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 };
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