1APM X-Gene SoC GPIO controller bindings 2 3This is a gpio controller that is part of the flash controller. 4This gpio controller controls a total of 48 gpios. 5 6Required properties: 7- compatible: "apm,xgene-gpio" for X-Gene GPIO controller 8- reg: Physical base address and size of the controller's registers 9- #gpio-cells: Should be two. 10 - first cell is the pin number 11 - second cell is used to specify the gpio polarity: 12 0 = active high 13 1 = active low 14- gpio-controller: Marks the device node as a GPIO controller. 15 16Example: 17 gpio0: gpio0@1701c000 { 18 compatible = "apm,xgene-gpio"; 19 reg = <0x0 0x1701c000 0x0 0x40>; 20 gpio-controller; 21 #gpio-cells = <2>; 22 }; 23