linux/Documentation/devicetree/bindings/input/spear-keyboard.txt
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   1* SPEAr keyboard controller
   2
   3Required properties:
   4- compatible: "st,spear300-kbd"
   5
   6Optional properties, in addition to those specified by the shared
   7matrix-keyboard bindings:
   8- autorepeat: bool: enables key autorepeat
   9- st,mode: keyboard mode: 0 - 9x9, 1 - 6x6, 2 - 2x2
  10
  11Example:
  12
  13kbd@fc400000 {
  14        compatible = "st,spear300-kbd";
  15        reg = <0xfc400000 0x100>;
  16        linux,keymap = < 0x00030012
  17                         0x0102003a >;
  18        autorepeat;
  19        st,mode = <0>;
  20};
  21