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Diffstat (limited to 'Documentation/devicetree/bindings/gpio/nintendo,hollywood-gpio.txt')
| -rw-r--r-- | Documentation/devicetree/bindings/gpio/nintendo,hollywood-gpio.txt | 26 |
1 files changed, 26 insertions, 0 deletions
diff --git a/Documentation/devicetree/bindings/gpio/nintendo,hollywood-gpio.txt b/Documentation/devicetree/bindings/gpio/nintendo,hollywood-gpio.txt new file mode 100644 index 0000000000..df63da4630 --- /dev/null +++ b/Documentation/devicetree/bindings/gpio/nintendo,hollywood-gpio.txt @@ -0,0 +1,26 @@ +Nintendo Wii (Hollywood) GPIO controller + +Required properties: +- compatible: "nintendo,hollywood-gpio" +- reg: Physical base address and length of the controller's registers. +- gpio-controller: Marks the device node as a GPIO controller. +- #gpio-cells: Should be <2>. The first cell is the pin number and the + second cell is used to specify optional parameters: + - bit 0 specifies polarity (0 for normal, 1 for inverted). + +Optional properties: +- ngpios: see Documentation/devicetree/bindings/gpio/gpio.txt +- interrupt-controller: Marks the device node as an interrupt controller. +- #interrupt-cells: Should be two. +- interrupts: Interrupt specifier for the controller's Broadway (PowerPC) + interrupt. + +Example: + + GPIO: gpio@d8000c0 { + #gpio-cells = <2>; + compatible = "nintendo,hollywood-gpio"; + reg = <0x0d8000c0 0x40>; + gpio-controller; + ngpios = <24>; + } |