Cypress I2C Touchpad Required properties: - compatible: must be "cypress,cyapa". - 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: 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; }; /* ... */ };