linux-kernel - Re: [PATCH] drm/imx: parallel-display: Prefer bus format set via legacy "interface-pix-fmt" DT property

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Message-ID: <0d3a41526ba02eee28457fafc95f5152a9c7bb4b.camel@pengutronix.de>
Date: Tue, 13 Jan 2026 12:31:35 +0100
From: Philipp Zabel <p.zabel@...gutronix.de>
To: Marek Vasut <marex@...ladev.com>, dri-devel@...ts.freedesktop.org
Cc: stable@...r.kernel.org, David Airlie <airlied@...il.com>, Fabio Estevam	
 <festevam@...il.com>, Pengutronix Kernel Team <kernel@...gutronix.de>, 
 Sascha Hauer <s.hauer@...gutronix.de>, Shawn Guo <shawnguo@...nel.org>,
 Simona Vetter <simona@...ll.ch>,  Thomas Zimmermann <tzimmermann@...e.de>,
 imx@...ts.linux.dev, linux-arm-kernel@...ts.infradead.org, 
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH] drm/imx: parallel-display: Prefer bus format set via
 legacy "interface-pix-fmt" DT property

On Sa, 2026-01-10 at 18:14 +0100, Marek Vasut wrote:
> Prefer bus format set via legacy "interface-pix-fmt" DT property
> over panel bus format. This is necessary to retain support for
> DTs which configure the IPUv3 parallel output as 24bit DPI, but
> connect 18bit DPI panels to it with hardware swizzling.
>
> This used to work up to Linux 6.12, but stopped working in 6.13,
> reinstate the behavior to support old DTs.
> 
> Cc: stable@...r.kernel.org
> Fixes: 5f6e56d3319d ("drm/imx: parallel-display: switch to drm_panel_bridge")
> Signed-off-by: Marek Vasut <marex@...ladev.com>

Reviewed-by: Philipp Zabel <p.zabel@...gutronix.de>

regards
Philipp