Documentation/devicetree/bindings/mfd/rk808.txt

   1 RK808 Power Management Integrated Circuit
   2
   3 Required properties:
   4 - compatible: "rockchip,rk808"
   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). See <dt-bindings/clock/rockchip,rk808.h> for clock IDs.
  10
  11 Optional 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 - vcc1-supply:  The input supply for DCDC_REG1
  17 - vcc2-supply:  The input supply for DCDC_REG2
  18 - vcc3-supply:  The input supply for DCDC_REG3
  19 - vcc4-supply:  The input supply for DCDC_REG4
  20 - vcc6-supply:  The input supply for LDO_REG1 and LDO_REG2
  21 - vcc7-supply:  The input supply for LDO_REG3 and LDO_REG7
  22 - vcc8-supply:  The input supply for SWITCH_REG1
  23 - vcc9-supply:  The input supply for LDO_REG4 and LDO_REG5
  24 - vcc10-supply: The input supply for LDO_REG6
  25 - vcc11-supply: The input supply for LDO_REG8
  26 - vcc12-supply: The input supply for SWITCH_REG2
  27
  28 Regulators: All the regulators of RK808 to be instantiated shall be
  29 listed in a child node named 'regulators'. Each regulator is represented
  30 by a child node of the 'regulators' node.
  31
  32         regulator-name {
  33                 /* standard regulator bindings here */
  34         };
  35
  36 Following regulators of the RK808 PMIC block are supported. Note that
  37 the 'n' in regulator name, as in DCDC_REGn or LDOn, represents the DCDC or LDO
  38 number as described in RK808 datasheet.
  39
  40         - DCDC_REGn
  41                 - valid values for n are 1 to 4.
  42         - LDO_REGn
  43                 - valid values for n are 1 to 8.
  44         - SWITCH_REGn
  45                 - valid values for n are 1 to 2
  46
  47 Standard regulator bindings are used inside regulator subnodes. Check
  48   Documentation/devicetree/bindings/regulator/regulator.txt
  49 for more details
  50
  51 Example:
  52         rk808: pmic@1b {
  53                 compatible = "rockchip,rk808";
  54                 clock-output-names = "xin32k", "rk808-clkout2";
  55                 interrupt-parent = <&gpio0>;
  56                 interrupts = <4 IRQ_TYPE_LEVEL_LOW>;
  57                 pinctrl-names = "default";
  58                 pinctrl-0 = <&pmic_int>;
  59                 reg = <0x1b>;
  60                 rockchip,system-power-controller;
  61                 wakeup-source;
  62                 #clock-cells = <1>;
  63
  64                 vcc8-supply = <&vcc_18>;
  65                 vcc9-supply = <&vcc_io>;
  66                 vcc10-supply = <&vcc_io>;
  67                 vcc12-supply = <&vcc_io>;
  68                 vddio-supply = <&vccio_pmu>;
  69
  70                 regulators {
  71                         vdd_cpu: DCDC_REG1 {
  72                                 regulator-always-on;
  73                                 regulator-boot-on;
  74                                 regulator-min-microvolt = <750000>;
  75                                 regulator-max-microvolt = <1300000>;
  76                                 regulator-name = "vdd_arm";
  77                         };
  78
  79                         vdd_gpu: DCDC_REG2 {
  80                                 regulator-always-on;
  81                                 regulator-boot-on;
  82                                 regulator-min-microvolt = <850000>;
  83                                 regulator-max-microvolt = <1250000>;
  84                                 regulator-name = "vdd_gpu";
  85                         };
  86
  87                         vcc_ddr: DCDC_REG3 {
  88                                 regulator-always-on;
  89                                 regulator-boot-on;
  90                                 regulator-name = "vcc_ddr";
  91                         };
  92
  93                         vcc_io: DCDC_REG4 {
  94                                 regulator-always-on;
  95                                 regulator-boot-on;
  96                                 regulator-min-microvolt = <3300000>;
  97                                 regulator-max-microvolt = <3300000>;
  98                                 regulator-name = "vcc_io";
  99                         };
 100
 101                         vccio_pmu: LDO_REG1 {
 102                                 regulator-always-on;
 103                                 regulator-boot-on;
 104                                 regulator-min-microvolt = <3300000>;
 105                                 regulator-max-microvolt = <3300000>;
 106                                 regulator-name = "vccio_pmu";
 107                         };
 108
 109                         vcc_tp: LDO_REG2 {
 110                                 regulator-always-on;
 111                                 regulator-boot-on;
 112                                 regulator-min-microvolt = <3300000>;
 113                                 regulator-max-microvolt = <3300000>;
 114                                 regulator-name = "vcc_tp";
 115                         };
 116
 117                         vdd_10: LDO_REG3 {
 118                                 regulator-always-on;
 119                                 regulator-boot-on;
 120                                 regulator-min-microvolt = <1000000>;
 121                                 regulator-max-microvolt = <1000000>;
 122                                 regulator-name = "vdd_10";
 123                         };
 124
 125                         vcc18_lcd: LDO_REG4 {
 126                                 regulator-always-on;
 127                                 regulator-boot-on;
 128                                 regulator-min-microvolt = <1800000>;
 129                                 regulator-max-microvolt = <1800000>;
 130                                 regulator-name = "vcc18_lcd";
 131                         };
 132
 133                         vccio_sd: LDO_REG5 {
 134                                 regulator-always-on;
 135                                 regulator-boot-on;
 136                                 regulator-min-microvolt = <1800000>;
 137                                 regulator-max-microvolt = <3300000>;
 138                                 regulator-name = "vccio_sd";
 139                         };
 140
 141                         vdd10_lcd: LDO_REG6 {
 142                                 regulator-always-on;
 143                                 regulator-boot-on;
 144                                 regulator-min-microvolt = <1000000>;
 145                                 regulator-max-microvolt = <1000000>;
 146                                 regulator-name = "vdd10_lcd";
 147                         };
 148
 149                         vcc_18: LDO_REG7 {
 150                                 regulator-always-on;
 151                                 regulator-boot-on;
 152                                 regulator-min-microvolt = <1800000>;
 153                                 regulator-max-microvolt = <1800000>;
 154                                 regulator-name = "vcc_18";
 155                         };
 156
 157                         vcca_codec: LDO_REG8 {
 158                                 regulator-always-on;
 159                                 regulator-boot-on;
 160                                 regulator-min-microvolt = <3300000>;
 161                                 regulator-max-microvolt = <3300000>;
 162                                 regulator-name = "vcca_codec";
 163                         };
 164
 165                         vcc_wl: SWITCH_REG1 {
 166                                 regulator-always-on;
 167                                 regulator-boot-on;
 168                                 regulator-name = "vcc_wl";
 169                         };
 170
 171                         vcc_lcd: SWITCH_REG2 {
 172                                 regulator-always-on;
 173                                 regulator-boot-on;
 174                                 regulator-name = "vcc_lcd";
 175                         };
 176                 };
 177         };