Commit | Line | Data |
---|---|---|
fc4f3146 DT |
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 | }; |