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1Cirrus Logic/Wolfson Microelectronics wm831x PMICs2 3System PMICs with a wide range of additional features.4 5Required 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 number17 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 the21 second cell is used to specify optional parameters (currently unused).22 23 - interrupts : The interrupt line the IRQ signal for the device is24 connected to.25 26 - interrupt-controller : wm831x devices contain interrupt controllers and27 may provide interrupt services to other devices.28 - #interrupt-cells: Must be 2. The first cell is the IRQ number, and the29 second cell is the flags, encoded as the trigger masks from30 ../interrupt-controller/interrupts.txt31 32Optional sub-nodes:33 - phys : Contains a phandle to the USB PHY.34 - regulators : Contains sub-nodes for each of the regulators supplied by35 the device. The regulators are bound using their names listed below:36 37 dcdc1 : DCDC138 dcdc2 : DCDC239 dcdc3 : DCDC340 dcdc4 : DCDC341 isink1 : ISINK142 isink2 : ISINK243 ldo1 : LDO144 ldo2 : LDO245 ldo3 : LDO346 ldo4 : LDO447 ldo5 : LDO548 ldo7 : LDO749 ldo11 : LDO1150 51 The bindings details of each regulator can be found in:52 ../regulator/regulator.txt53 54Example:55 56wm8310: 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};82