linux-kernel - [PATCH 22/22] arm64: dts: renesas: r9a09g047e57-smarc: Enable DU1 and DSI support

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Message-ID: <7754d2726e365353fe5761f8094a9ea336d159d5.1764165783.git.tommaso.merciai.xr@bp.renesas.com>
Date: Wed, 26 Nov 2025 15:07:34 +0100
From: Tommaso Merciai <tommaso.merciai.xr@...renesas.com>
To: tomm.merciai@...il.com
Cc: linux-renesas-soc@...r.kernel.org,
	biju.das.jz@...renesas.com,
	Tommaso Merciai <tommaso.merciai.xr@...renesas.com>,
	Andrzej Hajda <andrzej.hajda@...el.com>,
	Neil Armstrong <neil.armstrong@...aro.org>,
	Robert Foss <rfoss@...nel.org>,
	Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
	Jonas Karlman <jonas@...boo.se>,
	Jernej Skrabec <jernej.skrabec@...il.com>,
	David Airlie <airlied@...il.com>,
	Simona Vetter <simona@...ll.ch>,
	Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
	Maxime Ripard <mripard@...nel.org>,
	Thomas Zimmermann <tzimmermann@...e.de>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Geert Uytterhoeven <geert+renesas@...der.be>,
	Michael Turquette <mturquette@...libre.com>,
	Stephen Boyd <sboyd@...nel.org>,
	Magnus Damm <magnus.damm@...il.com>,
	dri-devel@...ts.freedesktop.org,
	devicetree@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	linux-clk@...r.kernel.org
Subject: [PATCH 22/22] arm64: dts: renesas: r9a09g047e57-smarc: Enable DU1 and DSI support

Enable DU1, DSI and ADV7535 on RZ/G3E SMARC EVK including the newly
added r9a09g047e57-smarc-du1-adv7535.dtsi

Signed-off-by: Tommaso Merciai <tommaso.merciai.xr@...renesas.com>
---
 .../r9a09g047e57-smarc-du1-adv7535.dtsi       | 124 ++++++++++++++++++
 .../boot/dts/renesas/r9a09g047e57-smarc.dts   |   1 +
 2 files changed, 125 insertions(+)
 create mode 100644 arch/arm64/boot/dts/renesas/r9a09g047e57-smarc-du1-adv7535.dtsi

diff --git a/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc-du1-adv7535.dtsi b/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc-du1-adv7535.dtsi
new file mode 100644
index 000000000000..4444c9634d3e
--- /dev/null
+++ b/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc-du1-adv7535.dtsi
@@ -0,0 +1,124 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+/*
+ * Device Tree Source for the R9A09G047E57 SMARC SoM board with
+ * ADV7535 MIPI DSI to HDMI transmitter connected to DU1 enabled.
+ *
+ * Copyright (C) 2025 Renesas Electronics Corp.
+ */
+
+/ {
+	osc1: cec-clock {
+		compatible = "fixed-clock";
+		#clock-cells = <0>;
+		clock-frequency = <12000000>;
+	};
+
+	reg_1p8v_adv: regulator-1p8v-adv {
+		compatible = "regulator-fixed";
+		regulator-name = "fixed-1.8V";
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		regulator-boot-on;
+		regulator-always-on;
+	};
+
+	reg_3p3v_adv: regulator-3p3v-adv {
+		compatible = "regulator-fixed";
+
+		regulator-name = "fixed-3.3V";
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-boot-on;
+		regulator-always-on;
+	};
+
+	dsi-to-hdmi-out {
+		compatible = "hdmi-connector";
+		type = "d";
+
+		port {
+			dsi_to_hdmi_out: endpoint {
+				remote-endpoint = <&adv7535_out>;
+			};
+		};
+	};
+};
+
+&dsi {
+	status = "okay";
+
+	ports {
+		port@1 {
+			dsi_in1: endpoint {
+				remote-endpoint = <&du1_out_dsi0>;
+			};
+		};
+
+		port@2 {
+			dsi_out: endpoint {
+				remote-endpoint = <&adv7535_in>;
+				data-lanes = <1 2 3 4>;
+			};
+		};
+	};
+};
+
+&du1 {
+	status = "okay";
+
+	ports {
+		port@0 {
+			du1_out_dsi0: endpoint {
+				remote-endpoint = <&dsi_in1>;
+			};
+		};
+	};
+};
+
+&i2c7 {
+	pinctrl-0 = <&i2c7_pins>;
+	pinctrl-names = "default";
+	status = "okay";
+	clock-frequency = <400000>;
+
+	adv7535: hdmi1@3d {
+		compatible = "adi,adv7535";
+		reg = <0x3d>, <0x4d>, <0x2d>, <0x5d>;
+		reg-names = "main", "edid", "cec", "packet";
+		clocks = <&osc1>;
+		clock-names = "cec";
+		avdd-supply = <&reg_1p8v_adv>;
+		dvdd-supply = <&reg_1p8v_adv>;
+		pvdd-supply = <&reg_1p8v_adv>;
+		a2vdd-supply = <&reg_1p8v_adv>;
+		v3p3-supply = <&reg_3p3v_adv>;
+		v1p2-supply = <&reg_1p8v_adv>;
+		adi,dsi-lanes = <4>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+				adv7535_in: endpoint {
+					remote-endpoint = <&dsi_out>;
+				};
+			};
+
+			port@1 {
+				reg = <1>;
+				adv7535_out: endpoint {
+					remote-endpoint = <&dsi_to_hdmi_out>;
+				};
+			};
+		};
+	};
+};
+
+&pinctrl {
+	i2c7_pins: i2c7 {
+		pinmux = <RZG3E_PORT_PINMUX(A, 4, 4)>, /* SCL */
+			 <RZG3E_PORT_PINMUX(A, 5, 4)>; /* SDA */
+	};
+};
diff --git a/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc.dts b/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc.dts
index 08e814c03fa8..74cf36586636 100644
--- a/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc.dts
+++ b/arch/arm64/boot/dts/renesas/r9a09g047e57-smarc.dts
@@ -28,6 +28,7 @@
 #include <dt-bindings/input/input.h>
 #include <dt-bindings/pinctrl/renesas,r9a09g047-pinctrl.h>
 #include "r9a09g047e57.dtsi"
+#include "r9a09g047e57-smarc-du1-adv7535.dtsi"
 #include "rzg3e-smarc-som.dtsi"
 #include "renesas-smarc2.dtsi"
 
-- 
2.43.0