doc/device-tree-bindings/regulator/fixed.txt

   1 Fixed Voltage regulator
   2
   3 Binding:
   4 The binding is done by the property "compatible" - this is different, than for
   5 binding by the node prefix (doc/device-tree-bindings/regulator/regulator.txt).
   6
   7 Required properties:
   8 - compatible: "regulator-fixed"
   9 - regulator-name: this is required by the regulator uclass
  10
  11 Optional properties:
  12 - gpio: GPIO to use for enable control
  13 - startup-delay-us: startup time in microseconds
  14 - regulator constraints (binding info: regulator.txt)
  15
  16 Other kernel-style properties, are currently not used.
  17
  18 Note:
  19 For the regulator constraints, driver expects that:
  20 - regulator-min-microvolt is equal to regulator-max-microvolt
  21 - regulator-min-microamp is equal to regulator-max-microamp
  22
  23 Example:
  24 fixed_regulator@0 {
  25         /* Mandatory */
  26         compatible = "regulator-fixed";
  27         regulator-name = "LED_3.3V";
  28
  29         /* Optional: */
  30         gpio = <&gpc1 0 GPIO_ACTIVE_LOW>;
  31
  32         /* Optional for regulator uclass */
  33         regulator-min-microvolt = <3300000>;
  34         regulator-max-microvolt = <3300000>;
  35         regulator-min-microamp = <15000>;
  36         regulator-max-microamp = <15000>;
  37         regulator-always-on;
  38         regulator-boot-on;
  39 };