[PATCH v2] arm64: dts: imx8mn: Add display DT overlays for the ifm VHIP4 EvalBoard

Marek Vasut marex at nabladev.com
Tue Sep 8 15:48:12 PDT 2026 

From: Fedor Ross <fedor.ross at ifm.com>

Add display DT overlays for the ifm VHIP4 EvalBoard v1. This
includes two expansion modules, one populated with Displaytech
DT050BTFT-PTS panel, and the NXP ADV7533 DSI-to-HDMI adapter.
The Displaytech DT050BTFT-PTS is configured in three different
DSI lane counts to allow testing all possible DSI lane count
configurations of the VHIP4 EvalBoard.

Signed-off-by: Fedor Ross <fedor.ross at ifm.com>
Co-developed-by: Marek Vasut <marex at nabladev.com>
Signed-off-by: Marek Vasut <marex at nabladev.com>
---
Cc: Conor Dooley <conor+dt at kernel.org>
Cc: Fabio Estevam <festevam at gmail.com>
Cc: Frank Li <Frank.Li at nxp.com>
Cc: Krzysztof Kozlowski <krzk+dt at kernel.org>
Cc: Pengutronix Kernel Team <kernel at pengutronix.de>
Cc: Rob Herring <robh at kernel.org>
Cc: Sascha Hauer <s.hauer at pengutronix.de>
Cc: devicetree at vger.kernel.org
Cc: imx at lists.linux.dev
Cc: linux-arm-kernel at lists.infradead.org
Cc: linux-kernel at vger.kernel.org
---
V2: - Fix ADV-1V8 voltage constraints
    - Fix missing CEC clock phandle
---
 arch/arm64/boot/dts/freescale/Makefile        |  16 ++
 ...-evalboard-v1-overlay-dt050btft-1lane.dtso |  16 ++
 ...-evalboard-v1-overlay-dt050btft-2lane.dtso |  16 ++
 ...-evalboard-v1-overlay-dt050btft-4lane.dtso |  16 ++
 ...evalboard-v1-overlay-dt050btft-common.dtsi | 155 ++++++++++++++++++
 ...evalboard-v1-overlay-nxp-adv7533-hdmi.dtso | 106 ++++++++++++
 6 files changed, 325 insertions(+)
 create mode 100644 arch/arm64/boot/dts/freescale/imx8mn-vhip4-evalboard-v1-overlay-dt050btft-1lane.dtso
 create mode 100644 arch/arm64/boot/dts/freescale/imx8mn-vhip4-evalboard-v1-overlay-dt050btft-2lane.dtso
 create mode 100644 arch/arm64/boot/dts/freescale/imx8mn-vhip4-evalboard-v1-overlay-dt050btft-4lane.dtso
 create mode 100644 arch/arm64/boot/dts/freescale/imx8mn-vhip4-evalboard-v1-overlay-dt050btft-common.dtsi
 create mode 100644 arch/arm64/boot/dts/freescale/imx8mn-vhip4-evalboard-v1-overlay-nxp-adv7533-hdmi.dtso

diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 984642146dd91..1cbf7205d577c 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile
@@ -319,6 +319,12 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mn-var-som-symphony.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mn-var-som-symphony-legacy.dtb
 dtb-$(CONFIG_ARCH_MXC) += imx8mn-venice-gw7902.dtb
 
+imx8mn-vhip4-evalboard-v1-overlay-dt050btft-1lane-dtbs := imx8mn-vhip4-evalboard-v1.dtb \
+							  imx8mn-vhip4-evalboard-v1-overlay-dt050btft-1lane.dtbo
+imx8mn-vhip4-evalboard-v1-overlay-dt050btft-2lane-dtbs := imx8mn-vhip4-evalboard-v1.dtb \
+							  imx8mn-vhip4-evalboard-v1-overlay-dt050btft-2lane.dtbo
+imx8mn-vhip4-evalboard-v1-overlay-dt050btft-4lane-dtbs := imx8mn-vhip4-evalboard-v1.dtb \
+							  imx8mn-vhip4-evalboard-v1-overlay-dt050btft-4lane.dtbo
 imx8mn-vhip4-evalboard-v1-overlay-eeprom-1000-dtbs := imx8mn-vhip4-evalboard-v1.dtb \
 						      imx8mn-vhip4-overlay-eeprom-1000.dtbo
 imx8mn-vhip4-evalboard-v1-overlay-eeprom-1100-dtbs := imx8mn-vhip4-evalboard-v1.dtb \
@@ -327,6 +333,8 @@ imx8mn-vhip4-evalboard-v1-overlay-ksz8794-dtbs := imx8mn-vhip4-evalboard-v1.dtb
 						  imx8mn-vhip4-evalboard-v1-overlay-ksz8794.dtbo
 imx8mn-vhip4-evalboard-v1-overlay-ksz9031-dtbs := imx8mn-vhip4-evalboard-v1.dtb \
 						  imx8mn-vhip4-evalboard-v1-overlay-ksz9031.dtbo
+imx8mn-vhip4-evalboard-v1-overlay-nxp-adv7533-hdmi-dtbs := imx8mn-vhip4-evalboard-v1.dtb \
+							   imx8mn-vhip4-evalboard-v1-overlay-nxp-adv7533-hdmi.dtbo
 imx8mn-vhip4-evalboard-v2-overlay-adin1300-dtbs := imx8mn-vhip4-evalboard-v2.dtb \
 						   imx8mn-vhip4-evalboard-v2-overlay-adin1300.dtbo
 imx8mn-vhip4-evalboard-v2-overlay-eeprom-1100-dtbs := imx8mn-vhip4-evalboard-v2.dtb \
@@ -336,12 +344,20 @@ imx8mn-vhip4-evalboard-v2-overlay-eeprom-2000-dtbs := imx8mn-vhip4-evalboard-v2.
 imx8mn-vhip4-evalboard-v2-overlay-ksz8794-dtbs := imx8mn-vhip4-evalboard-v2.dtb \
 						  imx8mn-vhip4-evalboard-v2-overlay-ksz8794.dtbo
 dtb-$(CONFIG_ARCH_MXC) += imx8mn-vhip4-evalboard-v1.dtb \
+			  imx8mn-vhip4-evalboard-v1-overlay-dt050btft-1lane.dtb \
+			  imx8mn-vhip4-evalboard-v1-overlay-dt050btft-1lane.dtbo \
+			  imx8mn-vhip4-evalboard-v1-overlay-dt050btft-2lane.dtb \
+			  imx8mn-vhip4-evalboard-v1-overlay-dt050btft-2lane.dtbo \
+			  imx8mn-vhip4-evalboard-v1-overlay-dt050btft-4lane.dtb \
+			  imx8mn-vhip4-evalboard-v1-overlay-dt050btft-4lane.dtbo \
 			  imx8mn-vhip4-evalboard-v1-overlay-eeprom-1000.dtb \
 			  imx8mn-vhip4-evalboard-v1-overlay-eeprom-1100.dtb \
 			  imx8mn-vhip4-evalboard-v1-overlay-ksz8794.dtb \
 			  imx8mn-vhip4-evalboard-v1-overlay-ksz8794.dtbo \
 			  imx8mn-vhip4-evalboard-v1-overlay-ksz9031.dtb \
 			  imx8mn-vhip4-evalboard-v1-overlay-ksz9031.dtbo \
+			  imx8mn-vhip4-evalboard-v1-overlay-nxp-adv7533-hdmi.dtb \
+			  imx8mn-vhip4-evalboard-v1-overlay-nxp-adv7533-hdmi.dtbo \
 			  imx8mn-vhip4-evalboard-v2.dtb \
 			  imx8mn-vhip4-evalboard-v2-overlay-adin1300.dtb \
 			  imx8mn-vhip4-evalboard-v2-overlay-adin1300.dtbo \
diff --git a/arch/arm64/boot/dts/freescale/imx8mn-vhip4-evalboard-v1-overlay-dt050btft-1lane.dtso b/arch/arm64/boot/dts/freescale/imx8mn-vhip4-evalboard-v1-overlay-dt050btft-1lane.dtso
new file mode 100644
index 0000000000000..4151765743265
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mn-vhip4-evalboard-v1-overlay-dt050btft-1lane.dtso
@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2021-2026 Marek Vasut
+ */
+/dts-v1/;
+/plugin/;
+
+#include "imx8mn-vhip4-evalboard-v1-overlay-dt050btft-common.dtsi"
+
+&sn65dsi83_in {
+	data-lanes = <1>;
+};
+
+&mipi_dsi_bridge1_out {
+	data-lanes = <1>;
+};
diff --git a/arch/arm64/boot/dts/freescale/imx8mn-vhip4-evalboard-v1-overlay-dt050btft-2lane.dtso b/arch/arm64/boot/dts/freescale/imx8mn-vhip4-evalboard-v1-overlay-dt050btft-2lane.dtso
new file mode 100644
index 0000000000000..7b1bd925f53f6
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mn-vhip4-evalboard-v1-overlay-dt050btft-2lane.dtso
@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2021-2026 Marek Vasut
+ */
+/dts-v1/;
+/plugin/;
+
+#include "imx8mn-vhip4-evalboard-v1-overlay-dt050btft-common.dtsi"
+
+&sn65dsi83_in {
+	data-lanes = <1 2>;
+};
+
+&mipi_dsi_bridge1_out {
+	data-lanes = <1 2>;
+};
diff --git a/arch/arm64/boot/dts/freescale/imx8mn-vhip4-evalboard-v1-overlay-dt050btft-4lane.dtso b/arch/arm64/boot/dts/freescale/imx8mn-vhip4-evalboard-v1-overlay-dt050btft-4lane.dtso
new file mode 100644
index 0000000000000..300d5e9536102
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mn-vhip4-evalboard-v1-overlay-dt050btft-4lane.dtso
@@ -0,0 +1,16 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2021-2026 Marek Vasut
+ */
+/dts-v1/;
+/plugin/;
+
+#include "imx8mn-vhip4-evalboard-v1-overlay-dt050btft-common.dtsi"
+
+&sn65dsi83_in {
+	data-lanes = <1 2 3 4>;
+};
+
+&mipi_dsi_bridge1_out {
+	data-lanes = <1 2 3 4>;
+};
diff --git a/arch/arm64/boot/dts/freescale/imx8mn-vhip4-evalboard-v1-overlay-dt050btft-common.dtsi b/arch/arm64/boot/dts/freescale/imx8mn-vhip4-evalboard-v1-overlay-dt050btft-common.dtsi
new file mode 100644
index 0000000000000..c82cc2eef8532
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mn-vhip4-evalboard-v1-overlay-dt050btft-common.dtsi
@@ -0,0 +1,155 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2021-2026 Marek Vasut
+ */
+
+#include <dt-bindings/gpio/gpio.h>
+
+#include "imx8mn-pinfunc.h"
+
+&{/} {
+	backlight: backlight {
+		compatible = "pwm-backlight";
+		/* FIXME: 200 Hz, since DT050BTFT-PTS datasheet does not say */
+		pwms = <&pwm4 0 5000000 0>;
+		brightness-levels = <0 100>;
+		num-interpolated-steps = <100>;
+		default-brightness-level = <75>;
+	};
+
+	lvds-decoder {
+		compatible = "ti,sn65lvds822", "lvds-decoder";
+		powerdown-gpios = <&gpio5 19 GPIO_ACTIVE_LOW>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_lvds_bridge>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port at 0 {
+				reg = <0>;
+
+				lvds_dpi_bridge_in: endpoint {
+					data-mapping = "vesa-24";
+					remote-endpoint = <&sn65dsi83_out>;
+				};
+			};
+
+			port at 1 {
+				reg = <1>;
+
+				lvds_bridge_out: endpoint {
+					remote-endpoint = <&lvds_panel_in>;
+				};
+			};
+		};
+	};
+
+	panel {
+		compatible = "displaytech,dt050btft-pts";
+		backlight = <&backlight>;
+		power-supply = <&reg_panel_3v3>;
+
+		port {
+			lvds_panel_in: endpoint {
+				remote-endpoint = <&lvds_bridge_out>;
+			};
+		};
+	};
+
+	reg_panel_3v3: regulator-panel-3v3 {
+		compatible = "regulator-fixed";
+		regulator-always-on;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-name = "VCC_DISPL";
+	};
+};
+
+&i2c3 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	bridge at 2d {
+		compatible = "ti,sn65dsi83";
+		enable-gpios = <&gpio2 1 GPIO_ACTIVE_HIGH>;
+		pinctrl-names = "default";
+		pinctrl-0 = <&pinctrl_dsi_bridge>;
+		reg = <0x2d>;
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port at 0 {
+				reg = <0>;
+				sn65dsi83_in: endpoint {
+					data-lanes = <1>;
+					remote-endpoint = <&mipi_dsi_bridge1_out>;
+				};
+			};
+
+			port at 2 {
+				reg = <2>;
+				sn65dsi83_out: endpoint {
+					remote-endpoint = <&lvds_dpi_bridge_in>;
+				};
+			};
+		};
+	};
+};
+
+&iomuxc {
+	pinctrl_dsi_bridge: dsibridge-grp {
+		fsl,pins = <
+			/* nRESET_BRIDGE */
+			MX8MN_IOMUXC_SD1_CMD_GPIO2_IO1                  0x100
+		>;
+	};
+
+	pinctrl_lvds_bridge: lvdsbridge-grp {
+		fsl,pins = <
+			/* LVDS_RGB_SHTDN_n */
+			MX8MN_IOMUXC_I2C3_SDA_GPIO5_IO19                0x100
+		>;
+	};
+
+	pinctrl_pwm4: pwm4-grp {
+		fsl,pins = <
+			/* LCD PWM */
+			MX8MN_IOMUXC_I2C3_SCL_PWM4_OUT			0x0116
+		>;
+	};
+};
+
+&lcdif {
+	status = "okay";
+};
+
+&mipi_dsi {
+	samsung,burst-clock-frequency = <891000000>;
+	samsung,esc-clock-frequency = <10000000>;
+	status = "okay";
+
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port at 1 {
+			reg = <1>;
+
+			mipi_dsi_bridge1_out: endpoint {
+				data-lanes = <1>;
+				remote-endpoint = <&sn65dsi83_in>;
+			};
+		};
+	};
+};
+
+&pwm4 {	/* LCD backlight PWM */
+	pinctrl-names = "default";
+	pinctrl-0 = <&pinctrl_pwm4>;
+	status = "okay";
+};
diff --git a/arch/arm64/boot/dts/freescale/imx8mn-vhip4-evalboard-v1-overlay-nxp-adv7533-hdmi.dtso b/arch/arm64/boot/dts/freescale/imx8mn-vhip4-evalboard-v1-overlay-nxp-adv7533-hdmi.dtso
new file mode 100644
index 0000000000000..ec093c3e079e2
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mn-vhip4-evalboard-v1-overlay-nxp-adv7533-hdmi.dtso
@@ -0,0 +1,106 @@
+// SPDX-License-Identifier: (GPL-2.0+ OR MIT)
+/*
+ * Copyright (C) 2021-2026 Marek Vasut
+ */
+/dts-v1/;
+/plugin/;
+
+&{/} {
+	cec_clock: clk-cec-fixed {
+		#clock-cells = <0>;
+		compatible = "fixed-clock";
+		clock-frequency = <24000000>;
+	};
+
+	hdmi-out {
+		compatible = "hdmi-connector";
+		type = "a";
+
+		port {
+			hdmi_con: endpoint {
+				remote-endpoint = <&adv7513_out>;
+			};
+		};
+	};
+
+
+	reg_adv_1v8: regulator-adv-1v8 {
+		compatible = "regulator-fixed";
+		regulator-always-on;
+		regulator-min-microvolt = <1800000>;
+		regulator-max-microvolt = <1800000>;
+		regulator-name = "ADV-1V8";
+	};
+
+	reg_adv_3v3: regulator-adv-3v3 {
+		compatible = "regulator-fixed";
+		regulator-always-on;
+		regulator-min-microvolt = <3300000>;
+		regulator-max-microvolt = <3300000>;
+		regulator-name = "ADV-3V3";
+	};
+};
+
+&i2c3 {
+	#address-cells = <1>;
+	#size-cells = <0>;
+	status = "okay";
+
+	hdmi-transmitter at 3d {
+		compatible = "adi,adv7535";
+		reg = <0x3d>, <0x3e>, <0x3c>, <0x3f>;
+		reg-names = "main", "edid", "cec", "packet";
+		clocks = <&cec_clock>;
+		clock-names = "cec";
+		a2vdd-supply = <&reg_adv_1v8>;
+		adi,dsi-lanes = <4>;
+		avdd-supply = <&reg_adv_1v8>;
+		dvdd-supply = <&reg_adv_1v8>;
+		pvdd-supply = <&reg_adv_1v8>;
+		v3p3-supply = <&reg_adv_3v3>;
+		status = "okay";
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port at 0 {
+				reg = <0>;
+				adv7535_in: endpoint {
+					remote-endpoint = <&mipi_dsi_bridge1_out>;
+				};
+			};
+
+			port at 1 {
+				reg = <1>;
+				adv7513_out: endpoint {
+					remote-endpoint = <&hdmi_con>;
+				};
+			};
+		};
+	};
+};
+
+&lcdif {
+	status = "okay";
+};
+
+&mipi_dsi {
+	samsung,burst-clock-frequency = <891000000>;
+	samsung,esc-clock-frequency = <10000000>;
+	status = "okay";
+
+	ports {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		port at 1 {
+			reg = <1>;
+
+			mipi_dsi_bridge1_out: endpoint {
+				data-lanes = <1 2 3 4>;
+				remote-endpoint = <&adv7535_in>;
+			};
+		};
+	};
+};
-- 
2.53.0

More information about the linux-arm-kernel mailing list