// Device tree overlay for I2C connected EETI EXC3000 multiple touch controller
/dts-v1/;
/plugin/;

/ {
	compatible = "brcm,bcm2835";

	fragment@0 {
		target = <&gpio>;
		__overlay__ {
			exc3000_pins: exc3000_pins {
				brcm,pins = <4>; // interrupt
				brcm,function = <0>; // in
				brcm,pull = <2>; // pull-up
			};
		};
	};

	fragment@1 {
		target = <&i2c1>;
		__overlay__ {
			#address-cells = <1>;
			#size-cells = <0>;
			status = "okay";

			exc3000: exc3000@2a {
				compatible = "eeti,exc3000";
				reg = <0x2a>;
				pinctrl-names = "default";
				pinctrl-0 = <&exc3000_pins>;
				interrupt-parent = <&gpio>;
				interrupts = <4 8>; // active low level-sensitive
				touchscreen-size-x = <4096>;
				touchscreen-size-y = <4096>;
			};
		};
	};

	__overrides__ {
		interrupt = <&exc3000_pins>,"brcm,pins:0",
			<&exc3000>,"interrupts:0";
		sizex = <&exc3000>,"touchscreen-size-x:0";
		sizey = <&exc3000>,"touchscreen-size-y:0";
		invx = <&exc3000>,"touchscreen-inverted-x?";
		invy = <&exc3000>,"touchscreen-inverted-y?";
		swapxy = <&exc3000>,"touchscreen-swapped-x-y?";
	};
};