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 - interrupt-parent : The parent interrupt controller. 26 27 - interrupt-controller : wm831x devices contain interrupt controllers and 28 may provide interrupt services to other devices. 29 - #interrupt-cells: Must be 2. The first cell is the IRQ number, and the 30 second cell is the flags, encoded as the trigger masks from 31 ../interrupt-controller/interrupts.txt 32 33Optional sub-nodes: 34 - phys : Contains a phandle to the USB PHY. 35 - regulators : Contains sub-nodes for each of the regulators supplied by 36 the device. The regulators are bound using their names listed below: 37 38 dcdc1 : DCDC1 39 dcdc2 : DCDC2 40 dcdc3 : DCDC3 41 dcdc4 : DCDC3 42 isink1 : ISINK1 43 isink2 : ISINK2 44 ldo1 : LDO1 45 ldo2 : LDO2 46 ldo3 : LDO3 47 ldo4 : LDO4 48 ldo5 : LDO5 49 ldo7 : LDO7 50 ldo11 : LDO11 51 52 The bindings details of each regulator can be found in: 53 ../regulator/regulator.txt 54 55Example: 56 57wm8310: pmic@36 { 58 compatible = "wlf,wm8310"; 59 reg = <0x36>; 60 61 gpio-controller; 62 #gpio-cells = <2>; 63 64 interrupts = <347>; 65 interrupt-parent = <&gic>; 66 67 interrupt-controller; 68 #interrupt-cells = <2>; 69 70 regulators { 71 dcdc1: dcdc1 { 72 regulator-name = "DCDC1"; 73 regulator-min-microvolt = <600000>; 74 regulator-max-microvolt = <600000>; 75 }; 76 ldo1: ldo1 { 77 regulator-name = "LDO1"; 78 regulator-min-microvolt = <1700000>; 79 regulator-max-microvolt = <1700000>; 80 }; 81 }; 82}; 83