Documentation/devicetree/bindings/regulator/regulator.txt

   1 Voltage/Current Regulators
   2
   3 Optional properties:
   4 - regulator-name: A string used as a descriptive name for regulator outputs
   5 - regulator-min-microvolt: smallest voltage consumers may set
   6 - regulator-max-microvolt: largest voltage consumers may set
   7 - regulator-microvolt-offset: Offset applied to voltages to compensate for voltage drops
   8 - regulator-min-microamp: smallest current consumers may set
   9 - regulator-max-microamp: largest current consumers may set
  10 - regulator-always-on: boolean, regulator should never be disabled
  11 - regulator-boot-on: bootloader/firmware enabled regulator
  12 - <name>-supply: phandle to the parent supply/regulator node
  13 - regulator-ramp-delay: ramp delay for regulator(in uV/uS)
  14 - regulator-compatible: If a regulator chip contains multiple
  15   regulators, and if the chip's binding contains a child node that
  16   describes each regulator, then this property indicates which regulator
  17   this child node is intended to configure.
  18
  19 Example:
  20
  21         xyzreg: regulator@0 {
  22                 regulator-min-microvolt = <1000000>;
  23                 regulator-max-microvolt = <2500000>;
  24                 regulator-always-on;
  25                 vin-supply = <&vin>;
  26         };
  27
  28 Regulator Consumers:
  29 Consumer nodes can reference one or more of its supplies/
  30 regulators using the below bindings.
  31
  32 - <name>-supply: phandle to the regulator node
  33
  34 These are the same bindings that a regulator in the above
  35 example used to reference its own supply, in which case
  36 its just seen as a special case of a regulator being a
  37 consumer itself.
  38
  39 Example of a consumer device node (mmc) referencing two
  40 regulators (twl_reg1 and twl_reg2),
  41
  42         twl_reg1: regulator@0 {
  43                 ...
  44                 ...
  45                 ...
  46         };
  47
  48         twl_reg2: regulator@1 {
  49                 ...
  50                 ...
  51                 ...
  52         };
  53
  54         mmc: mmc@0x0 {
  55                 ...
  56                 ...
  57                 vmmc-supply = <&twl_reg1>;
  58                 vmmcaux-supply = <&twl_reg2>;
  59         };