linux-kernel - Re: [PATCH v8 2/5] drm/bridge: add support for refcounting

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Message-ID: <20250321192132.211893ec@booty>
Date: Fri, 21 Mar 2025 19:21:32 +0100
From: Luca Ceresoli <luca.ceresoli@...tlin.com>
To: "Maxime Ripard" <mripard@...nel.org>
Cc: dri-devel@...ts.freedesktop.org, imx@...ts.linux.dev,
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
 "Andrzej Hajda" <andrzej.hajda@...el.com>, "Anusha Srivatsa"
 <asrivats@...hat.com>, "David Airlie" <airlied@...il.com>, "Dmitry
 Baryshkov" <lumag@...nel.org>, "Fabio Estevam" <festevam@...il.com>,
 Hervé Codina <herve.codina@...tlin.com>, "Hui Pu"
 <Hui.Pu@...ealthcare.com>, "Inki Dae" <inki.dae@...sung.com>, "Jagan Teki"
 <jagan@...rulasolutions.com>, "Jernej Skrabec" <jernej.skrabec@...il.com>,
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 <m.szyprowski@...sung.com>, "Marek Vasut" <marex@...x.de>, "Neil Armstrong"
 <neil.armstrong@...aro.org>, "Paul Kocialkowski" <paulk@...-base.io>,
 "Pengutronix Kernel Team" <kernel@...gutronix.de>, "Robert Foss"
 <rfoss@...nel.org>, "Sascha Hauer" <s.hauer@...gutronix.de>, "Shawn Guo"
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 <stefan@...er.ch>, "Thomas Petazzoni" <thomas.petazzoni@...tlin.com>,
 "Thomas Zimmermann" <tzimmermann@...e.de>
Subject: Re: [PATCH v8 2/5] drm/bridge: add support for refcounting

Hello Maxime,

On Fri, 21 Mar 2025 09:54:55 +0000
"Maxime Ripard" <mripard@...nel.org> wrote:

> On Thu, 20 Mar 2025 16:42:11 +0100, Luca Ceresoli wrote:
> > DRM bridges are currently considered as a fixed element of a DRM card, and
> > thus their lifetime is assumed to extend for as long as the card
> > exists. New use cases, such as hot-pluggable hardware with video bridges,
> > require DRM bridges to be added to and removed from a DRM card without
> > tearing the card down. This is possible for connectors already (used by DP
> > 
> > [ ... ]  
> 
> Reviewed-by: Maxime Ripard <mripard@...nel.org>

Thanks a lot for reviewing!

I noticed you haven't replied on patch 3. Being a change you had
suggested, I was wondering whether haven't noticed that. If you are OK
with that patch, the entire series would have a R-by, which would be
great to unlock all the work depending on this series.

Luca

-- 
Luca Ceresoli, Bootlin
Embedded Linux and Kernel engineering
https://bootlin.com