Cypress I2C Touchpad
|
|
Required properties:
|
- compatible: must be "cypress,cyapa".
|
- reg: I2C address of the chip.
|
- interrupts: interrupt to which the chip is connected (see interrupt
|
binding[0]).
|
|
Optional properties:
|
- wakeup-source: touchpad can be used as a wakeup source.
|
- pinctrl-names: should be "default" (see pinctrl binding [1]).
|
- pinctrl-0: a phandle pointing to the pin settings for the device (see
|
pinctrl binding [1]).
|
- vcc-supply: a phandle for the regulator supplying 3.3V power.
|
|
[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt
|
[1]: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt
|
|
Example:
|
&i2c0 {
|
/* ... */
|
|
/* Cypress Gen3 touchpad */
|
touchpad@67 {
|
compatible = "cypress,cyapa";
|
reg = <0x67>;
|
interrupt-parent = <&gpio>;
|
interrupts = <2 IRQ_TYPE_EDGE_FALLING>; /* GPIO 2 */
|
wakeup-source;
|
};
|
|
/* Cypress Gen5 and later touchpad */
|
touchpad@24 {
|
compatible = "cypress,cyapa";
|
reg = <0x24>;
|
interrupt-parent = <&gpio>;
|
interrupts = <2 IRQ_TYPE_EDGE_FALLING>; /* GPIO 2 */
|
wakeup-source;
|
};
|
|
/* ... */
|
};
|
