Re: [PATCH 00/15] media: Add driver for the Raspberry Pi <5 CSI-2 receiver

[Florian Fainelli <florian.fainelli@broadcom.com>]

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Hi Laurent,

On 3/1/2024 1:38 PM, Laurent Pinchart wrote:
> The subject line should obviously have read 'PATCH v6', and I should
> have updated Jean-Michel's e-mail address instead of blindly relying on
> get-maintainer.pl. Maybe sending patches on a Friday evening isn't he
> best idea after all. Sorry about that.
> 
> On Fri, Mar 01, 2024 at 11:32:15PM +0200, Laurent Pinchart wrote:
>> Hello everybody,
>>
>> This patch series adds a new driver for the BCM2835 (and derivative)
>> CCP2/CSI2 camera interface named Unicam. This IP core is found in the
>> VC4-based Raspberry Pi, namely the Pi Zero, Pi 3 and Pi 4.
>>
>> Camera support for Raspberry Pi 4 currently relies on a downstream
>> Unicam driver that live in the Raspberry Pi kernel tree ([1]). The
>> driver uses the V4L2 API, but works around the lack of features in V4L2
>> to properly support sensor embedded data. Since the Unicam driver
>> development by Raspberry Pi, some of those features have been merged in
>> the kernel (namely the V4L2 streams API) or are being developed (namely
>> generic metadata formats and subdev internal pads), with patches posted
>> for review on the linux-media mailing list ([2]).
>>
>> This new upstream driver is based on the downstream code, extensively
>> reworked to use the new V4L2 APIs.
>>
>> The series is based on top of a merge of
>>
>> - v7 of the generic metadata and internal pads, rebased on v6.8-rc5 ([3])
>> - the downstream ISP driver ported to mainline ([4])
>>
>> For convenience, it can be found in [5]. Note that the ISP driver is
>> getting upstreamed separately.
>>
>> The series starts with five patches that add support for streams and
>> embedded data to the imx219 driver (01/15 to 05/15). Patches 06/15 to
>> 09/15 then add the Unicam driver, with new V4L2 pixel formats (06/15 and
>> 07/15) and DT bindings (08/15) The remaining patches cover DT
>> integration (10/15 to 14/15) with a sample DT overlay for the IMX219
>> camera module (15/15).

I am really keen on taking the DTS patches now so you know those are 
taken care of, make it to linux-next shortly and then we can focus on 
the drivers/media aspects. Stefan, does that work for you?
-- 
Florian

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