1Cirrus Logic/Wolfson Microelectronics wm831x PMICs 2 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 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 32Optional 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 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