linux-kernel - Re: [PATCH 00/14] staging: vc04

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Date:   Fri, 2 Dec 2022 13:25:44 +0000
From:   Peter Robinson <pbrobinson@...il.com>
To:     Stefan Wahren <stefan.wahren@...e.com>
Cc:     Laurent Pinchart <laurent.pinchart@...asonboard.com>,
        Dave Stevenson <dave.stevenson@...pberrypi.com>,
        Umang Jain <umang.jain@...asonboard.com>,
        linux-media@...r.kernel.org, kernel-list@...pberrypi.com,
        linux-kernel@...r.kernel.org, linux-rpi-kernel@...ts.infradead.org,
        linux-arm-kernel@...ts.infradead.org,
        linux-staging@...ts.linux.dev,
        Broadcom internal kernel review list 
        <bcm-kernel-feedback-list@...adcom.com>,
        Florian Fainelli <f.fainelli@...il.com>,
        Naushir Patuck <naush@...pberrypi.com>,
        David Plowman <david.plowman@...pberrypi.com>,
        Kieran Bingham <kieran.bingham@...asonboard.com>,
        "Ivan T. Ivanov" <iivanov@...e.de>
Subject: Re: [PATCH 00/14] staging: vc04_services: bcm2835-isp support

Hi Folks,

> > On Fri, Dec 02, 2022 at 11:23:29AM +0000, Dave Stevenson wrote:
> >> Dropping anything prior to those points would be rather premature in my book.
> > Something I forgot to mention is that there should be no issue at all
> > keeping bcm2835-camera fully supported in the Raspberry Pi downstream
> > kernel for a longer period of time. It's in upstream that I don't think
> > it should be destaged, as it's already considered legacy and should be
> > phased out. Do you know if there are users of that driver with a
> > mainline kernel ?
> >
> In Fedora there seems to be no official support [1], but openSuSE seems
> to mention it [2].

It's enabled in Fedora but I've never had a huge amount of luck with
it, I would be OK with the firmware driver to disappear when ever.

>From our point of view I'd sooner we can just move to the unicam in
kernel one sooner rather than later even swapping one for the other in
staging to get the libcamera one in and improve it in kernel via the
staging process, I feel that would be better use of the very few
cycles I have for RPi bits.

Peter

> [1] -
> https://docs.fedoraproject.org/en-US/quick-docs/raspberry-pi/#_does_the_add_on_camera_work
>
> [2] - https://en.opensuse.org/HCL:Raspberry_Pi_Camera_Modules
>