linux-kernel - Re: [PATCH 05/21] ARM: dts: omap: Bind panel to panel-dpi instead of ti,tilcdc,panel driver

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Message-ID: <3bc5bf92-05c3-4841-ab28-9bab2bb31cd5@kernel.org>
Date: Mon, 1 Dec 2025 22:46:01 +0100
From: Krzysztof Kozlowski <krzk@...nel.org>
To: Tomi Valkeinen <tomi.valkeinen@...asonboard.com>,
 "Kory Maincent (TI.com)" <kory.maincent@...tlin.com>
Cc: Markus Schneider-Pargmann <msp@...libre.com>,
 Luca Ceresoli <luca.ceresoli@...tlin.com>,
 Louis Chauvet <louis.chauvet@...tlin.com>,
 Thomas Petazzoni <thomas.petazzoni@...tlin.com>,
 Miguel Gazquez <miguel.gazquez@...tlin.com>,
 dri-devel@...ts.freedesktop.org, devicetree@...r.kernel.org,
 linux-kernel@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
 linux-omap@...r.kernel.org, Jyri Sarha <jyri.sarha@....fi>,
 Maarten Lankhorst <maarten.lankhorst@...ux.intel.com>,
 Maxime Ripard <mripard@...nel.org>, Thomas Zimmermann <tzimmermann@...e.de>,
 David Airlie <airlied@...il.com>, Simona Vetter <simona@...ll.ch>,
 Rob Herring <robh@...nel.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>,
 Conor Dooley <conor+dt@...nel.org>, Russell King <linux@...linux.org.uk>,
 Bartosz Golaszewski <brgl@...ev.pl>, Tony Lindgren <tony@...mide.com>,
 Andrzej Hajda <andrzej.hajda@...el.com>,
 Neil Armstrong <neil.armstrong@...aro.org>, Robert Foss <rfoss@...nel.org>,
 Laurent Pinchart <Laurent.pinchart@...asonboard.com>,
 Jonas Karlman <jonas@...boo.se>, Jernej Skrabec <jernej.skrabec@...il.com>
Subject: Re: [PATCH 05/21] ARM: dts: omap: Bind panel to panel-dpi instead of
 ti,tilcdc,panel driver

On 01/12/2025 15:13, Tomi Valkeinen wrote:
> Hi Kory,
> 
> On 26/11/2025 19:35, Kory Maincent (TI.com) wrote:
>> Use panel-dpi driver instead of the deprecated tilcdc-panel driver in
>> preparation for removing the tilcdc-panel driver and binding.
>>
>> Signed-off-by: Kory Maincent (TI.com) <kory.maincent@...tlin.com>
>> ---
>>
>> This patch is not tested. It would be nice if someone with one of this
>> board could test and validate it.
>> ---
>>  arch/arm/boot/dts/ti/davinci/da850-evm.dts    | 26 +++++++++++++-------------
>>  arch/arm/boot/dts/ti/omap/am335x-guardian.dts | 25 +++++++++----------------
>>  arch/arm/boot/dts/ti/omap/am335x-pdu001.dts   | 21 ++++++++++-----------
>>  arch/arm/boot/dts/ti/omap/am335x-pepper.dts   | 22 +++++++++++-----------
>>  arch/arm/boot/dts/ti/omap/am335x-sbc-t335.dts | 25 +++++++++++++------------
>>  arch/arm/boot/dts/ti/omap/am335x-sl50.dts     | 25 ++++++++++++-------------
>>  6 files changed, 68 insertions(+), 76 deletions(-)
>>
> 
> Doesn't this, or rather the following patches, break DTB compatibility
> with all the above boards?

Stuffing DTS change in the middle of the driver change tries to hide
impact, which is not nice on its own.

Please follow soc maintainer profile and submitting patches in DT
regarding DTS patches.

Best regards,
Krzysztof