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description: startup time in microseconds |
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off-on-delay-us: |
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description: off delay time in microseconds |
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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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required: |
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- compatible |
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- regulator-name |
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unevaluatedProperties: false |
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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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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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...
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