Binding for Qualcomm Atheros AR7xxx/AR9xxx GPIO controller Required properties: - compatible: has to be "qca,-gpio" and one of the following fallbacks: - "qca,ar7100-gpio" - "qca,ar9340-gpio" - reg: Base address and size of the controllers memory area - gpio-controller : Marks the device node as a GPIO controller. - #gpio-cells : Should be two. The first cell is the pin number and the second cell is used to specify optional parameters. - ngpios: Should be set to the number of GPIOs available on the SoC. Optional properties: - interrupts: Interrupt specifier for the controllers interrupt. - interrupt-controller : Identifies the node as an interrupt controller - #interrupt-cells : Specifies the number of cells needed to encode interrupt source, should be 2 Please refer to interrupts.txt in this directory for details of the common Interrupt Controllers bindings used by client devices. Example: gpio@18040000 { compatible = "qca,ar9132-gpio", "qca,ar7100-gpio"; reg = <0x18040000 0x30>; interrupts = <2>; ngpios = <22>; gpio-controller; #gpio-cells = <2>; interrupt-controller; #interrupt-cells = <2>; };