tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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 };