APM X-Gene SoC GPIO controller bindings This is a gpio controller that is part of the flash controller. This gpio controller controls a total of 48 gpios. Required properties: - compatible: "apm,xgene-gpio" for X-Gene GPIO controller - reg: Physical base address and size of the controller's registers - #gpio-cells: Should be two. - first cell is the pin number - second cell is used to specify the gpio polarity: 0 = active high 1 = active low - gpio-controller: Marks the device node as a GPIO controller. Example: gpio0: gpio0@1701c000 { compatible = "apm,xgene-gpio"; reg = <0x0 0x1701c000 0x0 0x40>; gpio-controller; #gpio-cells = <2>; };