linux-kernel - Re: [PATCH v3 12/22] drm/meson: encoder

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Message-Id: <DF4KIOREQYK3.2JEGF51OECQCE@bootlin.com>
Date: Mon, 22 Dec 2025 08:30:53 +0100
From: "Luca Ceresoli" <luca.ceresoli@...tlin.com>
To: "Martin Blumenstingl" <martin.blumenstingl@...glemail.com>
Cc: "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>, "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>, "Jonathan
 Corbet" <corbet@....net>, "Alexey Brodkin" <abrodkin@...opsys.com>, "Phong
 LE" <ple@...libre.com>, "Liu Ying" <victor.liu@....com>, "Shawn Guo"
 <shawnguo@...nel.org>, "Sascha Hauer" <s.hauer@...gutronix.de>,
 "Pengutronix Kernel Team" <kernel@...gutronix.de>, "Fabio Estevam"
 <festevam@...il.com>, "Kevin Hilman" <khilman@...libre.com>, "Jerome
 Brunet" <jbrunet@...libre.com>, "Hui Pu" <Hui.Pu@...ealthcare.com>, "Thomas
 Petazzoni" <thomas.petazzoni@...tlin.com>,
 <dri-devel@...ts.freedesktop.org>, <linux-kernel@...r.kernel.org>,
 <linux-doc@...r.kernel.org>, <imx@...ts.linux.dev>,
 <linux-arm-kernel@...ts.infradead.org>, <linux-amlogic@...ts.infradead.org>
Subject: Re: [PATCH v3 12/22] drm/meson: encoder_hdmi: get/put the next
 bridge

Hello Martin,

On Sun Dec 21, 2025 at 10:51 PM CET, Martin Blumenstingl wrote:
> On Tue, Dec 16, 2025 at 7:00 PM Luca Ceresoli <luca.ceresoli@...tlin.com> wrote:
>>
>> This driver obtains a bridge pointer from of_drm_find_bridge() in the probe
>> function and stores it until driver removal. of_drm_find_bridge() is
>> deprecated. Move to of_drm_find_and_get_bridge() for the bridge to be
>> refcounted and use bridge->next_bridge to put the reference on
>> deallocation.
>>
>> Signed-off-by: Luca Ceresoli <luca.ceresoli@...tlin.com>
> Reviewed-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>
> And additionally I runtime tested this on meson-gxl-s905x-libretech-cc
> where I still have HDMI output, so:
> Tested-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>

Thank you for the quick testing!

I think I can append '# meson-gxl-s905x-libretech-cc' to your 'Tested-by:'
line when I'll apply the patch, to make it more informative.

Best regards,
Luca

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