linux-kernel - Re: [PATCH 4/5] media: staging: Drop bcm2835-camera driver

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Message-ID: <0b9fa19b-195b-4bee-8f51-6b00ff2fcb6a@gmx.net>
Date: Mon, 8 Sep 2025 14:00:40 +0200
From: Stefan Wahren <wahrenst@....net>
To: Jai Luthra <jai.luthra@...asonboard.com>,
 Broadcom internal kernel review list
 <bcm-kernel-feedback-list@...adcom.com>,
 Florian Fainelli <florian.fainelli@...adcom.com>,
 Greg Kroah-Hartman <gregkh@...uxfoundation.org>, Ray Jui
 <rjui@...adcom.com>, Scott Branden <sbranden@...adcom.com>,
 Peter Robinson <pbrobinson@...il.com>, "Ivan T. Ivanov" <iivanov@...e.de>
Cc: linux-rpi-kernel@...ts.infradead.org,
 linux-arm-kernel@...ts.infradead.org, linux-staging@...ts.linux.dev,
 linux-kernel@...r.kernel.org, kernel-list@...pberrypi.com,
 Dave Stevenson <dave.stevenson@...pberrypi.com>,
 Laurent Pinchart <laurent.pinchart@...asonboard.com>
Subject: Re: [PATCH 4/5] media: staging: Drop bcm2835-camera driver

Hi Jai,

[add Peter & Ivan to Cc]

Am 03.09.25 um 15:40 schrieb Jai Luthra:
> Hi Stefan,
>
> Quoting Stefan Wahren (2025-08-28 00:48:22)
>> Hi Jai,
>>
>> Am 27.08.25 um 08:24 schrieb Jai Luthra:
>>> The bcm2835-camera driver is replaced by the V4L2 bcm2835-unicam driver
>>> that is already upstream. So drop it from staging.
>> AFAIK the old Raspberry Pi Camera V1 isn't supported by V4L2
>> bcm2835-unicam. Personally i'm fine with this, but this must be clear in
>> the commit message.Did you already talked to distributions like Redhat &
>> OpenSuSE about this step?
> As Dave mentioned, the OV5647 should work with V4L2. I don't have a sensor
> with me, but I can order one and try to get it working with the upstream
> kernel separate from this series.
>
> I did test the V2 camera module (IMX219) with my series applied on top of
> upstream kernel, and capture worked fine with bcm2835-unicam, so I don't
> believe V1 camera module should be an issue.
I was in holidays the last days, so I better reply to this thread / 
context even there is a V2 out yet.

Yes, this explains the technical part behind the motivation and I'm fine 
with this to speed up unstaging.
But my point was "Are the users informed about this step?". So I hope 
the extended Cc should do this job at least for popular distributions.

Best regards