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