Documentation/devicetree/bindings/input/cypress,tm2-touchkey.txt

   1 Samsung tm2-touchkey
   2
   3 Required properties:
   4 - compatible:
   5     * "cypress,tm2-touchkey" - for the touchkey found on the tm2 board
   6     * "cypress,midas-touchkey" - for the touchkey found on midas boards
   7     * "cypress,aries-touchkey" - for the touchkey found on aries boards
   8 - reg: I2C address of the chip.
   9 - interrupt-parent: a phandle for the interrupt controller (see interrupt
  10         binding[0]).
  11 - interrupts: interrupt to which the chip is connected (see interrupt
  12         binding[0]).
  13 - vcc-supply : internal regulator output. 1.8V
  14 - vdd-supply : power supply for IC 3.3V
  15
  16 Optional properties:
  17 - linux,keycodes: array of keycodes (max 4), default KEY_PHONE and KEY_BACK
  18
  19 [0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
  20
  21 Example:
  22         &i2c0 {
  23                 /* ... */
  24
  25                 touchkey@20 {
  26                         compatible = "cypress,tm2-touchkey";
  27                         reg = <0x20>;
  28                         interrupt-parent = <&gpa3>;
  29                         interrupts = <2 IRQ_TYPE_EDGE_FALLING>;
  30                         vcc-supply=<&ldo32_reg>;
  31                         vdd-supply=<&ldo33_reg>;
  32                         linux,keycodes = <KEY_PHONE KEY_BACK>;
  33                 };
  34         };