Commit | Line | Data |
---|---|---|
7abf38d6 SR |
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 | }; |