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141 lines
3.9 KiB
141 lines
3.9 KiB
# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause |
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%YAML 1.2 |
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--- |
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$id: http://devicetree.org/schemas/regulator/richtek,rt5190a-regulator.yaml# |
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$schema: http://devicetree.org/meta-schemas/core.yaml# |
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title: Richtek RT5190A PMIC Regulator |
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maintainers: |
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- ChiYuan Huang <[email protected]> |
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description: | |
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The RT5190A integrates 1 channel buck controller, 3 channels high efficiency |
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synchronous buck converters, 1 LDO, I2C control interface and peripherial |
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logical control. |
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It also supports mute AC OFF depop sound and quick setting storage while |
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input power is removed. |
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properties: |
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compatible: |
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enum: |
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- richtek,rt5190a |
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reg: |
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maxItems: 1 |
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interrupts: |
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maxItems: 1 |
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vin2-supply: |
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description: phandle to buck2 input voltage. |
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vin3-supply: |
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description: phandle to buck3 input voltage. |
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vin4-supply: |
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description: phandle to buck4 input voltage. |
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vinldo-supply: |
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description: phandle to ldo input voltage |
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richtek,mute-enable: |
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description: | |
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The mute function uses 'mutein', 'muteout', and 'vdet' pins as the control |
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signal. When enabled, The normal behavior is to bypass the 'mutein' signal |
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'muteout'. But if the power source removal is detected from 'vdet', |
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whatever the 'mutein' signal is, it will pull down the 'muteout' to force |
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speakers mute. this function is commonly used to prevent the speaker pop |
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noise during AC power turned off in the modern TV system design. |
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type: boolean |
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regulators: |
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type: object |
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patternProperties: |
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"^buck[1-4]$|^ldo$": |
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type: object |
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$ref: regulator.yaml# |
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description: | |
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regulator description for buck1 to buck4, and ldo. |
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properties: |
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regulator-allowed-modes: |
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description: | |
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buck operating mode, only buck1/4 support mode operating. |
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0: auto mode |
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1: force pwm mode |
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items: |
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enum: [0, 1] |
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richtek,latchup-enable: |
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type: boolean |
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description: | |
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If specified, undervolt protection mode changes from the default |
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hiccup to latchup. |
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unevaluatedProperties: false |
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additionalProperties: false |
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required: |
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- compatible |
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- reg |
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- regulators |
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additionalProperties: false |
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examples: |
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- | |
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#include <dt-bindings/interrupt-controller/irq.h> |
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#include <dt-bindings/regulator/richtek,rt5190a-regulator.h> |
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i2c { |
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#address-cells = <1>; |
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#size-cells = <0>; |
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pmic@64 { |
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compatible = "richtek,rt5190a"; |
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reg = <0x64>; |
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interrupts-extended = <&gpio26 0 IRQ_TYPE_LEVEL_LOW>; |
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vin2-supply = <&rt5190_buck1>; |
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vin3-supply = <&rt5190_buck1>; |
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vin4-supply = <&rt5190_buck1>; |
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regulators { |
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rt5190_buck1: buck1 { |
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regulator-name = "rt5190a-buck1"; |
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regulator-min-microvolt = <5090000>; |
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regulator-max-microvolt = <5090000>; |
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regulator-allowed-modes = <RT5190A_OPMODE_AUTO RT5190A_OPMODE_FPWM>; |
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regulator-boot-on; |
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}; |
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buck2 { |
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regulator-name = "rt5190a-buck2"; |
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regulator-min-microvolt = <600000>; |
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regulator-max-microvolt = <1400000>; |
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regulator-boot-on; |
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}; |
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buck3 { |
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regulator-name = "rt5190a-buck3"; |
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regulator-min-microvolt = <600000>; |
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regulator-max-microvolt = <1400000>; |
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regulator-boot-on; |
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}; |
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buck4 { |
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regulator-name = "rt5190a-buck4"; |
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regulator-min-microvolt = <850000>; |
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regulator-max-microvolt = <850000>; |
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regulator-allowed-modes = <RT5190A_OPMODE_AUTO RT5190A_OPMODE_FPWM>; |
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regulator-boot-on; |
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}; |
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ldo { |
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regulator-name = "rt5190a-ldo"; |
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regulator-min-microvolt = <1200000>; |
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regulator-max-microvolt = <1200000>; |
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regulator-boot-on; |
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}; |
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}; |
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}; |
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};
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