1*4882a593SmuzhiyunCirrus Logic/Wolfson Microelectronics wm831x PMICs 2*4882a593Smuzhiyun 3*4882a593SmuzhiyunSystem PMICs with a wide range of additional features. 4*4882a593Smuzhiyun 5*4882a593SmuzhiyunRequired properties: 6*4882a593Smuzhiyun 7*4882a593Smuzhiyun - compatible : One of the following chip-specific strings: 8*4882a593Smuzhiyun "wlf,wm8310" 9*4882a593Smuzhiyun "wlf,wm8311" 10*4882a593Smuzhiyun "wlf,wm8312" 11*4882a593Smuzhiyun "wlf,wm8320" 12*4882a593Smuzhiyun "wlf,wm8321" 13*4882a593Smuzhiyun "wlf,wm8325" 14*4882a593Smuzhiyun "wlf,wm8326" 15*4882a593Smuzhiyun 16*4882a593Smuzhiyun - reg : I2C slave address when connected using I2C, chip select number 17*4882a593Smuzhiyun when using SPI. 18*4882a593Smuzhiyun 19*4882a593Smuzhiyun - gpio-controller : Indicates this device is a GPIO controller. 20*4882a593Smuzhiyun - #gpio-cells : Must be 2. The first cell is the pin number and the 21*4882a593Smuzhiyun second cell is used to specify optional parameters (currently unused). 22*4882a593Smuzhiyun 23*4882a593Smuzhiyun - interrupts : The interrupt line the IRQ signal for the device is 24*4882a593Smuzhiyun connected to. 25*4882a593Smuzhiyun 26*4882a593Smuzhiyun - interrupt-controller : wm831x devices contain interrupt controllers and 27*4882a593Smuzhiyun may provide interrupt services to other devices. 28*4882a593Smuzhiyun - #interrupt-cells: Must be 2. The first cell is the IRQ number, and the 29*4882a593Smuzhiyun second cell is the flags, encoded as the trigger masks from 30*4882a593Smuzhiyun ../interrupt-controller/interrupts.txt 31*4882a593Smuzhiyun 32*4882a593SmuzhiyunOptional sub-nodes: 33*4882a593Smuzhiyun - phys : Contains a phandle to the USB PHY. 34*4882a593Smuzhiyun - regulators : Contains sub-nodes for each of the regulators supplied by 35*4882a593Smuzhiyun the device. The regulators are bound using their names listed below: 36*4882a593Smuzhiyun 37*4882a593Smuzhiyun dcdc1 : DCDC1 38*4882a593Smuzhiyun dcdc2 : DCDC2 39*4882a593Smuzhiyun dcdc3 : DCDC3 40*4882a593Smuzhiyun dcdc4 : DCDC3 41*4882a593Smuzhiyun isink1 : ISINK1 42*4882a593Smuzhiyun isink2 : ISINK2 43*4882a593Smuzhiyun ldo1 : LDO1 44*4882a593Smuzhiyun ldo2 : LDO2 45*4882a593Smuzhiyun ldo3 : LDO3 46*4882a593Smuzhiyun ldo4 : LDO4 47*4882a593Smuzhiyun ldo5 : LDO5 48*4882a593Smuzhiyun ldo7 : LDO7 49*4882a593Smuzhiyun ldo11 : LDO11 50*4882a593Smuzhiyun 51*4882a593Smuzhiyun The bindings details of each regulator can be found in: 52*4882a593Smuzhiyun ../regulator/regulator.txt 53*4882a593Smuzhiyun 54*4882a593SmuzhiyunExample: 55*4882a593Smuzhiyun 56*4882a593Smuzhiyunwm8310: pmic@36 { 57*4882a593Smuzhiyun compatible = "wlf,wm8310"; 58*4882a593Smuzhiyun reg = <0x36>; 59*4882a593Smuzhiyun 60*4882a593Smuzhiyun gpio-controller; 61*4882a593Smuzhiyun #gpio-cells = <2>; 62*4882a593Smuzhiyun 63*4882a593Smuzhiyun interrupts = <347>; 64*4882a593Smuzhiyun interrupt-parent = <&gic>; 65*4882a593Smuzhiyun 66*4882a593Smuzhiyun interrupt-controller; 67*4882a593Smuzhiyun #interrupt-cells = <2>; 68*4882a593Smuzhiyun 69*4882a593Smuzhiyun regulators { 70*4882a593Smuzhiyun dcdc1: dcdc1 { 71*4882a593Smuzhiyun regulator-name = "DCDC1"; 72*4882a593Smuzhiyun regulator-min-microvolt = <600000>; 73*4882a593Smuzhiyun regulator-max-microvolt = <600000>; 74*4882a593Smuzhiyun }; 75*4882a593Smuzhiyun ldo1: ldo1 { 76*4882a593Smuzhiyun regulator-name = "LDO1"; 77*4882a593Smuzhiyun regulator-min-microvolt = <1700000>; 78*4882a593Smuzhiyun regulator-max-microvolt = <1700000>; 79*4882a593Smuzhiyun }; 80*4882a593Smuzhiyun }; 81*4882a593Smuzhiyun}; 82