1RK816 Power Management Integrated Circuit 2 3Required properties: 4- compatible: "rockchip,rk816" 5- reg: I2C slave address 6- interrupt-parent: The parent interrupt controller. 7- interrupts: the interrupt outputs of the controller. 8- #clock-cells: from common clock binding; shall be set to 1 (multiple clock 9 outputs). 10 11Optional properties: 12- clock-output-names: From common clock binding to override the 13 default output clock name 14- rockchip,system-power-controller: Telling whether or not this pmic is controlling 15 the system power. 16- gpio-controller: Specifies that the node is a gpio controller when you attempt to 17 use the TS pin of RK816 by GPIO general interface. 18- #gpio-cells: Should be two. The first cell is the GPIO number and the second cell 19 is used to specify the GPIO polarity. 20- wakeup-source: Flag to indicate this device can wake system (suspend/resume) 21- vcc1-supply: The input supply for DCDC_REG1 22- vcc2-supply: The input supply for DCDC_REG2 23- vcc3-supply: The input supply for DCDC_REG3 24- vcc4-supply: The input supply for DCDC_REG4 25- vcc5-supply: The input supply for LDO_REG1, LDO_REG2, LDO_REG3 26- vcc6-supply: The input supply for LDO_REG4, LDO_REG5, LDO_REG6 27 28- regulator-initial-mode: default mode to set on startup 29- regulator-initial-mode is set as: 30 REGULATOR_MODE_FAST 0x1 31 REGULATOR_MODE_NORMAL 0x2 32Regulators: All the regulators of RK816 to be instantiated shall be 33listed in a child node named 'regulators'. Each regulator is represented 34by a child node of the 'regulators' node. 35 36 regulator-name { 37 /* standard regulator bindings here */ 38 }; 39 40Following regulators of the RK816 PMIC block are supported. Note that 41the 'n' in regulator name, as in DCDC_REGn or LDOn, represents the DCDC or LDO 42number as described in RK816 datasheet. 43 44 - DCDC_REGn 45 - valid values for n are 1 to 4. 46 - LDO_REGn 47 - valid values for n are 1 to 6. 48 49Standard regulator bindings are used inside regulator subnodes. Check 50 Documentation/devicetree/bindings/regulator/regulator.txt 51for more details 52 53Gpio, Rtc, Pwrkey: the node are represented like below. When you attempt to enable 54 the module, setting the "status" to be "okay", otherwise "disabled". 55 56 rtc { 57 status = "okay"; 58 }; 59 60 pwrkey { 61 status = "okay"; 62 }; 63 64 gpio { 65 status = "okay"; 66 }; 67 68Example: 69 rk816: pmic@1a { 70 compatible = "rockchip,rk816"; 71 status = "disabled"; 72 reg = <0x1a>; 73 clock-output-names = "xin32k", "wifibt_32kin"; 74 interrupt-parent = <&gpio0>; 75 interrupts = <1 IRQ_TYPE_LEVEL_LOW>; 76 pinctrl-names = "default"; 77 pinctrl-0 = <&pmic_int>; 78 rockchip,system-power-controller; 79 wakeup-source; 80 #clock-cells = <1>; 81 gpio-controller; 82 #gpio-cells = <2>; 83 84 vcc1-supply = <&vcc_sys>; 85 vcc2-supply = <&vcc_sys>; 86 vcc3-supply = <&vcc_sys>; 87 vcc4-supply = <&vcc_sys>; 88 vcc5-supply = <&vcc_sys>; 89 vcc6-supply = <&vcc_sys>; 90 91 rtc { 92 status = "okay"; 93 }; 94 95 pwrkey { 96 status = "okay"; 97 }; 98 99 gpio { 100 status = "okay"; 101 }; 102 103 regulators { 104 vdd_cpu: DCDC_REG1 { 105 regulator-name = "vdd_logic"; 106 regulator-always-on; 107 regulator-boot-on; 108 regulator-min-microvolt = <750000>; 109 regulator-max-microvolt = <1450000>; 110 regulator-ramp-delay = <6001>; 111 regulator-initial-mode = <1>; 112 regulator-state-mem { 113 regulator-off-in-suspend; 114 }; 115 }; 116 vdd_gpu: DCDC_REG2 { 117 regulator-name = "vdd_gpu"; 118 regulator-always-on; 119 regulator-boot-on; 120 regulator-min-microvolt = <800000>; 121 regulator-max-microvolt = <1250000>; 122 regulator-ramp-delay = <6001>; 123 regulator-initial-mode = <1>; 124 regulator-state-mem { 125 regulator-on-in-suspend; 126 regulator-suspend-microvolt = <1000000>; 127 }; 128 }; 129 130 vcc_ddr: DCDC_REG3 { 131 regulator-always-on; 132 regulator-boot-on; 133 regulator-name = "vcc_ddr"; 134 regulator-initial-mode = <1>; 135 regulator-state-mem { 136 regulator-on-in-suspend; 137 }; 138 }; 139 140 vcc33_io: DCDC_REG4 { 141 regulator-always-on; 142 regulator-boot-on; 143 regulator-min-microvolt = <3300000>; 144 regulator-max-microvolt = <3300000>; 145 regulator-name = "vcc33_io"; 146 regulator-initial-mode = <1>; 147 regulator-state-mem { 148 regulator-on-in-suspend; 149 regulator-suspend-microvolt = <3300000>; 150 }; 151 }; 152 153 vccio_pmu: LDO_REG1 { 154 regulator-always-on; 155 regulator-boot-on; 156 regulator-min-microvolt = <3300000>; 157 regulator-max-microvolt = <3300000>; 158 regulator-name = "vccio_pmu"; 159 regulator-state-mem { 160 regulator-on-in-suspend; 161 regulator-suspend-microvolt = <3300000>; 162 }; 163 }; 164 165 vcc_tp: LDO_REG2 { 166 regulator-always-on; 167 regulator-boot-on; 168 regulator-min-microvolt = <3300000>; 169 regulator-max-microvolt = <3300000>; 170 regulator-name = "vcc_tp"; 171 regulator-state-mem { 172 regulator-off-in-suspend; 173 }; 174 }; 175 176 vdd_10: LDO_REG3 { 177 regulator-always-on; 178 regulator-boot-on; 179 regulator-min-microvolt = <1000000>; 180 regulator-max-microvolt = <1000000>; 181 regulator-name = "vdd_10"; 182 regulator-state-mem { 183 regulator-on-in-suspend; 184 regulator-suspend-microvolt = <1000000>; 185 }; 186 }; 187 188 vcc18_lcd: LDO_REG4 { 189 regulator-always-on; 190 regulator-boot-on; 191 regulator-min-microvolt = <1800000>; 192 regulator-max-microvolt = <1800000>; 193 regulator-name = "vcc18_lcd"; 194 regulator-state-mem { 195 regulator-on-in-suspend; 196 regulator-suspend-microvolt = <1800000>; 197 }; 198 }; 199 200 vccio_sd: LDO_REG5 { 201 regulator-always-on; 202 regulator-boot-on; 203 regulator-min-microvolt = <1800000>; 204 regulator-max-microvolt = <3300000>; 205 regulator-name = "vccio_sd"; 206 regulator-state-mem { 207 regulator-on-in-suspend; 208 regulator-suspend-microvolt = <3300000>; 209 }; 210 }; 211 212 vdd10_lcd: LDO_REG6 { 213 regulator-always-on; 214 regulator-boot-on; 215 regulator-min-microvolt = <1000000>; 216 regulator-max-microvolt = <1000000>; 217 regulator-name = "vdd10_lcd"; 218 regulator-state-mem { 219 regulator-on-in-suspend; 220 regulator-suspend-microvolt = <1000000>; 221 }; 222 }; 223 224 }; 225 }; 226