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Documentation / devicetree / bindings / input / pxa27x-keypad.txt




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

1	* Marvell PXA Keypad controller
2	
3	Required Properties
4	- compatible : should be "marvell,pxa27x-keypad"
5	- reg : Address and length of the register set for the device
6	- interrupts : The interrupt for the keypad controller
7	- marvell,debounce-interval : How long time the key will be
8	  recognized when it is pressed. It is a u32 value, and bit[31:16]
9	  is debounce interval for direct key and bit[15:0] is debounce
10	  interval for matrix key. The value is in binary number of 2ms
11	
12	Optional Properties For Matrix Keyes
13	Please refer to matrix-keymap.txt
14	
15	Optional Properties for Direct Keyes
16	- marvell,direct-key-count : How many direct keyes are used.
17	- marvell,direct-key-mask : The mask indicates which keyes
18	  are used. If bit[X] of the mask is set, the direct key X
19	  is used.
20	- marvell,direct-key-low-active : Direct key status register
21	  tells the level of pins that connects to the direct keyes.
22	  When this property is set, it means that when the pin level
23	  is low, the key is pressed(active).
24	- marvell,direct-key-map : It is a u16 array. Each item indicates
25	  the linux key-code for the direct key.
26	
27	Optional Properties For Rotary
28	- marvell,rotary0 : It is a u32 value. Bit[31:16] is the
29	  linux key-code for rotary up. Bit[15:0] is the linux key-code
30	  for rotary down. It is for rotary 0.
31	- marvell,rotary1 : Same as marvell,rotary0. It is for rotary 1.
32	- marvell,rotary-rel-key : When rotary is used for relative axes
33	  in the device, the value indicates the key-code for relative
34	  axes measurement in the device. It is a u32 value. Bit[31:16]
35	  is for rotary 1, and Bit[15:0] is for rotary 0.
36	
37	Examples:
38		keypad: keypad@d4012000 {
39			keypad,num-rows = <3>;
40			keypad,num-columns = <5>;
41			linux,keymap = <0x0000000e	/* KEY_BACKSPACE */
42					0x0001006b	/* KEY_END */
43					0x00020061	/* KEY_RIGHTCTRL */
44					0x0003000b	/* KEY_0 */
45					0x00040002	/* KEY_1 */
46					0x0100008b	/* KEY_MENU */
47					0x01010066	/* KEY_HOME */
48					0x010200e7	/* KEY_SEND */
49					0x01030009	/* KEY_8 */
50					0x0104000a	/* KEY_9 */
51					0x02000160	/* KEY_OK */
52					0x02010003	/* KEY_2 */
53					0x02020004	/* KEY_3 */
54					0x02030005	/* KEY_4 */
55					0x02040006>;	/* KEY_5 */
56			marvell,rotary0 = <0x006c0067>;	/* KEY_UP & KEY_DOWN */
57			marvell,direct-key-count = <1>;
58			marvell,direct-key-map = <0x001c>;
59			marvell,debounce-interval = <0x001e001e>;
60		};
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