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