ARM: dts: lager: Add entries for VIN HDMI input support

Add DT entries for vin0, vin0_pins, and adv7612.

Sets the 'default-input' property for ADV7612, enabling image and video
capture without the need to have userspace specifying routing.
Signed-off-by: William Towle <william.towle@codethink.co.uk>
Signed-off-by: Rob Taylor <rob.taylor@codethink.co.uk>
[uli: added interrupt, renamed endpoint, merged default-input]
Signed-off-by: Ulrich Hecht <ulrich.hecht+renesas@gmail.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Simon Horman <horms+renesas@verge.net.au>

arch/arm/boot/dts/r8a7790-lager.dts

@@ -231,12 +231,23 @@ vga_in: endpoint {
 		};
 	};
 
+	hdmi-in {
+		compatible = "hdmi-connector";
+		type = "a";
+
+		port {
+			hdmi_con_in: endpoint {
+				remote-endpoint = <&adv7612_in>;
+			};
+		};
+	};
+
 	hdmi-out {
 		compatible = "hdmi-connector";
 		type = "a";
 
 		port {
-			hdmi_con: endpoint {
+			hdmi_con_out: endpoint {
 				remote-endpoint = <&adv7511_out>;
 			};
 		};
@@ -427,6 +438,11 @@ usb2_pins: usb2 {
 		function = "usb2";
 	};
 
+	vin0_pins: vin0 {
+		groups = "vin0_data24", "vin0_sync", "vin0_clkenb", "vin0_clk";
+		function = "vin0";
+	};
+
 	vin1_pins: vin1 {
 		groups = "vin1_data8", "vin1_clk";
 		function = "vin1";
@@ -646,7 +662,34 @@ adv7511_in: endpoint {
 			port@1 {
 				reg = <1>;
 				adv7511_out: endpoint {
-					remote-endpoint = <&hdmi_con>;
+					remote-endpoint = <&hdmi_con_out>;
+				};
+			};
+		};
+	};
+
+	hdmi-in@4c {
+		compatible = "adi,adv7612";
+		reg = <0x4c>;
+		interrupt-parent = <&gpio1>;
+		interrupts = <20 IRQ_TYPE_LEVEL_LOW>;
+		default-input = <0>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+				adv7612_in: endpoint {
+					remote-endpoint = <&hdmi_con_in>;
+				};
+			};
+
+			port@2 {
+				reg = <2>;
+				adv7612_out: endpoint {
+					remote-endpoint = <&vin0ep2>;
 				};
 			};
 		};
@@ -722,6 +765,25 @@ &usbphy {
 	status = "okay";
 };
 
+/* HDMI video input */
+&vin0 {
+	pinctrl-0 = <&vin0_pins>;
+	pinctrl-names = "default";
+
+	status = "okay";
+
+	port {
+		vin0ep2: endpoint {
+			remote-endpoint = <&adv7612_out>;
+			bus-width = <24>;
+			hsync-active = <0>;
+			vsync-active = <0>;
+			pclk-sample = <1>;
+			data-active = <1>;
+		};
+	};
+};
+
 /* composite video input */
 &vin1 {
 	pinctrl-0 = <&vin1_pins>;