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From:   Peter Robinson <pbrobinson@gmail.com>
Date:   Thu, 16 Nov 2023 10:57:32 +0000
Message-ID: <CALeDE9PuquwZs3ou_RksH41LCYgVtMmQt6KbK7CnBq5S8_yp6g@mail.gmail.com>
Subject: Re: [PATCH v2 00/15] staging: vc04_services: bcm2835-isp support
To:     "Ivan T. Ivanov" <iivanov@suse.de>
Cc:     Laurent Pinchart <laurent.pinchart@ideasonboard.com>,
        Stefan Wahren <wahrenst@gmx.net>,
        Umang Jain <umang.jain@ideasonboard.com>,
        linux-media@vger.kernel.org, kernel-list@raspberrypi.com,
        linux-kernel@vger.kernel.org, linux-rpi-kernel@lists.infradead.org,
        linux-arm-kernel@lists.infradead.org,
        linux-staging@lists.linux.dev,
        Dave Stevenson <dave.stevenson@raspberrypi.com>,
        Kieran Bingham <kieran.bingham@ideasonboard.com>,
        "Ricardo B . Marliere" <ricardo@marliere.net>,
        Dan Carpenter <error27@gmail.com>,
        Guillaume GARDET <guillaume.gardet@opensuse.org>
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> >> > On Thu, Nov 09, 2023 at 04:02:52PM -0500, Umang Jain wrote:
> >> >> This series aims to upport bcm2835-isp from the RPi kernel.
> >> >> It is developed on top of staging-next which comprises many
> >> >> VC04 changes for it's de-staging. Hence, the merge of this
> >> >> driver is targeted when VC04 is de-staged completely (which I
> >> >> have been pushing), but it can be helped getting reviewed meanwhile.
> >> >> Hence, the reason for posting the series.
> >> >
> >> > Related question, what do people think about dropping the legacy
> >> > firmware-based bcm2385-camera driver once this gets merged ?
> >> > firmware-based camera operation is deprecated by Raspberry Pi, and
> >> > doesn't work on the Pi 5
> >>
> >> i don't remember exactly, but wasn't the bcm2835-camera required for
> >> Pi
> >> Camera V1.3?
> >
> > If I'm not mistaken (Dave can correct me), the legacy camera stack
> > works
> > only with the Raspberry Pi official camera v1, v2 and HQ modules.
> > Raspberry Pi has switched to a new camera stack based on libcamera,
> > which works on the Pi Zero 2, Pi 3, Pi 4 and Pi 5. This new stack
> > supports the same camera modules as the legacy stack, and many more.
> > The
> > legacy stack doesn't work on Pi 5 at all.
> >
> >> At the end cannot speak for the users. AFAIK OpenSuSE and Fedora use
> >> the
> >> driver.
>
> Guillaume (in CC) is more authoritative about this topic, but as long we
> have
> smooth migration plan I am more than happy to switch to proper camera
> driver.

From a Fedora PoV I am more than happy to move to the new libcamera
based stack for the RPi camera, IMO sooner the better :)