linux-kernel - Re: [PATCH v2 00/15] staging: vc04

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Message-ID: <20231116005030.GA21041@pendragon.ideasonboard.com>
Date:   Thu, 16 Nov 2023 02:50:30 +0200
From:   Laurent Pinchart <laurent.pinchart@...asonboard.com>
To:     Stefan Wahren <wahrenst@....net>
Cc:     Umang Jain <umang.jain@...asonboard.com>,
        "Ivan T. Ivanov" <iivanov@...e.de>,
        Peter Robinson <pbrobinson@...il.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,
        Dave Stevenson <dave.stevenson@...pberrypi.com>,
        Kieran Bingham <kieran.bingham@...asonboard.com>,
        "Ricardo B . Marliere" <ricardo@...liere.net>,
        Dan Carpenter <error27@...il.com>
Subject: Re: [PATCH v2 00/15] staging: vc04_services: bcm2835-isp support

On Wed, Nov 15, 2023 at 09:57:52PM +0100, Stefan Wahren wrote:
> Hi Laurent,
> 
> [add Ivan & Peter]
> 
> Am 15.11.23 um 20:59 schrieb Laurent Pinchart:
> > Hello,
> >
> > 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.

-- 
Regards,

Laurent Pinchart