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# 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;
};
};
};
};
|
