Documentation/devicetree/bindings/input/omap-keypad.txt

   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 Required SoC Specific Properties:
  10 - compatible: should be one of the following
  11    - "ti,omap4-keypad": For controllers compatible with omap4 keypad
  12       controller.
  13
  14 Required Board Specific Properties, in addition to those specified by
  15 the shared matrix-keyboard bindings:
  16 - keypad,num-rows: Number of row lines connected to the keypad
  17   controller.
  18
  19 - keypad,num-columns: Number of column lines connected to the
  20   keypad controller.
  21
  22 Optional Properties specific to linux:
  23 - linux,keypad-no-autorepeat: do no enable autorepeat feature.
  24
  25 Example:
  26         keypad@4ae1c000{
  27                 compatible = "ti,omap4-keypad";
  28                 keypad,num-rows = <2>;
  29                 keypad,num-columns = <8>;
  30                 linux,keypad-no-autorepeat;
  31         };