1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/mfd/richtek,rt5120.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: Richtek RT5120 PMIC 8 9maintainers: 10 - ChiYuan Huang <cy_huang@richtek.com> 11 12description: | 13 The RT5120 provides four high-efficiency buck converters and one LDO voltage 14 regulator. The device is targeted at providingthe processor voltage, memory, 15 I/O, and peripheral rails in home entertainment devices. The I2C interface is 16 used for dynamic voltage scaling of the processor voltage, power rails on/off 17 sequence control, operation mode selection. 18 19properties: 20 compatible: 21 enum: 22 - richtek,rt5120 23 24 reg: 25 maxItems: 1 26 27 interrupts: 28 maxItems: 1 29 30 interrupt-controller: true 31 32 "#interrupt-cells": 33 const: 1 34 35 wakeup-source: true 36 37 richtek,enable-undervolt-hiccup: 38 type: boolean 39 description: | 40 If used, under voltage protection trigger hiccup behavior, else latchup as 41 default 42 43 richtek,enable-overvolt-hiccup: 44 type: boolean 45 description: 46 Like as 'enable-uv-hiccup', it configures over voltage protection to 47 hiccup, else latchup as default 48 49 vin1-supply: 50 description: phandle for buck1 input power source 51 52 vin2-supply: 53 description: phandle for buck2 input power source 54 55 vin3-supply: 56 description: phandle for buck3 input power source 57 58 vin4-supply: 59 description: phandle for buck4 input power source 60 61 vinldo-supply: 62 description: phandle for ldo input power source 63 64 regulators: 65 type: object 66 67 patternProperties: 68 "^buck[1-4]$": 69 type: object 70 $ref: /schemas/regulator/regulator.yaml# 71 unevaluatedProperties: false 72 73 properties: 74 regulator-allowed-modes: 75 description: | 76 Used to specify the allowed buck converter operating mode 77 mode mapping: 78 0: auto mode 79 1: force pwm mode 80 items: 81 enum: [0, 1] 82 83 "^(ldo|exten)$": 84 type: object 85 $ref: /schemas/regulator/regulator.yaml# 86 unevaluatedProperties: false 87 88 additionalProperties: false 89 90 powerkey: 91 type: object 92 description: 93 PON key that connected to RT5120 PMIC. 94 95 properties: 96 compatible: 97 enum: 98 - richtek,rt5120-pwrkey 99 100 required: 101 - compatible 102 103 additionalProperties: false 104 105required: 106 - compatible 107 - reg 108 - interrupts 109 - '#interrupt-cells' 110 - interrupt-controller 111 - regulators 112 - powerkey 113 114additionalProperties: false 115 116examples: 117 - | 118 #include <dt-bindings/interrupt-controller/irq.h> 119 120 i2c { 121 #address-cells = <1>; 122 #size-cells = <0>; 123 124 pmic@62 { 125 compatible = "richtek,rt5120"; 126 reg = <0x62>; 127 interrupts-extended = <&gpio_intc 32 IRQ_TYPE_LEVEL_LOW>; 128 interrupt-controller; 129 #interrupt-cells = <1>; 130 wakeup-source; 131 132 regulators { 133 buck1 { 134 regulator-name = "rt5120-buck1"; 135 regulator-min-microvolt = <600000>; 136 regulator-max-microvolt = <1393750>; 137 regulator-allowed-modes = <0 1>; 138 regulator-boot-on; 139 }; 140 buck2 { 141 regulator-name = "rt5120-buck2"; 142 regulator-min-microvolt = <1100000>; 143 regulator-max-microvolt = <1100000>; 144 regulator-allowed-modes = <0 1>; 145 regulator-always-on; 146 }; 147 buck3 { 148 regulator-name = "rt5120-buck3"; 149 regulator-min-microvolt = <1800000>; 150 regulator-max-microvolt = <1800000>; 151 regulator-allowed-modes = <0 1>; 152 regulator-always-on; 153 }; 154 buck4 { 155 regulator-name = "rt5120-buck4"; 156 regulator-min-microvolt = <3300000>; 157 regulator-max-microvolt = <3300000>; 158 regulator-allowed-modes = <0 1>; 159 regulator-always-on; 160 }; 161 ldo { 162 regulator-name = "rt5120-ldo"; 163 regulator-min-microvolt = <1800000>; 164 regulator-max-microvolt = <1800000>; 165 regulator-always-on; 166 }; 167 exten { 168 regulator-name = "rt5120-exten"; 169 regulator-min-microvolt = <3000000>; 170 regulator-max-microvolt = <3000000>; 171 regulator-always-on; 172 }; 173 }; 174 powerkey { 175 compatible = "richtek,rt5120-pwrkey"; 176 }; 177 }; 178 }; 179