1# SPDX-License-Identifier: GPL-2.0-only OR BSD-2-Clause 2%YAML 1.2 3--- 4$id: http://devicetree.org/schemas/mfd/rohm,bd71828-pmic.yaml# 5$schema: http://devicetree.org/meta-schemas/core.yaml# 6 7title: ROHM BD71828 Power Management Integrated Circuit 8 9maintainers: 10 - Matti Vaittinen <mazziesaccount@gmail.com> 11 12description: | 13 BD71828GW is a single-chip power management IC for battery-powered portable 14 devices. The IC integrates 7 buck converters, 7 LDOs, and a 1500 mA 15 single-cell linear charger. Also included is a Coulomb counter, a real-time 16 clock (RTC), and a 32.768 kHz clock gate. 17 18properties: 19 compatible: 20 oneOf: 21 - const: rohm,bd71828 22 23 - items: 24 - const: rohm,bd71879 25 - const: rohm,bd71828 26 27 reg: 28 description: 29 I2C slave address. 30 maxItems: 1 31 32 interrupts: 33 maxItems: 1 34 35 gpio-controller: true 36 37 "#gpio-cells": 38 const: 2 39 description: | 40 The first cell is the pin number and the second cell is used to specify 41 flags. See ../gpio/gpio.txt for more information. 42 43 clocks: 44 maxItems: 1 45 46 "#clock-cells": 47 const: 0 48 49 clock-output-names: 50 const: bd71828-32k-out 51 52 rohm,clkout-open-drain: 53 description: clk32kout mode. Set to 1 for "open-drain" or 0 for "cmos". 54 $ref: /schemas/types.yaml#/definitions/uint32 55 minimum: 0 56 maximum: 1 57 58 rohm,charger-sense-resistor-ohms: 59 minimum: 10000000 60 maximum: 50000000 61 description: | 62 BD71827 and BD71828 have SAR ADC for measuring charging currents. 63 External sense resistor (RSENSE in data sheet) should be used. If some 64 other but 30MOhm resistor is used the resistance value should be given 65 here in Ohms. 66 67 regulators: 68 $ref: /schemas/regulator/rohm,bd71828-regulator.yaml 69 description: 70 List of child nodes that specify the regulators. 71 72 leds: 73 $ref: /schemas/leds/rohm,bd71828-leds.yaml 74 75 gpio-reserved-ranges: 76 description: | 77 Usage of BD71828 GPIO pins can be changed via OTP. This property can be 78 used to mark the pins which should not be configured for GPIO. Please see 79 the ../gpio/gpio.txt for more information. 80 81 system-power-controller: true 82 83required: 84 - compatible 85 - reg 86 - interrupts 87 - clocks 88 - "#clock-cells" 89 - regulators 90 - gpio-controller 91 - "#gpio-cells" 92 93additionalProperties: false 94 95examples: 96 - | 97 #include <dt-bindings/interrupt-controller/irq.h> 98 #include <dt-bindings/leds/common.h> 99 i2c { 100 #address-cells = <1>; 101 #size-cells = <0>; 102 pmic: pmic@4b { 103 compatible = "rohm,bd71828"; 104 reg = <0x4b>; 105 106 interrupt-parent = <&gpio1>; 107 interrupts = <29 IRQ_TYPE_LEVEL_LOW>; 108 109 clocks = <&osc 0>; 110 #clock-cells = <0>; 111 clock-output-names = "bd71828-32k-out"; 112 113 gpio-controller; 114 #gpio-cells = <2>; 115 gpio-reserved-ranges = <0 1>, <2 1>; 116 117 rohm,charger-sense-resistor-ohms = <10000000>; 118 119 regulators { 120 buck1: BUCK1 { 121 regulator-name = "buck1"; 122 regulator-min-microvolt = <500000>; 123 regulator-max-microvolt = <2000000>; 124 regulator-ramp-delay = <2500>; 125 }; 126 buck2: BUCK2 { 127 regulator-name = "buck2"; 128 regulator-min-microvolt = <500000>; 129 regulator-max-microvolt = <2000000>; 130 regulator-ramp-delay = <2500>; 131 }; 132 buck3: BUCK3 { 133 regulator-name = "buck3"; 134 regulator-min-microvolt = <1200000>; 135 regulator-max-microvolt = <2000000>; 136 }; 137 buck4: BUCK4 { 138 regulator-name = "buck4"; 139 regulator-min-microvolt = <1000000>; 140 regulator-max-microvolt = <1800000>; 141 }; 142 buck5: BUCK5 { 143 regulator-name = "buck5"; 144 regulator-min-microvolt = <2500000>; 145 regulator-max-microvolt = <3300000>; 146 }; 147 buck6: BUCK6 { 148 regulator-name = "buck6"; 149 regulator-min-microvolt = <500000>; 150 regulator-max-microvolt = <2000000>; 151 regulator-ramp-delay = <2500>; 152 }; 153 buck7: BUCK7 { 154 regulator-name = "buck7"; 155 regulator-min-microvolt = <500000>; 156 regulator-max-microvolt = <2000000>; 157 regulator-ramp-delay = <2500>; 158 }; 159 ldo1: LDO1 { 160 regulator-name = "ldo1"; 161 regulator-min-microvolt = <800000>; 162 regulator-max-microvolt = <3300000>; 163 }; 164 ldo2: LDO2 { 165 regulator-name = "ldo2"; 166 regulator-min-microvolt = <800000>; 167 regulator-max-microvolt = <3300000>; 168 }; 169 ldo3: LDO3 { 170 regulator-name = "ldo3"; 171 regulator-min-microvolt = <800000>; 172 regulator-max-microvolt = <3300000>; 173 }; 174 ldo4: LDO4 { 175 regulator-name = "ldo4"; 176 regulator-min-microvolt = <800000>; 177 regulator-max-microvolt = <3300000>; 178 }; 179 ldo5: LDO5 { 180 regulator-name = "ldo5"; 181 regulator-min-microvolt = <800000>; 182 regulator-max-microvolt = <3300000>; 183 }; 184 ldo6: LDO6 { 185 regulator-name = "ldo6"; 186 regulator-min-microvolt = <1800000>; 187 regulator-max-microvolt = <1800000>; 188 }; 189 ldo7_reg: LDO7 { 190 regulator-name = "ldo7"; 191 regulator-min-microvolt = <800000>; 192 regulator-max-microvolt = <3300000>; 193 }; 194 }; 195 196 leds { 197 compatible = "rohm,bd71828-leds"; 198 199 led-1 { 200 rohm,led-compatible = "bd71828-grnled"; 201 function = LED_FUNCTION_INDICATOR; 202 color = <LED_COLOR_ID_GREEN>; 203 }; 204 led-2 { 205 rohm,led-compatible = "bd71828-ambled"; 206 function = LED_FUNCTION_CHARGING; 207 color = <LED_COLOR_ID_AMBER>; 208 }; 209 }; 210 }; 211 }; 212