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