| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 1 | Cavium ThunderX/OCTEON-TX GPIO controller bindings |
| 2 | |
| 3 | Required Properties: |
| 4 | - reg: The controller bus address. |
| 5 | - gpio-controller: Marks the device node as a GPIO controller. |
| 6 | - #gpio-cells: Must be 2. |
| 7 | - First cell is the GPIO pin number relative to the controller. |
| 8 | - Second cell is a standard generic flag bitfield as described in gpio.txt. |
| 9 | |
| 10 | Optional Properties: |
| 11 | - compatible: "cavium,thunder-8890-gpio", unused as PCI driver binding is used. |
| 12 | - interrupt-controller: Marks the device node as an interrupt controller. |
| 13 | - #interrupt-cells: Must be present and have value of 2 if |
| 14 | "interrupt-controller" is present. |
| 15 | - First cell is the GPIO pin number relative to the controller. |
| 16 | - Second cell is triggering flags as defined in interrupts.txt. |
| 17 | |
| 18 | Example: |
| 19 | |
| 20 | gpio_6_0: gpio@6,0 { |
| 21 | compatible = "cavium,thunder-8890-gpio"; |
| 22 | reg = <0x3000 0 0 0 0>; /* DEVFN = 0x30 (6:0) */ |
| 23 | gpio-controller; |
| 24 | #gpio-cells = <2>; |
| 25 | interrupt-controller; |
| 26 | #interrupt-cells = <2>; |
| 27 | }; |