[deliverable/linux.git] / Documentation / devicetree / bindings / gpio / gpio-etraxfs.txt

Axis ETRAX FS General I/O controller bindings

Required properties:

- compatible: one of:
  - "axis,etraxfs-gio"
  - "axis,artpec3-gio"
- reg: Physical base address and length of the controller's registers.
- #gpio-cells: Should be 3
  - The first cell is the gpio offset number.
  - The second cell is reserved and is currently unused.
  - The third cell is the port number (hex).
- gpio-controller: Marks the device node as a GPIO controller.

Example:

	gio: gpio@b001a000 {
		compatible = "axis,etraxfs-gio";
		reg = <0xb001a000 0x1000>;
		gpio-controller;
		#gpio-cells = <3>;
	};
Commit	Line	Data
d342571e RV	1	Axis ETRAX FS General I/O controller bindings
	2
	3	Required properties:
	4
d705073c	5	- compatible: one of:
d342571e	6	- "axis,etraxfs-gio"
d705073c	7	- "axis,artpec3-gio"
d342571e RV	8	- reg: Physical base address and length of the controller's registers.
	9	- #gpio-cells: Should be 3
	10	- The first cell is the gpio offset number.
	11	- The second cell is reserved and is currently unused.
	12	- The third cell is the port number (hex).
	13	- gpio-controller: Marks the device node as a GPIO controller.
	14
	15	Example:
	16
	17	gio: gpio@b001a000 {
	18	compatible = "axis,etraxfs-gio";
	19	reg = <0xb001a000 0x1000>;
	20	gpio-controller;
	21	#gpio-cells = <3>;
	22	};