Documentation/devicetree/bindings/mfd/tps6507x.txt

   1 TPS6507x Power Management Integrated Circuit
   2
   3 Required properties:
   4 - compatible: "ti,tps6507x"
   5 - reg: I2C slave address
   6 - regulators: This is the list of child nodes that specify the regulator
   7   initialization data for defined regulators. Not all regulators for the
   8   given device need to be present. The definition for each of these nodes
   9   is defined using the standard binding for regulators found at
  10   Documentation/devicetree/bindings/regulator/regulator.txt.
  11   The regulator is matched with the regulator-compatible.
  12
  13   The valid regulator-compatible values are:
  14   tps6507x: vdcdc1, vdcdc2, vdcdc3, vldo1, vldo2
  15 - xxx-supply: Input voltage supply regulator.
  16   These entries are required if regulators are enabled for a device.
  17   Missing of these properties can cause the regulator registration
  18   fails.
  19   If some of input supply is powered through battery or always-on
  20   supply then also it is require to have these parameters with proper
  21   node handle of always on power supply.
  22   tps6507x:
  23        vindcdc1_2-supply: VDCDC1 and VDCDC2 input.
  24        vindcdc3-supply  : VDCDC3 input.
  25        vldo1_2-supply   : VLDO1 and VLDO2 input.
  26
  27 Regulator Optional properties:
  28 - defdcdc_default: It's property of DCDC2 and DCDC3 regulators.
  29                         0: If defdcdc pin of DCDC2/DCDC3 is pulled to GND.
  30                         1: If defdcdc pin of DCDC2/DCDC3 is driven HIGH.
  31   If this property is not defined, it defaults to 0 (not enabled).
  32
  33 Example:
  34
  35         pmu: tps6507x@48 {
  36                 compatible = "ti,tps6507x";
  37                 reg = <0x48>;
  38
  39                 vindcdc1_2-supply = <&vbat>;
  40                 vindcdc3-supply = <...>;
  41                 vinldo1_2-supply = <...>;
  42
  43                 regulators {
  44                         #address-cells = <1>;
  45                         #size-cells = <0>;
  46
  47                         vdcdc1_reg: regulator@0 {
  48                                 regulator-compatible = "VDCDC1";
  49                                 reg = <0>;
  50                                 regulator-min-microvolt = <3150000>;
  51                                 regulator-max-microvolt = <3450000>;
  52                                 regulator-always-on;
  53                                 regulator-boot-on;
  54                         };
  55                         vdcdc2_reg: regulator@1 {
  56                                 regulator-compatible = "VDCDC2";
  57                                 reg = <1>;
  58                                 regulator-min-microvolt = <1710000>;
  59                                 regulator-max-microvolt = <3450000>;
  60                                 regulator-always-on;
  61                                 regulator-boot-on;
  62                                 defdcdc_default = <1>;
  63                         };
  64                         vdcdc3_reg: regulator@2 {
  65                                 regulator-compatible = "VDCDC3";
  66                                 reg = <2>;
  67                                 regulator-min-microvolt = <950000>
  68                                 regulator-max-microvolt = <1350000>;
  69                                 regulator-always-on;
  70                                 regulator-boot-on;
  71                                 defdcdc_default = <1>;
  72                         };
  73                         ldo1_reg: regulator@3 {
  74                                 regulator-compatible = "LDO1";
  75                                 reg = <3>;
  76                                 regulator-min-microvolt = <1710000>;
  77                                 regulator-max-microvolt = <1890000>;
  78                                 regulator-always-on;
  79                                 regulator-boot-on;
  80                         };
  81                         ldo2_reg: regulator@4 {
  82                                 regulator-compatible = "LDO2";
  83                                 reg = <4>;
  84                                 regulator-min-microvolt = <1140000>;
  85                                 regulator-max-microvolt = <1320000>;
  86                                 regulator-always-on;
  87                                 regulator-boot-on;
  88                         };
  89                 };
  90
  91         };