arm64: dts: renesas: eagle: Add capture overlay for Function expansion board

The Eagle board supports an optional "Function expansion board".
The expansion board adds support for HDMI OUT, HDMI capture from two
different sources, and eMMC.

This change only adds support for the two HDMI capture sources.
Signed-off-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Reviewed-by: Geert Uytterhoeven <geert+renesas@glider.be>
Link: https://lore.kernel.org/r/20240224191902.2065733-1-niklas.soderlund+renesas@ragnatech.seSigned-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arch/arm64/boot/dts/renesas/Makefile

@@ -62,6 +62,9 @@ dtb-$(CONFIG_ARCH_R8A77965) += r8a77965-ulcb.dtb
 dtb-$(CONFIG_ARCH_R8A77965) += r8a77965-ulcb-kf.dtb
 
 dtb-$(CONFIG_ARCH_R8A77970) += r8a77970-eagle.dtb
+dtb-$(CONFIG_ARCH_R8A77970) += r8a77970-eagle-function-expansion.dtbo
+r8a77970-eagle-function-expansion-dtbs := r8a77970-eagle.dtb r8a77970-eagle-function-expansion.dtbo
+dtb-$(CONFIG_ARCH_R8A77970) += r8a77970-eagle-function-expansion.dtb
 dtb-$(CONFIG_ARCH_R8A77970) += r8a77970-v3msk.dtb
 
 dtb-$(CONFIG_ARCH_R8A77980) += r8a77980-condor.dtb

arch/arm64/boot/dts/renesas/r8a77970-eagle-function-expansion.dtso

+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree Source for the Eagle V3M Function expansion board.
+ *
+ * Copyright (C) 2024 Niklas Söderlund <niklas.soderlund@ragnatech.se>
+ */
+
+/dts-v1/;
+/plugin/;
+
+#include <dt-bindings/gpio/gpio.h>
+#include <dt-bindings/interrupt-controller/irq.h>
+
+/ {
+	/* CN4 */
+	/* Eagle: SW18 set to OFF */
+	cvbs-in-cn4 {
+		compatible = "composite-video-connector";
+		label = "CVBS IN CN4";
+
+		port {
+			cvbs_con: endpoint {
+				remote-endpoint = <&adv7482_ain7>;
+			};
+		};
+	};
+
+	/* CN2 */
+	/* Eagle: SW35 set 5, 6 and 8 to OFF */
+	hdmi-in-cn2 {
+		compatible = "hdmi-connector";
+		label = "HDMI IN CN2";
+		type = "a";
+
+		port {
+			hdmi_in_con2: endpoint {
+				remote-endpoint = <&adv7612_in>;
+			};
+		};
+	};
+
+	/* CN3 */
+	/* Eagle: SW18 set to OFF */
+	hdmi-in-cn3 {
+		compatible = "hdmi-connector";
+		label = "HDMI IN CN3";
+		type = "a";
+
+		port {
+			hdmi_in_con: endpoint {
+				remote-endpoint = <&adv7482_hdmi>;
+			};
+		};
+	};
+};
+
+/* Disconnect MAX9286 GMSL I2C. */
+&i2c3 {
+	status = "disabled";
+};
+
+/* Connect expansion board I2C. */
+&i2c0 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+
+	gpio@27 {
+		compatible = "onnn,pca9654";
+		reg = <0x27>;
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		vin0_adv7612_en {
+			gpio-hog;
+			gpios = <3 GPIO_ACTIVE_LOW>;
+			output-high;
+			line-name = "VIN0_ADV7612_ENn";
+		};
+	};
+
+	hdmi-decoder@4c {
+		compatible = "adi,adv7612";
+		reg = <0x4c>, <0x50>, <0x52>, <0x54>, <0x56>, <0x58>;
+		reg-names = "main", "afe", "rep", "edid", "hdmi", "cp";
+		interrupt-parent = <&gpio3>;
+		interrupts = <2 IRQ_TYPE_LEVEL_LOW>;
+		default-input = <0>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+
+				adv7612_in: endpoint {
+					remote-endpoint = <&hdmi_in_con2>;
+				};
+			};
+
+			port@2 {
+				reg = <2>;
+
+				adv7612_out: endpoint {
+					remote-endpoint = <&vin0_in>;
+				};
+			};
+		};
+	};
+
+	video-receiver@70 {
+		compatible = "adi,adv7482";
+		reg = <0x70 0x71 0x72 0x73 0x74 0x75
+		       0x60 0x61 0x62 0x63 0x64 0x65>;
+		reg-names = "main", "dpll", "cp", "hdmi", "edid", "repeater",
+			    "infoframe", "cbus", "cec", "sdp", "txa", "txb" ;
+		interrupt-parent = <&gpio3>;
+		interrupts = <03 IRQ_TYPE_LEVEL_LOW>, <04 IRQ_TYPE_LEVEL_LOW>;
+		interrupt-names = "intrq1", "intrq2";
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@7 {
+				reg = <7>;
+
+				adv7482_ain7: endpoint {
+					remote-endpoint = <&cvbs_con>;
+				};
+			};
+
+			port@8 {
+				reg = <8>;
+
+				adv7482_hdmi: endpoint {
+					remote-endpoint = <&hdmi_in_con>;
+				};
+			};
+
+			port@a {
+				reg = <10>;
+
+				adv7482_txa: endpoint {
+					clock-lanes = <0>;
+					data-lanes = <1 2 3 4>;
+					remote-endpoint = <&csi40_in>;
+				};
+			};
+		};
+	};
+
+};
+
+&csi40 {
+	status = "okay";
+
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port@0 {
+			reg = <0>;
+
+			csi40_in: endpoint {
+				clock-lanes = <0>;
+				data-lanes = <1 2 3 4>;
+				remote-endpoint = <&adv7482_txa>;
+			};
+		};
+	};
+};
+
+&pfc {
+	vin0_pins_parallel: vin0 {
+		groups = "vin0_data12", "vin0_sync", "vin0_clk", "vin0_clkenb";
+		function = "vin0";
+	};
+};
+
+&vin0 {
+	status = "okay";
+
+	pinctrl-0 = <&vin0_pins_parallel>;
+	pinctrl-names = "default";
+
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port@0 {
+			reg = <0>;
+
+			vin0_in: endpoint {
+				pclk-sample = <0>;
+				hsync-active = <0>;
+				vsync-active = <0>;
+				remote-endpoint = <&adv7612_out>;
+			};
+		};
+	};
+};
+
+&vin1 {
+	status = "okay";
+};
+
+&vin2 {
+	status = "okay";
+};
+
+&vin3 {
+	status = "okay";
+};