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Documentation / devicetree / bindings / input / twl4030-keypad.txt




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Based on kernel version 3.16. Page generated on 2014-08-06 21:37 EST.

1	* TWL4030's Keypad Controller device tree bindings
2	
3	TWL4030's Keypad controller is used to interface a SoC with a matrix-type
4	keypad device. The keypad controller supports multiple row and column lines.
5	A key can be placed at each intersection of a unique row and a unique column.
6	The keypad controller can sense a key-press and key-release and report the
7	event using a interrupt to the cpu.
8	
9	This binding is based on the matrix-keymap binding with the following
10	changes:
11	
12	 * keypad,num-rows and keypad,num-columns are required.
13	
14	Required SoC Specific Properties:
15	- compatible: should be one of the following
16	   - "ti,twl4030-keypad": For controllers compatible with twl4030 keypad
17	      controller.
18	- interrupt: should be one of the following
19	   - <1>: For controllers compatible with twl4030 keypad controller.
20	
21	Example:
22		twl_keypad: keypad {
23			compatible = "ti,twl4030-keypad";
24			interrupts = <1>;
25			keypad,num-rows = <8>;
26			keypad,num-columns = <8>;
27		};
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