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Documentation / devicetree / bindings / input / ti,nspire-keypad.txt




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Based on kernel version 3.15.4. Page generated on 2014-07-07 09:00 EST.

1	TI-NSPIRE Keypad
2	
3	Required properties:
4	- compatible: Compatible property value should be "ti,nspire-keypad".
5	
6	- reg: Physical base address of the peripheral and length of memory mapped
7	  region.
8	
9	- interrupts: The interrupt number for the peripheral.
10	
11	- scan-interval: How often to scan in us. Based on a APB speed of 33MHz, the
12		maximum and minimum delay time is ~2000us and ~500us respectively
13	
14	- row-delay: How long to wait before scanning each row.
15	
16	- clocks: The clock this peripheral is attached to.
17	
18	- linux,keymap: The keymap to use
19		(see Documentation/devicetree/bindings/input/matrix-keymap.txt)
20	
21	Optional properties:
22	- active-low: Specify that the keypad is active low (i.e. logical low signifies
23		a key press).
24	
25	Example:
26	
27	input {
28		compatible = "ti,nspire-keypad";
29		reg = <0x900E0000 0x1000>;
30		interrupts = <16>;
31	
32		scan-interval = <1000>;
33		row-delay = <200>;
34	
35		clocks = <&apb_pclk>;
36	
37		linux,keymap = <
38		0x0000001c	0x0001001c	0x00040039
39		0x0005002c	0x00060015	0x0007000b
40		0x0008000f	0x0100002d	0x01010011
41		0x0102002f	0x01030004	0x01040016
42		0x01050014	0x0106001f	0x01070002
43		0x010a006a	0x02000013	0x02010010
44		0x02020019	0x02030007	0x02040018
45		0x02050031	0x02060032	0x02070005
46		0x02080028	0x0209006c	0x03000026
47		0x03010025	0x03020024	0x0303000a
48		0x03040017	0x03050023	0x03060022
49		0x03070008	0x03080035	0x03090069
50		0x04000021	0x04010012	0x04020020
51		0x0404002e	0x04050030	0x0406001e
52		0x0407000d	0x04080037	0x04090067
53		0x05010038	0x0502000c	0x0503001b
54		0x05040034	0x0505001a	0x05060006
55		0x05080027	0x0509000e	0x050a006f
56		0x0600002b	0x0602004e	0x06030068
57		0x06040003	0x0605006d	0x06060009
58		0x06070001	0x0609000f	0x0708002a
59		0x0709001d	0x070a0033	>;
60	};
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