[PATCH v2] arm64: dts: imx8mn: Add display DT overlays for the ifm VHIP4 EvalBoard
From: Marek Vasut <hidden>
Date: 2026-09-08 22:48:33
Also in:
imx, linux-devicetree, lkml
Subsystem:
arm/freescale imx / mxc / layerscape arm architecture, the rest · Maintainers:
Frank Li, Sascha Hauer, Linus Torvalds
From: Fedor Ross <redacted>
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 <redacted>
Co-developed-by: Marek Vasut <redacted>
Signed-off-by: Marek Vasut <redacted>
---
Cc: Conor Dooley <conor+dt@kernel.org>
Cc: Fabio Estevam <festevam@gmail.com>
Cc: Frank Li <Frank.Li@nxp.com>
Cc: Krzysztof Kozlowski <krzk+dt@kernel.org>
Cc: Pengutronix Kernel Team <kernel@pengutronix.de>
Cc: Rob Herring <robh@kernel.org>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Cc: devicetree@vger.kernel.org
Cc: imx@lists.linux.dev
Cc: linux-arm-kernel@lists.infradead.org
Cc: linux-kernel@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@0 { + reg = <0>; + + lvds_dpi_bridge_in: endpoint { + data-mapping = "vesa-24"; + remote-endpoint = <&sn65dsi83_out>; + }; + }; + + port@1 { + reg = <1>; + + lvds_bridge_out: endpoint { + remote-endpoint = <&lvds_panel_in>; + }; + }; + }; + }; + + panel { + compatible = "displaytech,dt050btft-pts"; + backlight = <&backlight>; + power-supply = <®_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@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@0 { + reg = <0>; + sn65dsi83_in: endpoint { + data-lanes = <1>; + remote-endpoint = <&mipi_dsi_bridge1_out>; + }; + }; + + port@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@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@3d { + compatible = "adi,adv7535"; + reg = <0x3d>, <0x3e>, <0x3c>, <0x3f>; + reg-names = "main", "edid", "cec", "packet"; + clocks = <&cec_clock>; + clock-names = "cec"; + a2vdd-supply = <®_adv_1v8>; + adi,dsi-lanes = <4>; + avdd-supply = <®_adv_1v8>; + dvdd-supply = <®_adv_1v8>; + pvdd-supply = <®_adv_1v8>; + v3p3-supply = <®_adv_3v3>; + status = "okay"; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + adv7535_in: endpoint { + remote-endpoint = <&mipi_dsi_bridge1_out>; + }; + }; + + port@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@1 { + reg = <1>; + + mipi_dsi_bridge1_out: endpoint { + data-lanes = <1 2 3 4>; + remote-endpoint = <&adv7535_in>; + }; + }; + }; +};
--
2.53.0