ImgTec TZ1090 PDC GPIO Controller Required properties: - compatible: Compatible property value should be "img,tz1090-pdc-gpio". - reg: Physical base address of the controller and length of memory mapped region. This starts at and cover the SOC_GPIO_CONTROL registers. - gpio-controller: Specifies that the node is a gpio controller. - #gpio-cells: Should be 2. The syntax of the gpio specifier used by client nodes should have the following values. <[phandle of the gpio controller node] [PDC gpio number] [gpio flags]> Values for gpio specifier: - GPIO number: a value in the range 0 to 6. - GPIO flags: bit field of flags, as defined in . Only the following flags are supported: GPIO_ACTIVE_HIGH GPIO_ACTIVE_LOW Optional properties: - gpio-ranges: Mapping to pin controller pins (as described in Documentation/devicetree/bindings/gpio/gpio.txt) - interrupts: Individual syswake interrupts (other GPIOs cannot interrupt) Example: pdc_gpios: gpio-controller@02006500 { gpio-controller; #gpio-cells = <2>; compatible = "img,tz1090-pdc-gpio"; reg = <0x02006500 0x100>; interrupt-parent = <&pdc>; interrupts = <8 IRQ_TYPE_NONE>, /* Syswake 0 */ <9 IRQ_TYPE_NONE>, /* Syswake 1 */ <10 IRQ_TYPE_NONE>; /* Syswake 2 */ gpio-ranges = <&pdc_pinctrl 0 0 7>; };