wm831x.txt

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    1 Cirrus Logic/Wolfson Microelectronics wm831x PMICs
    2 
    3 System PMICs with a wide range of additional features.
    4 
    5 Required properties:
    6 
    7   - compatible : One of the following chip-specific strings:
    8         "wlf,wm8310"
    9         "wlf,wm8311"
   10         "wlf,wm8312"
   11         "wlf,wm8320"
   12         "wlf,wm8321"
   13         "wlf,wm8325"
   14         "wlf,wm8326"
   15 
   16   - reg : I2C slave address when connected using I2C, chip select number
   17     when using SPI.
   18 
   19   - gpio-controller : Indicates this device is a GPIO controller.
   20   - #gpio-cells : Must be 2. The first cell is the pin number and the
   21     second cell is used to specify optional parameters (currently unused).
   22 
   23   - interrupts : The interrupt line the IRQ signal for the device is
   24     connected to.
   25 
   26   - interrupt-controller : wm831x devices contain interrupt controllers and
   27     may provide interrupt services to other devices.
   28   - #interrupt-cells: Must be 2. The first cell is the IRQ number, and the
   29     second cell is the flags, encoded as the trigger masks from
   30     ../interrupt-controller/interrupts.txt
   31 
   32 Optional sub-nodes:
   33   - phys : Contains a phandle to the USB PHY.
   34   - regulators : Contains sub-nodes for each of the regulators supplied by
   35     the device. The regulators are bound using their names listed below:
   36 
   37     dcdc1 : DCDC1
   38     dcdc2 : DCDC2
   39     dcdc3 : DCDC3
   40     dcdc4 : DCDC3
   41     isink1 : ISINK1
   42     isink2 : ISINK2
   43     ldo1 : LDO1
   44     ldo2 : LDO2
   45     ldo3 : LDO3
   46     ldo4 : LDO4
   47     ldo5 : LDO5
   48     ldo7 : LDO7
   49     ldo11 : LDO11
   50 
   51     The bindings details of each regulator can be found in:
   52     ../regulator/regulator.txt
   53 
   54 Example:
   55 
   56 wm8310: pmic@36 {
   57         compatible = "wlf,wm8310";
   58         reg = <0x36>;
   59 
   60         gpio-controller;
   61         #gpio-cells = <2>;
   62 
   63         interrupts = <347>;
   64         interrupt-parent = <&gic>;
   65 
   66         interrupt-controller;
   67         #interrupt-cells = <2>;
   68 
   69         regulators {
   70                 dcdc1: dcdc1 {
   71                         regulator-name = "DCDC1";
   72                         regulator-min-microvolt = <600000>;
   73                         regulator-max-microvolt = <600000>;
   74                 };
   75                 ldo1: ldo1 {
   76                         regulator-name = "LDO1";
   77                         regulator-min-microvolt = <1700000>;
   78                         regulator-max-microvolt = <1700000>;
   79                 };
   80         };
   81 };

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sys/contrib/device-tree/Bindings/mfd/wm831x.txt