[PATCH v6 4/7] arm64: dts: imx8mm: imx8mp: Add HDMI DTOs for Data Modul i.MX8M Mini and Plus eDM SBC
From: Marek Vasut <hidden>
Date: 2026-07-27 19:53:17
Also in:
imx, linux-devicetree, lkml
Subsystem:
arm/freescale imx / mxc arm architecture, the rest · Maintainers:
Frank Li, Sascha Hauer, Linus Torvalds
Add DT overlay for the DSI-to-HDMI adapter eDM-MOD-iMX8Mm-HDMI populated
with Lontium LT9611 bridge. This adapter can be optionally populated onto
the eDM SBC.
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: Deduplicate the DTOs further
V3: New patch split from the original megapatch
V4: Rebase on next-20260703
V5: No change
V6: Move compatible and reg properties to the beginning of lt9611_codec: hdmi-bridge@3b {} node
---
arch/arm64/boot/dts/freescale/Makefile | 12 +++
...l-edm-sbc-overlay-edm-mod-imx8mm-hdmi.dtsi | 94 +++++++++++++++++++
...l-edm-sbc-overlay-edm-mod-imx8mm-hdmi.dtso | 17 ++++
...l-edm-sbc-overlay-edm-mod-imx8mm-hdmi.dtso | 17 ++++
4 files changed, 140 insertions(+)
create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-data-modul-edm-sbc-overlay-edm-mod-imx8mm-hdmi.dtsi
create mode 100644 arch/arm64/boot/dts/freescale/imx8mm-data-modul-edm-sbc-overlay-edm-mod-imx8mm-hdmi.dtso
create mode 100644 arch/arm64/boot/dts/freescale/imx8mp-data-modul-edm-sbc-overlay-edm-mod-imx8mm-hdmi.dtso
diff --git a/arch/arm64/boot/dts/freescale/Makefile b/arch/arm64/boot/dts/freescale/Makefile
index 28fb374bacb22..5db524708aaf1 100644
--- a/arch/arm64/boot/dts/freescale/Makefile
+++ b/arch/arm64/boot/dts/freescale/Makefile@@ -120,6 +120,10 @@ dtb-$(CONFIG_ARCH_MXC) += imx8dxp-tqma8xdp-mba8xx.dtb dtb-$(CONFIG_ARCH_MXC) += imx8dxp-tqma8xdps-mb-smarc-2.dtb dtb-$(CONFIG_ARCH_MXC) += imx8mm-beacon-kit.dtb +imx8mm-data-modul-edm-sbc-overlay-edm-mod-imx8mm-hdmi-dtbs := \ + imx8mm-data-modul-edm-sbc.dtb \ + imx8mm-data-modul-edm-sbc-overlay-edm-mod-imx8mm-hdmi.dtbo + imx8mm-data-modul-edm-sbc-overlay-edm-mod-imx8mm-lvds-g070y2-l01-dtbs := \ imx8mm-data-modul-edm-sbc.dtb \ imx8mm-data-modul-edm-sbc-overlay-edm-mod-imx8mm-lvds-g070y2-l01.dtbo
@@ -153,6 +157,8 @@ imx8mm-data-modul-edm-sbc-overlay-edm-sbc-imx8mm-rev900-dtbs := \ imx8mm-data-modul-edm-sbc-overlay-edm-sbc-imx8mm-rev900.dtbo dtb-$(CONFIG_ARCH_MXC) += imx8mm-data-modul-edm-sbc.dtb \ + imx8mm-data-modul-edm-sbc-overlay-edm-mod-imx8mm-hdmi.dtb \ + imx8mm-data-modul-edm-sbc-overlay-edm-mod-imx8mm-hdmi.dtbo \ imx8mm-data-modul-edm-sbc-overlay-edm-mod-imx8mm-lvds-g070y2-l01.dtb \ imx8mm-data-modul-edm-sbc-overlay-edm-mod-imx8mm-lvds-g070y2-l01.dtbo \ imx8mm-data-modul-edm-sbc-overlay-edm-mod-imx8mm-lvds-g101ice-l01.dtb \
@@ -296,6 +302,10 @@ dtb-$(CONFIG_ARCH_MXC) += imx8mp-beacon-kit.dtb DTC_FLAGS_imx8mp-cubox-m := -@ dtb-$(CONFIG_ARCH_MXC) += imx8mp-cubox-m.dtb +imx8mp-data-modul-edm-sbc-overlay-edm-mod-imx8mm-hdmi-dtbs := \ + imx8mp-data-modul-edm-sbc.dtb \ + imx8mp-data-modul-edm-sbc-overlay-edm-mod-imx8mm-hdmi.dtbo + imx8mp-data-modul-edm-sbc-overlay-edm-mod-imx8mm-lvds-g070y2-l01-dtbs := \ imx8mp-data-modul-edm-sbc.dtb \ imx8mp-data-modul-edm-sbc-overlay-edm-mod-imx8mm-lvds-g070y2-l01.dtbo
@@ -371,6 +381,8 @@ imx8mp-data-modul-edm-sbc-overlay-edm-sbc-imx8mp-rev902-dtbs := \ imx8mp-data-modul-edm-sbc-overlay-edm-sbc-imx8mp-rev902.dtbo dtb-$(CONFIG_ARCH_MXC) += imx8mp-data-modul-edm-sbc.dtb \ + imx8mp-data-modul-edm-sbc-overlay-edm-mod-imx8mm-hdmi.dtb \ + imx8mp-data-modul-edm-sbc-overlay-edm-mod-imx8mm-hdmi.dtbo \ imx8mp-data-modul-edm-sbc-overlay-edm-mod-imx8mm-lvds-g070y2-l01.dtb \ imx8mp-data-modul-edm-sbc-overlay-edm-mod-imx8mm-lvds-g070y2-l01.dtbo \ imx8mp-data-modul-edm-sbc-overlay-edm-mod-imx8mm-lvds-g101ice-l01.dtb \
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-data-modul-edm-sbc-overlay-edm-mod-imx8mm-hdmi.dtsi b/arch/arm64/boot/dts/freescale/imx8mm-data-modul-edm-sbc-overlay-edm-mod-imx8mm-hdmi.dtsi
new file mode 100644
index 0000000000000..59f15d5a33a28
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mm-data-modul-edm-sbc-overlay-edm-mod-imx8mm-hdmi.dtsi@@ -0,0 +1,94 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) +/* + * Copyright 2026 Marek Vasut + */ + +#include <dt-bindings/gpio/gpio.h> +#include <dt-bindings/interrupt-controller/arm-gic.h> + +&{/} { + hdmi-out { + compatible = "hdmi-connector"; + type = "a"; + + port { + hdmi_con: endpoint { + remote-endpoint = <<9611_out>; + }; + }; + }; +}; + +&i2c_display { /* Display connector I2C */ + #address-cells = <1>; + #size-cells = <0>; + + lt9611_codec: hdmi-bridge@3b { + compatible = "lontium,lt9611"; + reg = <0x3b>; + pinctrl-names = "default"; + pinctrl-0 = <&pinctrl_panel_expansion>; + vcc-supply = <&buck4_reg>; /* X400 pin 55, +3V3_S0 */ + vdd-supply = <&buck5_reg>; /* X400 pin 51, +1V8_S0 */ + + /* Audio I2S not described */ + #sound-dai-cells = <1>; + + ports { + #address-cells = <1>; + #size-cells = <0>; + + port@0 { + reg = <0>; + + lt9611_a: endpoint { + remote-endpoint = <&mipi_dsi_bridge1_out>; + }; + }; + + port@2 { + reg = <2>; + + lt9611_out: endpoint { + remote-endpoint = <&hdmi_con>; + }; + }; + }; + }; + + eeprom@50 { + compatible = "atmel,24c02"; + reg = <0x50>; + pagesize = <16>; + }; +}; + +&iomuxc { + /* Free &pinctrl_panel_expansion from hog for lt9611_codec above */ + pinctrl-0 = <&pinctrl_hog_misc>, <&pinctrl_hog_feature>, + <&pinctrl_hog_panel>, <&pinctrl_hog_sbc>; +}; + +&mipi_dsi { + /* HDMI 148.5 MHz x2 (DDR) x3 (24bpp / 8) */ + 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 { + clock-lanes = <0>; + data-lanes = <1 2 3 4>; + /* Clock and data lanes have DN/DP swapped */ + lane-polarities = <1 1 1 1 1>; + remote-endpoint = <<9611_a>; + }; + }; + }; +};
diff --git a/arch/arm64/boot/dts/freescale/imx8mm-data-modul-edm-sbc-overlay-edm-mod-imx8mm-hdmi.dtso b/arch/arm64/boot/dts/freescale/imx8mm-data-modul-edm-sbc-overlay-edm-mod-imx8mm-hdmi.dtso
new file mode 100644
index 0000000000000..334ba299a3541
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mm-data-modul-edm-sbc-overlay-edm-mod-imx8mm-hdmi.dtso@@ -0,0 +1,17 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) +/* + * Copyright 2022-2026 Marek Vasut + */ +/dts-v1/; +/plugin/; + +#include "imx8mm-data-modul-edm-sbc-overlay-edm-mod-imx8mm-hdmi.dtsi" + +<9611_codec { + interrupts-extended = <&gpio2 3 IRQ_TYPE_EDGE_FALLING>; + reset-gpios = <&gpio2 2 GPIO_ACTIVE_HIGH>; +}; + +&lcdif { + status = "okay"; +};
diff --git a/arch/arm64/boot/dts/freescale/imx8mp-data-modul-edm-sbc-overlay-edm-mod-imx8mm-hdmi.dtso b/arch/arm64/boot/dts/freescale/imx8mp-data-modul-edm-sbc-overlay-edm-mod-imx8mm-hdmi.dtso
new file mode 100644
index 0000000000000..d8114fd869b54
--- /dev/null
+++ b/arch/arm64/boot/dts/freescale/imx8mp-data-modul-edm-sbc-overlay-edm-mod-imx8mm-hdmi.dtso@@ -0,0 +1,17 @@ +// SPDX-License-Identifier: (GPL-2.0+ OR MIT) +/* + * Copyright 2022-2026 Marek Vasut + */ +/dts-v1/; +/plugin/; + +#include "imx8mm-data-modul-edm-sbc-overlay-edm-mod-imx8mm-hdmi.dtsi" + +<9611_codec { + interrupts-extended = <&gpio4 19 IRQ_TYPE_EDGE_FALLING>; + reset-gpios = <&gpio4 0 GPIO_ACTIVE_HIGH>; +}; + +&lcdif1 { + status = "okay"; +};
--
2.53.0