1Zevio GPIO controller 2 3Required properties: 4- compatible: Should be "lsi,zevio-gpio" 5- reg: Address and length of the register set for the device 6- #gpio-cells: Should be two. The first cell is the pin number and the 7 second cell is used to specify optional parameters (currently unused). 8- gpio-controller: Marks the device node as a GPIO controller. 9 10Example: 11 gpio: gpio@90000000 { 12 compatible = "lsi,zevio-gpio"; 13 reg = <0x90000000 0x1000>; 14 gpio-controller; 15 #gpio-cells = <2>; 16 }; 17