1twl4030 GPIO controller bindings 2 3Required properties: 4- compatible: 5 - "ti,twl4030-gpio" for twl4030 GPIO controller 6- #gpio-cells : Should be two. 7 - first cell is the pin number 8 - second cell is used to specify optional parameters (unused) 9- gpio-controller : Marks the device node as a GPIO controller. 10- #interrupt-cells : Should be 2. 11- interrupt-controller: Mark the device node as an interrupt controller 12 The first cell is the GPIO number. 13 The second cell is not used. 14 15Example: 16 17twl_gpio: gpio { 18 compatible = "ti,twl4030-gpio"; 19 #gpio-cells = <2>; 20 gpio-controller; 21 #interrupt-cells = <2>; 22 interrupt-controller; 23}; 24