Documentation/devicetree/bindings/input/tca8418_keypad.txt

   1 This binding is based on the matrix-keymap binding with the following
   2 changes:
   3
   4 keypad,num-rows and keypad,num-columns are required.
   5
   6 Required properties:
   7 - compatible: "ti,tca8418"
   8 - reg: the I2C address
   9 - interrupts: IRQ line number, should trigger on falling edge
  10 - linux,keymap: Keys definitions, see keypad-matrix.