arm64: dts: imx8mn-evk: add IR support

Add IR support on i.MX8MN EVK board.
Signed-off-by: Joakim Zhang <qiangqing.zhang@nxp.com>
Signed-off-by: Shawn Guo <shawnguo@kernel.org>

arch/arm64/boot/dts/freescale/imx8mn-evk.dtsi

@@ -38,6 +38,14 @@ reg_usdhc2_vmmc: regulator-usdhc2 {
 		gpio = <&gpio2 19 GPIO_ACTIVE_HIGH>;
 		enable-active-high;
 	};
+
+	ir-receiver {
+		compatible = "gpio-ir-receiver";
+		gpios = <&gpio1 13 GPIO_ACTIVE_LOW>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_ir>;
+		linux,autosuspend-period = <125>;
+	};
 };
 
 &fec1 {
@@ -202,6 +210,12 @@ MX8MN_IOMUXC_NAND_READY_B_GPIO3_IO16	0x19
 		>;
 	};
 
+	pinctrl_ir: irgrp {
+		fsl,pins = <
+			MX8MN_IOMUXC_GPIO1_IO13_GPIO1_IO13              0x4f
+		>;
+	};
+
 	pinctrl_i2c1: i2c1grp {
 		fsl,pins = <
 			MX8MN_IOMUXC_I2C1_SCL_I2C1_SCL		0x400001c3