linux-kernel - Re: [PATCH v1] ARM: dts: imx7: remove DSI port endpoints

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Message-ID: <20240223171901.GA22584@francesco-nb>
Date: Fri, 23 Feb 2024 18:19:01 +0100
From: Francesco Dolcini <francesco@...cini.it>
To: Shawn Guo <shawnguo@...nel.org>
Cc: Francesco Dolcini <francesco@...cini.it>,
	Rob Herring <robh+dt@...nel.org>,
	Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
	Conor Dooley <conor+dt@...nel.org>,
	Sascha Hauer <s.hauer@...gutronix.de>,
	Pengutronix Kernel Team <kernel@...gutronix.de>,
	Fabio Estevam <festevam@...il.com>,
	NXP Linux Team <linux-imx@....com>,
	Francesco Dolcini <francesco.dolcini@...adex.com>,
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-kernel@...r.kernel.org,
	Marco Felsch <m.felsch@...gutronix.de>,
	Roland Hieber <rhi@...gutronix.de>,
	Hiago De Franco <hiagofranco@...il.com>,
	Arnd Bergmann <arnd@...db.de>
Subject: Re: [PATCH v1] ARM: dts: imx7: remove DSI port endpoints

On Fri, Feb 16, 2024 at 11:42:55AM +0100, Francesco Dolcini wrote:
> From: Francesco Dolcini <francesco.dolcini@...adex.com>
> 
> This fixes the display not working on colibri imx7, the driver fails to
> load with the following error:
> 
>   mxsfb 30730000.lcdif: error -ENODEV: Cannot connect bridge
> 
> NXP i.MX7 LCDIF is connected to both the Parallel LCD Display and to a
> MIPI DSI IP block, currently it's not possible to describe the
> connection to both.
> 
> Remove the port endpoint from the SOC dtsi to prevent regressions, this
> would need to be defined on the board DTS.
> 
> Reported-by: Hiago De Franco <hiagofranco@...il.com>
> Closes: https://lore.kernel.org/r/34yzygh3mbwpqr2re7nxmhyxy3s7qmqy4vhxvoyxnoguktriur@z66m7gvpqlia/
> Fixes: edbbae7fba49 ("ARM: dts: imx7: add MIPI-DSI support")
> Signed-off-by: Francesco Dolcini <francesco.dolcini@...adex.com>

Hello Shawn, what do you plan to do with this?

This fixes a regression from v6.8-rc1 and would be nice to have it into
the final v6.8.

Francesco