Re: [PATCH] ARM: dts: imx: Add DT overlays for DH i.MX6 DHCOM SoM and boards

[Frank Li]

On Fri, Mar 13, 2026 at 12:34:05AM +0100, Marek Vasut wrote:
> Add DT overlays to support DH i.MX6 DHCOM SoM carrier board expansion
> modules. The following DT overlays are implemented:
> - PDK2:
>   - DH 497-200 Display board in edge connector X12
>   - DH 505-200 Display board in edge connector X12
>   - DH 531-100 SPI/I2C board in header X21
>   - DH 531-200 SPI/I2C board in header X22
>   - DH 560-200 Display board in edge connector X12
> - PicoITX:
>   - DH 626-100 Display board in edge connector X2
>
> Signed-off-by: Marek Vasut <marex@xxxxxxxxxxxx>
> ---
> Cc: Christoph Niedermaier <cniedermaier@xxxxxxxxxxxxxxxxxx>
> Cc: Conor Dooley <conor+dt@xxxxxxxxxx>
> Cc: Fabio Estevam <festevam@xxxxxxxxx>
> Cc: Frank Li <Frank.Li@xxxxxxx>
> Cc: Krzysztof Kozlowski <krzk+dt@xxxxxxxxxx>
> Cc: Pengutronix Kernel Team <kernel@xxxxxxxxxxxxxx>
> Cc: Rob Herring <robh@xxxxxxxxxx>
> Cc: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
> Cc: devicetree@xxxxxxxxxxxxxxx
> Cc: imx@xxxxxxxxxxxxxxx
> Cc: kernel@xxxxxxxxxxxxxxxxxx
> Cc: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> Cc: linux-kernel@xxxxxxxxxxxxxxx
> ---
>  arch/arm/boot/dts/nxp/imx/Makefile            | 37 +++++++++
>  ...l-dhcom-overlay-panel-dpi-ch101olhlwh.dtsi | 75 +++++++++++++++++++
>  .../imx/imx6qdl-dhcom-overlay-panel-dpi.dtsi  | 61 +++++++++++++++
>  ...mx6qdl-dhcom-pdk2-overlay-497-200-x12.dtso | 28 +++++++
>  ...-pdk2-overlay-505-200-x12-ch101olhlwh.dtso | 26 +++++++
>  ...mx6qdl-dhcom-pdk2-overlay-531-100-x21.dtso | 32 ++++++++
>  ...mx6qdl-dhcom-pdk2-overlay-531-100-x22.dtso | 32 ++++++++
>  ...mx6qdl-dhcom-pdk2-overlay-560-200-x12.dtso | 39 ++++++++++
>  ...icoitx-overlay-626-100-x2-ch101olhlwh.dtso |  8 ++
>  .../boot/dts/nxp/imx/imx6qdl-dhcom-som.dtsi   |  2 +-
>  10 files changed, 339 insertions(+), 1 deletion(-)
>  create mode 100644 arch/arm/boot/dts/nxp/imx/imx6qdl-dhcom-overlay-panel-dpi-ch101olhlwh.dtsi
>  create mode 100644 arch/arm/boot/dts/nxp/imx/imx6qdl-dhcom-overlay-panel-dpi.dtsi
>  create mode 100644 arch/arm/boot/dts/nxp/imx/imx6qdl-dhcom-pdk2-overlay-497-200-x12.dtso
>  create mode 100644 arch/arm/boot/dts/nxp/imx/imx6qdl-dhcom-pdk2-overlay-505-200-x12-ch101olhlwh.dtso
>  create mode 100644 arch/arm/boot/dts/nxp/imx/imx6qdl-dhcom-pdk2-overlay-531-100-x21.dtso
>  create mode 100644 arch/arm/boot/dts/nxp/imx/imx6qdl-dhcom-pdk2-overlay-531-100-x22.dtso
>  create mode 100644 arch/arm/boot/dts/nxp/imx/imx6qdl-dhcom-pdk2-overlay-560-200-x12.dtso
>  create mode 100644 arch/arm/boot/dts/nxp/imx/imx6qdl-dhcom-picoitx-overlay-626-100-x2-ch101olhlwh.dtso
>
...
> diff --git a/arch/arm/boot/dts/nxp/imx/imx6qdl-dhcom-overlay-panel-dpi-ch101olhlwh.dtsi b/arch/arm/boot/dts/nxp/imx/imx6qdl-dhcom-overlay-panel-dpi-ch101olhlwh.dtsi
> new file mode 100644
> index 0000000000000..afdb936f1d4e3
> --- /dev/null
> +++ b/arch/arm/boot/dts/nxp/imx/imx6qdl-dhcom-overlay-panel-dpi-ch101olhlwh.dtsi
> @@ -0,0 +1,75 @@
> +// SPDX-License-Identifier: (GPL-2.0+ OR BSD-3-Clause)
> +/*
> + * Copyright (C) 2021 Marek Vasut

2026

> + */
...
> +
> +&panel {
> +	compatible = "edt,etm0700g0edh6";
> +};
> +
> +&panel_in {
> +	remote-endpoint = <&ipu1_dpi0_out>;
> +};
> +
> +&i2c2 {
> +	#address-cells = <1>;
> +	#size-cells = <0>;
> +
> +	touchscreen@38 {
> +		pinctrl-names = "default";
> +		pinctrl-0 = <&pinctrl_dhcom_e>;
> +		compatible = "edt,edt-ft5406";

compatible should first property

> +		reg = <0x38>;

reg is the second one.

Frank