Re: [PATCH v4 4/4] ARM: dts: imx6q: Add Variscite MX6 Custom board support

From: Krzysztof Kozlowski <krzysztof.kozlowski@linaro.org>
To: James Hilliard <james.hilliard1@gmail.com>, devicetree@vger.kernel.org
Cc: "Gregory CLEMENT" <gregory.clement@bootlin.com>,
	"Rob Herring" <robh+dt@kernel.org>,
	"Krzysztof Kozlowski" <krzysztof.kozlowski+dt@linaro.org>,
	"Conor Dooley" <conor+dt@kernel.org>,
	"Shawn Guo" <shawnguo@kernel.org>,
	"Sascha Hauer" <s.hauer@pengutronix.de>,
	"Pengutronix Kernel Team" <kernel@pengutronix.de>,
	"Fabio Estevam" <festevam@gmail.com>,
	"NXP Linux Team" <linux-imx@nxp.com>,
	"Marek Vasut" <marex@denx.de>,
	"Frieder Schrempf" <frieder.schrempf@kontron.de>,
	"Stefan Wahren" <stefan.wahren@chargebyte.com>,
	"Philippe Schenker" <philippe.schenker@toradex.com>,
	"Michal Vokáč" <michal.vokac@ysoft.com>,
	"Marcel Ziswiler" <marcel.ziswiler@toradex.com>,
	"Christoph Niedermaier" <cniedermaier@dh-electronics.com>,
	"Li Yang" <leoyang.li@nxp.com>,
	linux-kernel@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org
Subject: Re: [PATCH v4 4/4] ARM: dts: imx6q: Add Variscite MX6 Custom board support
Date: Fri, 21 Jul 2023 09:53:46 +0200	[thread overview]
Message-ID: <3b4eaf27-5e6e-f3d0-24fa-01d5c059c2f5@linaro.org> (raw)
In-Reply-To: <20230721073626.3673429-4-james.hilliard1@gmail.com>

On 21/07/2023 09:36, James Hilliard wrote:
> This patch adds support for the Variscite MX6 SoM Carrier Board.
> 
> This Carrier-Board has the following :
> - LVDS interface for the VLCD-CAP-GLD-LVDS 7" LCD 800 x 480 touch display
> - HDMI Connector
> - USB Host + USB OTG Connector
> - 10/100/1000 Mbps Ethernet
> - miniPCI-Express slot
> - SD Card connector
> - Audio Headphone/Line In jack connectors
> - S-ATA
> - On-board DMIC
> - RS485 Header
> - CAN bus header
> - SPI header
> - Camera Interfaces header
> - OnBoard RTC with Coin Backup battery socket
> - RS232 Debug Header (IDC10)
> - RS232 DTE
> 
> Product Page : https://www.variscite.com/product/single-board-computers/var-mx6customboard
> 
> The dts file based on the ones provided by Variscite on their own
> kernel, but adapted for mainline.
> 
> Signed-off-by: Gregory CLEMENT <gregory.clement@bootlin.com>
> Signed-off-by: James Hilliard <james.hilliard1@gmail.com>
> ---
>  arch/arm/boot/dts/nxp/imx/Makefile            |   1 +
>  .../dts/nxp/imx/imx6q-var-mx6customboard.dts  | 280 ++++++++++++++++++
>  2 files changed, 281 insertions(+)
>  create mode 100644 arch/arm/boot/dts/nxp/imx/imx6q-var-mx6customboard.dts
> 
> diff --git a/arch/arm/boot/dts/nxp/imx/Makefile b/arch/arm/boot/dts/nxp/imx/Makefile
> index 3629e343d322..258ec0e5b712 100644
> --- a/arch/arm/boot/dts/nxp/imx/Makefile
> +++ b/arch/arm/boot/dts/nxp/imx/Makefile
> @@ -244,6 +244,7 @@ dtb-$(CONFIG_SOC_IMX6Q) += \
>  	imx6q-udoo.dtb \
>  	imx6q-utilite-pro.dtb \
>  	imx6q-var-dt6customboard.dtb \
> +	imx6q-var-mx6customboard.dtb \
>  	imx6q-vicut1.dtb \
>  	imx6q-wandboard.dtb \
>  	imx6q-wandboard-revb1.dtb \
> diff --git a/arch/arm/boot/dts/nxp/imx/imx6q-var-mx6customboard.dts b/arch/arm/boot/dts/nxp/imx/imx6q-var-mx6customboard.dts
> new file mode 100644
> index 000000000000..3ca3662fd0d3
> --- /dev/null
> +++ b/arch/arm/boot/dts/nxp/imx/imx6q-var-mx6customboard.dts
> @@ -0,0 +1,280 @@
> +// SPDX-License-Identifier: GPL-2.0+
> +/*
> + * Support for Variscite MX6 Carrier-board
> + *
> + * Copyright 2016 Variscite, Ltd. All Rights Reserved
> + * Copyright 2022 Bootlin
> + */
> +
> +/dts-v1/;
> +
> +#include "imx6qdl-var-som.dtsi"
> +#include <dt-bindings/pwm/pwm.h>
> +
> +/ {
> +	model = "Variscite i.MX6 QUAD/DUAL VAR-SOM-MX6 Custom Board";
> +	compatible = "variscite,mx6customboard", "variscite,var-som-imx6q", "fsl,imx6q";

This is not what you said in the bindings. And you did not test it.

It does not look like you tested the DTS against bindings. Please run
`make dtbs_check` (see
Documentation/devicetree/bindings/writing-schema.rst or
https://www.linaro.org/blog/tips-and-tricks-for-validating-devicetree-sources-with-the-devicetree-schema/
for instructions).

Best regards,
Krzysztof

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