| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | Nintendo Wii (Hollywood) GPIO controller |
| 2 | |
| 3 | Required 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 | |
| 11 | Optional 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 | |
| 18 | Example: |
| 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 | } |