kernel/Documentation/devicetree/bindings/mfd/max8925.txt

   1 * Maxim max8925 Power Management IC
   2
   3 Required parent device properties:
   4 - compatible : "maxim,max8925"
   5 - reg : the I2C slave address for the max8925 chip
   6 - interrupts : IRQ line for the max8925 chip
   7 - interrupt-controller: describes the max8925 as an interrupt
   8   controller (has its own domain)
   9 - #interrupt-cells : should be 1.
  10         - The cell is the max8925 local IRQ number
  11
  12 Optional parent device properties:
  13 - maxim,tsc-irq: there are 2 IRQ lines for max8925, one is indicated in
  14   interrupts property, the other is indicated here.
  15
  16 max8925 consists of a large and varied group of sub-devices:
  17
  18 Device                   Supply Names    Description
  19 ------                   ------------    -----------
  20 max8925-onkey           :               : On key
  21 max8925-rtc             :               : RTC
  22 max8925-regulator       :               : Regulators
  23 max8925-backlight       :               : Backlight
  24 max8925-touch           :               : Touchscreen
  25 max8925-power           :               : Charger
  26
  27 Example:
  28
  29         pmic: max8925@3c {
  30                 compatible = "maxim,max8925";
  31                 reg = <0x3c>;
  32                 interrupts = <1>;
  33                 interrupt-parent = <&intcmux4>;
  34                 interrupt-controller;
  35                 #interrupt-cells = <1>;
  36                 maxim,tsc-irq = <0>;
  37
  38                 regulators {
  39                         SDV1 {
  40                                 regulator-min-microvolt = <637500>;
  41                                 regulator-max-microvolt = <1425000>;
  42                                 regulator-boot-on;
  43                                 regulator-always-on;
  44                         };
  45
  46                         LDO1 {
  47                                 regulator-min-microvolt = <750000>;
  48                                 regulator-max-microvolt = <3900000>;
  49                                 regulator-boot-on;
  50                                 regulator-always-on;
  51                         };
  52
  53                 };
  54                 backlight {
  55                         maxim,max8925-dual-string = <0>;
  56                 };
  57                 charger {
  58                         batt-detect = <0>;
  59                         topoff-threshold = <1>;
  60                         fast-charge = <7>;
  61                         no-temp-support = <0>;
  62                         no-insert-detect = <0>;
  63                 };
  64         };