4 - compatible: must be "cypress,cyapa".
5 - reg: I2C address of the chip.
6 - interrupts: interrupt to which the chip is connected (see interrupt
10 - wakeup-source: touchpad can be used as a wakeup source.
11 - pinctrl-names: should be "default" (see pinctrl binding [1]).
12 - pinctrl-0: a phandle pointing to the pin settings for the device (see
14 - vcc-supply: a phandle for the regulator supplying 3.3V power.
16 [0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
17 [1]: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
23 /* Cypress Gen3 touchpad */
25 compatible = "cypress,cyapa";
27 interrupt-parent = <&gpio>;
28 interrupts = <2 IRQ_TYPE_EDGE_FALLING>; /* GPIO 2 */
32 /* Cypress Gen5 and later touchpad */
34 compatible = "cypress,cyapa";
36 interrupt-parent = <&gpio>;
37 interrupts = <2 IRQ_TYPE_EDGE_FALLING>; /* GPIO 2 */