1Cypress I2C Touchpad
2
3Required properties:
4- compatible: must be "cypress,cyapa".
5- reg: I2C address of the chip.
6- interrupt-parent: a phandle for the interrupt controller (see interrupt
7	binding[0]).
8- interrupts: interrupt to which the chip is connected (see interrupt
9	binding[0]).
10
11Optional properties:
12- wakeup-source: touchpad can be used as a wakeup source.
13- pinctrl-names: should be "default" (see pinctrl binding [1]).
14- pinctrl-0: a phandle pointing to the pin settings for the device (see
15	pinctrl binding [1]).
16- vcc-supply: a phandle for the regulator supplying 3.3V power.
17
18[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
19[1]: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
20
21Example:
22	&i2c0 {
23		/* ... */
24
25		/* Cypress Gen3 touchpad */
26		touchpad@67 {
27			compatible = "cypress,cyapa";
28			reg = <0x67>;
29			interrupt-parent = <&gpio>;
30			interrupts = <2 IRQ_TYPE_EDGE_FALLING>;	/* GPIO 2 */
31			wakeup-source;
32		};
33
34		/* Cypress Gen5 and later touchpad */
35		touchpad@24 {
36			compatible = "cypress,cyapa";
37			reg = <0x24>;
38			interrupt-parent = <&gpio>;
39			interrupts = <2 IRQ_TYPE_EDGE_FALLING>;	/* GPIO 2 */
40			wakeup-source;
41		};
42
43		/* ... */
44	};
45