# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause
%YAML 1.2
---
$id:
http://devicetree.org/schemas/mfd/richtek,rt5120.yaml#
$schema:
http://devicetree.org/meta-schemas/core.yaml#
title: Richtek RT5120 PMIC
maintainers:
- ChiYuan Huang <cy_huang@richtek.com>
description: |
The RT5120 provides four high-efficiency buck converters and one LDO voltage
regulator. The device is targeted at providingthe processor voltage, memory,
I/O, and peripheral rails in home entertainment devices. The I2C interface is
used for dynamic voltage scaling of the processor voltage, power rails on/off
sequence control, operation mode selection.
properties:
compatible:
enum:
- richtek,rt5120
reg:
maxItems: 1
interrupts:
maxItems: 1
interrupt-controller: true
"#interrupt-cells":
const: 1
wakeup-source: true
richtek,enable-undervolt-hiccup:
type: boolean
description: |
If used, under voltage protection trigger hiccup behavior, else latchup as
default
richtek,enable-overvolt-hiccup:
type: boolean
description:
Like as 'enable-uv-hiccup', it configures over voltage protection to
hiccup, else latchup as default
vin1-supply:
description: phandle for buck1 input power source
vin2-supply:
description: phandle for buck2 input power source
vin3-supply:
description: phandle for buck3 input power source
vin4-supply:
description: phandle for buck4 input power source
vinldo-supply:
description: phandle for ldo input power source
regulators:
type: object
patternProperties:
"^buck[1-4]$":
type: object
$ref: /schemas/regulator/regulator.yaml#
unevaluatedProperties: false
properties:
regulator-allowed-modes:
description: |
Used to specify the allowed buck converter operating mode
mode mapping:
0: auto mode
1: force pwm mode
items:
enum: [0, 1]
"^(ldo|exten)$":
type: object
$ref: /schemas/regulator/regulator.yaml#
unevaluatedProperties: false
additionalProperties: false
powerkey:
type: object
description:
PON key that connected to RT5120 PMIC.
properties:
compatible:
enum:
- richtek,rt5120-pwrkey
required:
- compatible
additionalProperties: false
required:
- compatible
- reg
- interrupts
- '#interrupt-cells'
- interrupt-controller
- regulators
- powerkey
additionalProperties: false
examples:
- |
#include <dt-bindings/interrupt-controller/irq.h>
i2c {
#address-cells = <1>;
#size-cells = <0>;
pmic@62 {
compatible = "richtek,rt5120";
reg = <0x62>;
interrupts-extended = <&gpio_intc 32 IRQ_TYPE_LEVEL_LOW>;
interrupt-controller;
#interrupt-cells = <1>;
wakeup-source;
regulators {
buck1 {
regulator-name = "rt5120-buck1";
regulator-min-microvolt = <600000>;
regulator-max-microvolt = <1393750>;
regulator-allowed-modes = <0 1>;
regulator-boot-on;
};
buck2 {
regulator-name = "rt5120-buck2";
regulator-min-microvolt = <1100000>;
regulator-max-microvolt = <1100000>;
regulator-allowed-modes = <0 1>;
regulator-always-on;
};
buck3 {
regulator-name = "rt5120-buck3";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-allowed-modes = <0 1>;
regulator-always-on;
};
buck4 {
regulator-name = "rt5120-buck4";
regulator-min-microvolt = <3300000>;
regulator-max-microvolt = <3300000>;
regulator-allowed-modes = <0 1>;
regulator-always-on;
};
ldo {
regulator-name = "rt5120-ldo";
regulator-min-microvolt = <1800000>;
regulator-max-microvolt = <1800000>;
regulator-always-on;
};
exten {
regulator-name = "rt5120-exten";
regulator-min-microvolt = <3000000>;
regulator-max-microvolt = <3000000>;
regulator-always-on;
};
};
powerkey {
compatible = "richtek,rt5120-pwrkey";
};
};
};
