| Tom Rini | 53633a8 | 2024-02-29 12:33:36 -0500 | [diff] [blame] | 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 | |
| 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,omap4-keypad": For controllers compatible with omap4 keypad |
| 17 | controller. |
| 18 | |
| 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 | }; |