Commit | Line | Data |
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13987435 SP |
1 | * TI's Keypad Controller device tree bindings |
2 | ||
3 | TI'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 | ||
1d0b1c74 SG |
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 | ||
13987435 SP |
14 | Required SoC Specific Properties: |
15 | - compatible: should be one of the following | |
16 | - "ti,omap4-keypad": For controllers compatible with omap4 keypad | |
17 | controller. | |
18 | ||
13987435 SP |
19 | Optional Properties specific to linux: |
20 | - linux,keypad-no-autorepeat: do no enable autorepeat feature. | |
21 | ||
22 | Example: | |
23 | keypad@4ae1c000{ | |
24 | compatible = "ti,omap4-keypad"; | |
25 | keypad,num-rows = <2>; | |
26 | keypad,num-columns = <8>; | |
27 | linux,keypad-no-autorepeat; | |
28 | }; |