kernel/Documentation/devicetree/bindings/mfd/88pm860x.txt

   1 * Marvell 88PM860x Power Management IC
   2
   3 Required parent device properties:
   4 - compatible : "marvell,88pm860x"
   5 - reg : the I2C slave address for the 88pm860x chip
   6 - interrupts : IRQ line for the 88pm860x chip
   7 - interrupt-controller: describes the 88pm860x as an interrupt controller (has its own domain)
   8 - #interrupt-cells : should be 1.
   9                 - The cell is the 88pm860x local IRQ number
  10
  11 Optional parent device properties:
  12 - marvell,88pm860x-irq-read-clr: inicates whether interrupt status is cleared by read
  13 - marvell,88pm860x-slave-addr: 88pm860x are two chips solution. <reg> stores the I2C address
  14                                 of one chip, and this property stores the I2C address of
  15                                 another chip.
  16
  17 88pm860x consists of a large and varied group of sub-devices:
  18
  19 Device                   Supply Names    Description
  20 ------                   ------------    -----------
  21 88pm860x-onkey          :               : On key
  22 88pm860x-rtc            :               : RTC
  23 88pm8607                :               : Regulators
  24 88pm860x-backlight      :               : Backlight
  25 88pm860x-led            :               : Led
  26 88pm860x-touch          :               : Touchscreen
  27
  28 Example:
  29
  30         pmic: 88pm860x@34 {
  31                 compatible = "marvell,88pm860x";
  32                 reg = <0x34>;
  33                 interrupts = <4>;
  34                 interrupt-parent = <&intc>;
  35                 interrupt-controller;
  36                 #interrupt-cells = <1>;
  37
  38                 marvell,88pm860x-irq-read-clr;
  39                 marvell,88pm860x-slave-addr = <0x11>;
  40
  41                 regulators {
  42                         BUCK1 {
  43                                 regulator-min-microvolt = <1000000>;
  44                                 regulator-max-microvolt = <1500000>;
  45                                 regulator-boot-on;
  46                                 regulator-always-on;
  47                         };
  48                         LDO1 {
  49                                 regulator-min-microvolt = <1200000>;
  50                                 regulator-max-microvolt = <2800000>;
  51                                 regulator-boot-on;
  52                                 regulator-always-on;
  53                         };
  54                 };
  55                 rtc {
  56                         marvell,88pm860x-vrtc = <1>;
  57                 };
  58                 touch {
  59                         marvell,88pm860x-gpadc-prebias = <1>;
  60                         marvell,88pm860x-gpadc-slot-cycle = <1>;
  61                         marvell,88pm860x-tsi-prebias = <6>;
  62                         marvell,88pm860x-pen-prebias = <16>;
  63                         marvell,88pm860x-pen-prechg = <2>;
  64                         marvell,88pm860x-resistor-X = <300>;
  65                 };
  66                 backlights {
  67                         backlight-0 {
  68                                 marvell,88pm860x-iset = <4>;
  69                                 marvell,88pm860x-pwm = <3>;
  70                         };
  71                         backlight-2 {
  72                         };
  73                 };
  74                 leds {
  75                         led0-red {
  76                                 marvell,88pm860x-iset = <12>;
  77                         };
  78                         led0-green {
  79                                 marvell,88pm860x-iset = <12>;
  80                         };
  81                         led0-blue {
  82                                 marvell,88pm860x-iset = <12>;
  83                         };
  84                 };
  85         };