ARM: dts: rk3188-radxarock: add GPIO IR receiver node

This adds a device tree node for the infrared receiver connected to a
GPIO pin on the Radxa Rock.

Signed-off-by: Beniamino Galvani <b.galvani@gmail.com>
Signed-off-by: Heiko Stuebner <heiko@sntech.de>

arch/arm/boot/dts/rk3188-radxarock.dts

@@ -58,6 +58,13 @@
 		};
 	};
 
+	ir_recv: gpio-ir-receiver {
+		compatible = "gpio-ir-receiver";
+		gpios = <&gpio0 10 1>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&ir_recv_pin>;
+	};
+
 	vcc_sd0: sdmmc-regulator {
 		compatible = "regulator-fixed";
 		regulator-name = "sdmmc-supply";
@@ -191,6 +198,12 @@
 			rockchip,pins = <RK_GPIO3 27 RK_FUNC_GPIO &pcfg_output_low>;
 		};
 	};
+
+	ir-receiver {
+		ir_recv_pin: ir-recv-pin {
+			rockchip,pins = <RK_GPIO0 10 RK_FUNC_GPIO &pcfg_pull_none>;
+		};
+	};
 };
 
 &uart0 {