1Cypress I2C Touchpad
2
3Required properties:
4- compatible: must be "cypress,cyapa".
5- reg: I2C address of the chip.
6- interrupts: interrupt to which the chip is connected (see interrupt
7	binding[0]).
8
9Optional properties:
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
13	pinctrl binding [1]).
14- vcc-supply: a phandle for the regulator supplying 3.3V power.
15
16[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
17[1]: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
18
19Example:
20	&i2c0 {
21		/* ... */
22
23		/* Cypress Gen3 touchpad */
24		touchpad@67 {
25			compatible = "cypress,cyapa";
26			reg = <0x67>;
27			interrupt-parent = <&gpio>;
28			interrupts = <2 IRQ_TYPE_EDGE_FALLING>;	/* GPIO 2 */
29			wakeup-source;
30		};
31
32		/* Cypress Gen5 and later touchpad */
33		touchpad@24 {
34			compatible = "cypress,cyapa";
35			reg = <0x24>;
36			interrupt-parent = <&gpio>;
37			interrupts = <2 IRQ_TYPE_EDGE_FALLING>;	/* GPIO 2 */
38			wakeup-source;
39		};
40
41		/* ... */
42	};
43