ARM: dts: imx6sx-sabreauto: add egalax touch screen support

Add egalax touch screen support on i2c2 bus.
Signed-off-by: NAnson Huang <Anson.Huang@nxp.com>
Reviewed-by: NFabio Estevam <fabio.estevam@nxp.com>
Signed-off-by: NShawn Guo <shawnguo@kernel.org>

arch/arm/boot/dts/imx6sx-sabreauto.dts

@@ -111,6 +111,12 @@
 };
 
 &iomuxc {
+	pinctrl_egalax_int: egalax-intgrp {
+		fsl,pins = <
+			MX6SX_PAD_SD4_RESET_B__GPIO6_IO_22      0x10b0
+		>;
+	};
+
 	pinctrl_enet1: enet1grp {
 		fsl,pins = <
 			MX6SX_PAD_ENET1_MDIO__ENET1_MDIO        0xa0b1
@@ -253,6 +259,16 @@
 	pinctrl-0 = <&pinctrl_i2c2>;
 	status = "okay";
 
+	touchscreen@4 {
+		compatible = "eeti,egalax_ts";
+		reg = <0x04>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_egalax_int>;
+		interrupt-parent = <&gpio6>;
+		interrupts = <22 IRQ_TYPE_EDGE_FALLING>;
+		wakeup-gpios = <&gpio6 22 GPIO_ACTIVE_HIGH>;
+	};
+
 	pfuze100: pmic@8 {
 		compatible = "fsl,pfuze100";
 		reg = <0x08>;