1Elantech I2C Touchpad 2 3Required properties: 4- compatible: must be "elan,ekth3000". 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- elan,trackpoint: touchpad can support a trackpoint (boolean) 16 17[0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt 18[1]: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt 19 20Example: 21 &i2c1 { 22 /* ... */ 23 24 touchpad@15 { 25 compatible = "elan,ekth3000"; 26 reg = <0x15>; 27 interrupt-parent = <&gpio4>; 28 interrupts = <0x0 IRQ_TYPE_EDGE_FALLING>; 29 wakeup-source; 30 }; 31 32 /* ... */ 33 }; 34