Elantech I2C Touchscreen Required properties: - compatible: must be "elan,ekth3500". - reg: I2C address of the chip. - interrupt-parent: a phandle for the interrupt controller (see interrupt binding[0]). - interrupts: interrupt to which the chip is connected (see interrupt binding[0]). Optional properties: - wakeup-source: touchscreen 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]). - reset-gpios: reset gpio the chip is connected to. - vcc33-supply: a phandle for the regulator supplying 3.3V power. - vccio-supply: a phandle for the regulator supplying IO power. [0]: Documentation/devicetree/bindings/interrupt-controller/interrupts.txt [1]: Documentation/devicetree/bindings/pinctrl/pinctrl-bindings.txt Example: &i2c1 { /* ... */ touchscreen@10 { compatible = "elan,ekth3500"; reg = <0x10>; interrupt-parent = <&gpio4>; interrupts = <0x0 IRQ_TYPE_EDGE_FALLING>; wakeup-source; }; /* ... */ };