Re: [PATCH v6 0/4] drm/atomic-helpers: Fix MCDE/R-Car DU regressions

From: Aradhya Bhatia <aradhya.bhatia@linux.dev>
To: "Linus Walleij" <linusw@kernel.org>,
	"Vicente Bergas" <vicencb@gmail.com>,
	"Tomi Valkeinen" <tomi.valkeinen@ideasonboard.com>,
	"Marek Vasut" <marek.vasut+renesas@mailbox.org>,
	"Maarten Lankhorst" <maarten.lankhorst@linux.intel.com>,
	"Maxime Ripard" <mripard@kernel.org>,
	"Thomas Zimmermann" <tzimmermann@suse.de>,
	"David Airlie" <airlied@gmail.com>,
	"Simona Vetter" <simona@ffwll.ch>,
	"Laurent Pinchart" <laurent.pinchart+renesas@ideasonboard.com>,
	"Tomi Valkeinen" <tomi.valkeinen+renesas@ideasonboard.com>,
	"Kieran Bingham" <kieran.bingham+renesas@ideasonboard.com>,
	"Geert Uytterhoeven" <geert+renesas@glider.be>,
	"Magnus Damm" <magnus.damm@gmail.com>,
	"Aradhya Bhatia" <a-bhatia1@ti.com>,
	"Dmitry Baryshkov" <lumag@kernel.org>,
	"Linus Walleij" <linus.walleij@linaro.org>,
	"Sandy Huang" <hjc@rock-chips.com>,
	"Heiko Stübner" <heiko@sntech.de>,
	"Andy Yan" <andy.yan@rock-chips.com>
Cc: dri-devel@lists.freedesktop.org,
	linux-renesas-soc@vger.kernel.org,
	linux-rockchip@lists.infradead.org,
	Geert Uytterhoeven <geert@linux-m68k.org>
Subject: Re: [PATCH v6 0/4] drm/atomic-helpers: Fix MCDE/R-Car DU regressions
Date: Thu, 4 Dec 2025 15:16:10 +0000	[thread overview]
Message-ID: <369afee2-2ae9-4dee-ab0c-c9f196c8dbb1@linux.dev> (raw)
In-Reply-To: <20251202-mcde-drm-regression-thirdfix-v6-0-f1bffd4ec0fa@kernel.org>

Hi,

On 02/12/2025 21:02, Linus Walleij wrote:
> This fixes two regressions experienced in the MCDE and
> R-Car DU DRM drivers after
> commit c9b1150a68d9362a0827609fc0dc1664c0d8bfe1
> "drm/atomic-helper: Re-order bridge chain pre-enable and post-disable"
> caused a series of regressions in all panels that send
> DSI commands in their .prepare() and .unprepare()
> callbacks.>
> This series make it possible to selectively bring back the
> old behaviour with explicit semantics and implements
> the old behaviour as modified commit tails in MCDE and
> R-Car DU.
> 
> Signed-off-by: Linus Walleij <linusw@kernel.org>
> ---

Thank you for your patches, Linus. I am sorry multiple drivers had
regressed due the original patches.

I haven't been tracking the mailing lists actively past few weeks, and
only came across this when Laurent mentioned a patch from the v3 of this
series a couple days back in a discussion for the Rockchip drivers.

My email-id that is indeed used in all those conversations is long gone,
and I had hoped having the newer email-id in the sign-off-by tags would
make up for it. Perhaps that wasn't the case.

I am a little late, but I did give a look at the v6. I don't for-see any
concerns with it.

--
Regards
Aradhya

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