Documentation/devicetree/bindings/mfd/st,stpmic1.txt

   1 * STMicroelectronics STPMIC1 Power Management IC
   2
   3 Required properties:
   4 - compatible:           : "st,stpmic1"
   5 - reg:                  : The I2C slave address for the STPMIC1 chip.
   6 - interrupts:           : The interrupt line the device is connected to.
   7 - #interrupt-cells:     : Should be 1.
   8 - interrupt-controller: : Marks the device node as an interrupt controller.
   9                             Interrupt numbers are defined at
  10                             dt-bindings/mfd/st,stpmic1.h.
  11
  12 STPMIC1 consists in a varied group of sub-devices.
  13 Each sub-device binding is be described in own documentation file.
  14
  15 Device                   Description
  16 ------                  ------------
  17 st,stpmic1-onkey        : Power on key, see ../input/st,stpmic1-onkey.txt
  18 st,stpmic1-regulators   : Regulators, see ../regulator/st,stpmic1-regulator.txt
  19 st,stpmic1-wdt          : Watchdog, see ../watchdog/st,stpmic1-wdt.txt
  20
  21 Example:
  22
  23 #include <dt-bindings/mfd/st,stpmic1.h>
  24
  25 pmic: pmic@33 {
  26         compatible = "st,stpmic1";
  27         reg = <0x33>;
  28         interrupt-parent = <&gpioa>;
  29         interrupts = <0 2>;
  30
  31         interrupt-controller;
  32         #interrupt-cells = <2>;
  33
  34         onkey {
  35                 compatible = "st,stpmic1-onkey";
  36                 interrupts = <IT_PONKEY_F 0>,<IT_PONKEY_R 1>;
  37                 interrupt-names = "onkey-falling", "onkey-rising";
  38                 power-off-time-sec = <10>;
  39         };
  40
  41         watchdog {
  42                 compatible = "st,stpmic1-wdt";
  43         };
  44
  45         regulators {
  46                 compatible = "st,stpmic1-regulators";
  47
  48                 vdd_core: buck1 {
  49                         regulator-name = "vdd_core";
  50                         regulator-boot-on;
  51                         regulator-min-microvolt = <700000>;
  52                         regulator-max-microvolt = <1200000>;
  53                 };
  54                 vdd: buck3 {
  55                         regulator-name = "vdd";
  56                         regulator-min-microvolt = <3300000>;
  57                         regulator-max-microvolt = <3300000>;
  58                         regulator-boot-on;
  59                         regulator-pull-down;
  60                 };
  61         };