ARM: dts: imx6qdl-sabresd: Add touchscreen support

mx6 sabresd boards have a egalax touchscreen controller connected via I2C3.

Add support for it.
Signed-off-by: Fabio Estevam <fabio.estevam@freescale.com>
Signed-off-by: Shawn Guo <shawn.guo@linaro.org>

arch/arm/boot/dts/imx6qdl-sabresd.dtsi

@@ -131,6 +131,21 @@ codec: wm8962@1a {
        };
 };
 
+&i2c3 {
+	clock-frequency = <100000>;
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_i2c3_2>;
+	status = "okay";
+
+	egalax_ts@04 {
+		compatible = "eeti,egalax_ts";
+		reg = <0x04>;
+		interrupt-parent = <&gpio6>;
+		interrupts = <7 2>;
+		wakeup-gpios = <&gpio6 7 0>;
+	};
+};
+
 &iomuxc {
 	pinctrl-names = "default";
 	pinctrl-0 = <&pinctrl_hog>;
@@ -145,6 +160,7 @@ MX6QDL_PAD_NANDF_D1__GPIO2_IO01 0x80000000
 				MX6QDL_PAD_NANDF_D2__GPIO2_IO02 0x80000000
 				MX6QDL_PAD_NANDF_D3__GPIO2_IO03 0x80000000
 				MX6QDL_PAD_GPIO_0__CCM_CLKO1    0x130b0
+				MX6QDL_PAD_NANDF_CLE__GPIO6_IO07 0x80000000
 			>;
 		};
 	};