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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