xref: /openbmc/linux/Documentation/devicetree/bindings/gpio/nintendo,hollywood-gpio.txt (revision e33bbe69149b802c0c77bfb822685772f85388ca) 
1Nintendo Wii (Hollywood) GPIO controller
2
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 the
8  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.txt
13- 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- interrupt-parent: phandle of the parent interrupt controller.
18
19Example:
20
21	GPIO: gpio@d8000c0 {
22		#gpio-cells = <2>;
23		compatible = "nintendo,hollywood-gpio";
24		reg = <0x0d8000c0 0x40>;
25		gpio-controller;
26		ngpios = <24>;
27	}
28