linux/Documentation/devicetree/bindings/regulator/regulator.txt
<<
>>
Prefs
   1Voltage/Current Regulators
   2
   3Optional 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
  15Deprecated properties:
  16- regulator-compatible: If a regulator chip contains multiple
  17  regulators, and if the chip's binding contains a child node that
  18  describes each regulator, then this property indicates which regulator
  19  this child node is intended to configure. If this property is missing,
  20  the node's name will be used instead.
  21
  22Example:
  23
  24        xyzreg: regulator@0 {
  25                regulator-min-microvolt = <1000000>;
  26                regulator-max-microvolt = <2500000>;
  27                regulator-always-on;
  28                vin-supply = <&vin>;
  29        };
  30
  31Regulator Consumers:
  32Consumer nodes can reference one or more of its supplies/
  33regulators using the below bindings.
  34
  35- <name>-supply: phandle to the regulator node
  36
  37These are the same bindings that a regulator in the above
  38example used to reference its own supply, in which case
  39its just seen as a special case of a regulator being a
  40consumer itself.
  41
  42Example of a consumer device node (mmc) referencing two
  43regulators (twl_reg1 and twl_reg2),
  44
  45        twl_reg1: regulator@0 {
  46                ...
  47                ...
  48                ...
  49        };
  50
  51        twl_reg2: regulator@1 {
  52                ...
  53                ...
  54                ...
  55        };
  56
  57        mmc: mmc@0x0 {
  58                ...
  59                ...
  60                vmmc-supply = <&twl_reg1>;
  61                vmmcaux-supply = <&twl_reg2>;
  62        };
  63