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Documentation / devicetree / bindings / gpio / gpio-omap.txt




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Based on kernel version 3.9. Page generated on 2013-05-02 22:58 EST.

1	OMAP GPIO controller bindings
2	
3	Required properties:
4	- compatible:
5	  - "ti,omap2-gpio" for OMAP2 controllers
6	  - "ti,omap3-gpio" for OMAP3 controllers
7	  - "ti,omap4-gpio" for OMAP4 controllers
8	- #gpio-cells : Should be two.
9	  - first cell is the pin number
10	  - second cell is used to specify optional parameters (unused)
11	- gpio-controller : Marks the device node as a GPIO controller.
12	- #interrupt-cells : Should be 2.
13	- interrupt-controller: Mark the device node as an interrupt controller
14	  The first cell is the GPIO number.
15	  The second cell is used to specify flags:
16	    bits[3:0] trigger type and level flags:
17	      1 = low-to-high edge triggered.
18	      2 = high-to-low edge triggered.
19	      4 = active high level-sensitive.
20	      8 = active low level-sensitive.
21	
22	OMAP specific properties:
23	- ti,hwmods: Name of the hwmod associated to the GPIO:
24	  "gpio<X>", <X> being the 1-based instance number from the HW spec
25	
26	
27	Example:
28	
29	gpio4: gpio4 {
30	    compatible = "ti,omap4-gpio";
31	    ti,hwmods = "gpio4";
32	    #gpio-cells = <2>;
33	    gpio-controller;
34	    #interrupt-cells = <2>;
35	    interrupt-controller;
36	};
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