linux/Documentation/devicetree/bindings/regulator/vexpress.txt
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   1Versatile Express voltage regulators
   2------------------------------------
   3
   4Requires node properties:
   5- "compatible" value: "arm,vexpress-volt"
   6- "arm,vexpress-sysreg,func" when controlled via vexpress-sysreg
   7  (see Documentation/devicetree/bindings/arm/vexpress-sysreg.txt
   8  for more details)
   9
  10Required regulator properties:
  11- "regulator-name"
  12- "regulator-always-on"
  13
  14Optional regulator properties:
  15- "regulator-min-microvolt"
  16- "regulator-max-microvolt"
  17
  18See Documentation/devicetree/bindings/regulator/regulator.txt
  19for more details about the regulator properties.
  20
  21When no "regulator-[min|max]-microvolt" properties are defined,
  22the device is treated as fixed (or rather "read-only") regulator.
  23
  24Example:
  25        volt@0 {
  26                compatible = "arm,vexpress-volt";
  27                arm,vexpress-sysreg,func = <2 0>;
  28                regulator-name = "Cores";
  29                regulator-min-microvolt = <800000>;
  30                regulator-max-microvolt = <1050000>;
  31                regulator-always-on;
  32        };
  33