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

   1 Sandbox, PMIC regulators
   2
   3 This device uses two drivers:
   4 - drivers/power/pmic/sandbox.c (as parent I/O device)
   5 - drivers/power/regulator/sandbox.c (for child regulators)
   6
   7 This file describes the binding info for the REGULATOR driver.
   8
   9 First, please read the binding info for the PMIC:
  10 - doc/device-tree-bindings/pmic/sandbox.txt
  11
  12 Required subnodes:
  13 - ldoN { };
  14 - buckN { };
  15
  16 The sandbox PMIC can support: ldo1, ldo2, buck1, buck2.
  17
  18 For each PMIC's regulator subnode, there is one required property:
  19 - regulator-name: used for regulator uclass platform data '.name'
  20
  21 Optional:
  22 - regulator-min-microvolt: minimum allowed Voltage to set
  23 - regulator-max-microvolt: minimum allowed Voltage to set
  24 - regulator-min-microamps: minimum allowed Current limit to set (LDO1/BUCK1)
  25 - regulator-max-microamps: minimum allowed Current limit to set (LDO1/BUCK1)
  26 - regulator-always-on: regulator should be never disabled
  27 - regulator-boot-on: regulator should be enabled by the bootloader
  28
  29 Example PMIC's regulator subnodes:
  30
  31 ldo1 {
  32         regulator-name = "VDD_1.0V";
  33         regulator-min-microvolt = <1000000>;
  34         regulator-max-microvolt = <1200000>;
  35         regulator-min-microamps = <100000>;
  36         regulator-max-microamps = <400000>;
  37         regulator-always-on;
  38 };
  39
  40 buck2 {
  41         regulator-name = "VDD_1.8V";
  42         regulator-min-microvolt = <1800000>;
  43         regulator-max-microvolt = <1800000>;
  44         regulator-boot-on;
  45 };