arm64: dts: renesas: Add support for MIPI Adapter V2.1 connected to HiHope RZ/G2H

Add support for AISTARVISION MIPI Adapter V2.1 board connected to HiHope
RZ/G2H board.

Common file hihope-rzg2-ex-aistarvision-mipi-adapter-2.1.dtsi is created
which will be used by RZ/G2{HMN}, by default the CSI20 node is tied to
ov5645 camera endpoint and the imx219 camera endpoint is tied to CSI40.
Signed-off-by: Lad Prabhakar <prabhakar.mahadev-lad.rj@bp.renesas.com>
Reviewed-by: Biju Das <biju.das.jz@bp.renesas.com>
Acked-by: Niklas Söderlund <niklas.soderlund+renesas@ragnatech.se>
Link: https://lore.kernel.org/r/20201020125134.22625-3-prabhakar.mahadev-lad.rj@bp.renesas.comSigned-off-by: Geert Uytterhoeven <geert+renesas@glider.be>

arch/arm64/boot/dts/renesas/Makefile

@@ -22,6 +22,7 @@ dtb-$(CONFIG_ARCH_R8A774C0) += r8a774c0-ek874-mipi-2.1.dtb
 dtb-$(CONFIG_ARCH_R8A774E1) += r8a774e1-hihope-rzg2h.dtb
 dtb-$(CONFIG_ARCH_R8A774E1) += r8a774e1-hihope-rzg2h-ex.dtb
 dtb-$(CONFIG_ARCH_R8A774E1) += r8a774e1-hihope-rzg2h-ex-idk-1110wr.dtb
+dtb-$(CONFIG_ARCH_R8A774E1) += r8a774e1-hihope-rzg2h-ex-mipi-2.1.dtb
 
 dtb-$(CONFIG_ARCH_R8A77950) += r8a77950-salvator-x.dtb
 dtb-$(CONFIG_ARCH_R8A77950) += r8a77950-ulcb.dtb

arch/arm64/boot/dts/renesas/hihope-rzg2-ex-aistarvision-mipi-adapter-2.1.dtsi

+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree Source for the HiHope RZ/G2[HMN] MIPI common parts
+ *
+ * Copyright (C) 2020 Renesas Electronics Corp.
+ */
+
+#define MIPI_OV5645_PARENT_I2C i2c2
+#define MIPI_IMX219_PARENT_I2C i2c3
+#include "aistarvision-mipi-adapter-2.1.dtsi"
+
+&csi20 {
+	status = "okay";
+
+	ports {
+		port@0 {
+			reg = <0>;
+			csi20_in: endpoint {
+				clock-lanes = <0>;
+				data-lanes = <1 2>;
+				remote-endpoint = <&ov5645_ep>;
+			};
+		};
+	};
+};
+
+&csi40 {
+	status = "okay";
+
+	ports {
+		port@0 {
+			reg = <0>;
+			csi40_in: endpoint {
+				clock-lanes = <0>;
+				data-lanes = <1 2>;
+				remote-endpoint = <&imx219_ep>;
+			};
+		};
+	};
+};
+
+&i2c3 {
+	pinctrl-0 = <&i2c3_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+};
+
+&imx219 {
+	port {
+		imx219_ep: endpoint {
+			clock-lanes = <0>;
+			data-lanes = <1 2>;
+			link-frequencies = /bits/ 64 <456000000>;
+			remote-endpoint = <&csi40_in>;
+		};
+	};
+};
+
+&ov5645 {
+	enable-gpios = <&gpio6 4 GPIO_ACTIVE_HIGH>;
+	reset-gpios = <&gpio6 8 GPIO_ACTIVE_LOW>;
+
+	port {
+		ov5645_ep: endpoint {
+			clock-lanes = <0>;
+			data-lanes = <1 2>;
+			remote-endpoint = <&csi20_in>;
+		};
+	};
+};
+
+&pfc {
+	i2c3_pins: i2c3 {
+		groups = "i2c3";
+		function = "i2c3";
+	};
+};
+
+&vin0 {
+	status = "okay";
+};
+
+&vin1 {
+	status = "okay";
+};
+
+&vin2 {
+	status = "okay";
+};
+
+&vin3 {
+	status = "okay";
+};
+
+&vin4 {
+	status = "okay";
+};
+
+&vin5 {
+	status = "okay";
+};
+
+&vin6 {
+	status = "okay";
+};
+
+&vin7 {
+	status = "okay";
+};

arch/arm64/boot/dts/renesas/r8a774e1-hihope-rzg2h-ex-mipi-2.1.dts

+// SPDX-License-Identifier: GPL-2.0
+/*
+ * Device Tree Source for the HiHope RZ/G2H board
+ * connected with aistarvision-mipi-v2-adapter board
+ *
+ * Copyright (C) 2020 Renesas Electronics Corp.
+ */
+
+/dts-v1/;
+#include "r8a774e1-hihope-rzg2h-ex.dts"
+#include "hihope-rzg2-ex-aistarvision-mipi-adapter-2.1.dtsi"
+
+/ {
+	model = "HopeRun HiHope RZ/G2H with sub board connected with aistarvision-mipi-v2-adapter board";
+	compatible = "hoperun,hihope-rzg2h", "renesas,r8a774e1";
+};