Re: Kernel Display and Video API Consolidation mini-summit at ELC 2012 - Notes

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Hello Laurent, Everyone:


On Fri, Feb 17, 2012 at 4:55 AM, Laurent Pinchart
<laurent.pinchart@xxxxxxxxxxxxxxxx> wrote:
> Hello everybody,
>
> First of all, I would like to thank all the attendees for their participation
> in the mini-summit that helped make the meeting a success.
>
<snip>
> ***  dma-buf Implementation in V4L2 ***
>
>  Goal: Implement the dma-buf API in V4L2.
>
>  Sumit Semwal has submitted patches to implement the dma-buf importer role in
>  videobuf2. Tomasz Stanislawski has then submitted incremental patches to add
>  exporter role support.
>
>  Action points:
>  - Create a git branch to host all the latest patches. Sumit will provide
>    that.
>
>
Against my Action Item: I have created the following branch at my
github (obviously, it is an RFC branch only)

tree: git://github.com/sumitsemwal/kernel-omap4.git
branch: 3.3rc3-v4l2-dmabuf-RFCv1

As the name partially suggests, it is based out of:
3.3-rc3 +
dmav6 [1] +
some minor dma-buf updates [2] +
my v4l2-as-importer RFC [3] +
Tomasz' RFC for v4l2-as-exporter (and related patches) [4]

Since Tomasz' RFC had a patch-pair which first removed and then added
drivers/media/video/videobuf2-dma-contig.c file, I 'combined' these
into one - but since the patch-pair heavily refactored the file, I am
not able to take responsibility of completeness / correctness of the
same.

[1]: http://git.infradead.org/users/kmpark/linux-samsung/shortlog/refs/heads/3.3-rc2-dma-v6
[2]: git://git.linaro.org/people/sumitsemwal/linux-3.x.git 'dev' branch
[3]: http://thread.gmane.org/gmane.linux.drivers.video-input-infrastructure/42966/focus=42968
[4]: http://thread.gmane.org/gmane.linux.drivers.video-input-infrastructure/43793

Best regards,
~Sumit.
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