Re: [PATCH V2 3/3] ARM: dts: imx6ull-dhcor: Add Marantec maveo box

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On 06/04/2023 17:49, Christoph Niedermaier wrote:
> Add support for Marantec maveo box. The system is used to get a
> smart conntection to a door drive. It has USB, WiFi, Bluetooth,
> Zigbee and NFC interfaces. The core of this system is a soldered
> i.MX6ULL DHCOR SoM from DH electronics.
> 
> Signed-off-by: Christoph Niedermaier <cniedermaier@xxxxxxxxxxxxxxxxxx>
> ---
> Cc: Rob Herring <robh+dt@xxxxxxxxxx>
> Cc: Krzysztof Kozlowski <krzysztof.kozlowski+dt@xxxxxxxxxx>
> Cc: Shawn Guo <shawnguo@xxxxxxxxxx>
> Cc: Li Yang <leoyang.li@xxxxxxx>
> Cc: Marek Vasut <marex@xxxxxxx>
> Cc: Fabio Estevam <festevam@xxxxxxx>
> Cc: NXP Linux Team <linux-imx@xxxxxxx>
> Cc: kernel@xxxxxxxxxxxxxxxxxx
> Cc: devicetree@xxxxxxxxxxxxxxx
> Cc: linux-kernel@xxxxxxxxxxxxxxx
> To: linux-arm-kernel@xxxxxxxxxxxxxxxxxxx
> ---
> V2: - Correct the vendor prefix
>     - Change pinconfig of User and Reset button
> ---
>  arch/arm/boot/dts/Makefile                    |   1 +
>  arch/arm/boot/dts/imx6ull-dhcor-maveo-box.dts | 361 ++++++++++++++++++++++++++
>  2 files changed, 362 insertions(+)
>  create mode 100644 arch/arm/boot/dts/imx6ull-dhcor-maveo-box.dts
> 
> diff --git a/arch/arm/boot/dts/Makefile b/arch/arm/boot/dts/Makefile
> index aa8fb4b7cdcc..58d3334164e2 100644
> --- a/arch/arm/boot/dts/Makefile
> +++ b/arch/arm/boot/dts/Makefile
> @@ -751,6 +751,7 @@ dtb-$(CONFIG_SOC_IMX6UL) += \
>  	imx6ull-dhcom-drc02.dtb \
>  	imx6ull-dhcom-pdk2.dtb \
>  	imx6ull-dhcom-picoitx.dtb \
> +	imx6ull-dhcor-maveo-box.dtb \
>  	imx6ull-jozacp.dtb \
>  	imx6ull-kontron-bl.dtb \
>  	imx6ull-myir-mys-6ulx-eval.dtb \
> diff --git a/arch/arm/boot/dts/imx6ull-dhcor-maveo-box.dts b/arch/arm/boot/dts/imx6ull-dhcor-maveo-box.dts
> new file mode 100644
> index 000000000000..83bacac19933
> --- /dev/null
> +++ b/arch/arm/boot/dts/imx6ull-dhcor-maveo-box.dts
> @@ -0,0 +1,361 @@
> +// SPDX-License-Identifier: GPL-2.0-or-later OR MIT
> +/*
> + * Copyright (C) 2023 DH electronics GmbH
> + * Copyright (C) 2023 Marantec electronics GmbH
> + *
> + * DHCOM iMX6ULL variant:
> + * DHCR-iMX6ULL-C080-R051-SPI-WBT-I-01LG
> + * DHCOR PCB number: 578-200 or newer
> + * maveo box PCB number: 525-200 or newer
> + */
> +
> +/dts-v1/;
> +
> +#include "imx6ull-dhcor-som.dtsi"
> +
> +/ {
> +	model = "DH electronics i.MX6ULL DHCOR on maveo box";
> +	compatible = "marantec,imx6ull-dhcor-maveo-box", "dh,imx6ull-dhcor-som",
> +		     "fsl,imx6ull";
> +
> +	aliases {
> +		/delete-property/ mmc0; /* Avoid double definitions */

I don't understand it. What is "double definition" of aliases?

> +		/delete-property/ mmc1;
> +		mmc2 = &usdhc2; /* eMMC should be mmc2 */

Why? How is this labeled on the board (physically or on schematics)? If
you answer here "for booting", then the answer is NAK. Don't add
software policies to Devicetree.

Best regards,
Krzysztof




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