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1Nintendo Wii (Hollywood) GPIO controller2 3Required properties:4- compatible: "nintendo,hollywood-gpio"5- reg: Physical base address and length of the controller's registers.6- gpio-controller: Marks the device node as a GPIO controller.7- #gpio-cells: Should be <2>. The first cell is the pin number and the8 second cell is used to specify optional parameters:9 - bit 0 specifies polarity (0 for normal, 1 for inverted).10 11Optional properties:12- ngpios: see Documentation/devicetree/bindings/gpio/gpio.txt13- interrupt-controller: Marks the device node as an interrupt controller.14- #interrupt-cells: Should be two.15- interrupts: Interrupt specifier for the controller's Broadway (PowerPC)16 interrupt.17 18Example:19 20 GPIO: gpio@d8000c0 {21 #gpio-cells = <2>;22 compatible = "nintendo,hollywood-gpio";23 reg = <0x0d8000c0 0x40>;24 gpio-controller;25 ngpios = <24>;26 }27