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* EETI eGalax Multiple Touch Controller

Required properties:
- compatible: must be "eeti,egalax_ts"
- reg: i2c slave address
- interrupts: touch controller interrupt
- wakeup-gpios: the gpio pin to be used for waking up the controller
  and also used as irq pin

Example:

	touchscreen@4 {
		compatible = "eeti,egalax_ts";
		reg = <0x04>;
		interrupt-parent = <&gpio1>;
		interrupts = <9 IRQ_TYPE_LEVEL_LOW>;
		wakeup-gpios = <&gpio1 9 GPIO_ACTIVE_LOW>;
	};