[Linaro-mm-sig] Minutes from V4L2 update call

Christian Robottom Reis kiko at linaro.org
Wed Mar 28 15:05:02 UTC 2012


Hi there,

    Quick action review:

On Thu, Mar 22, 2012 at 04:17:12PM +0100, Laurent Pinchart wrote:
> >     Topic: dmabuf importer from V4L2
> >         For sharing with DRM do not need exporter
> >         Need some patches added to DRM
> >             prime
> >             prime for Exynos
> >             drm-prime
> >                 ACTION: Tomasz to check with Inki Dae and David A. on
> >                 status

Inki, Tomasz, are you happy with the latest posting -- i.e. does this
look sensible and useful for the V4L and display controller work?

> >             Also wants to see tested with V4L driver
> >                 virtual drivers also supporting dma-buf
> >                 wants both importer and exporter?
> >                 ACTION: Sumit to look into VV driver used for v4l2 testing
> >                     needs importer and exporter

Sumit, Tomasz: have you two synced up on this?

> I don't really have work that I can push forward in parallel. My point
> was that the modifications to the V4L2 API and the implementation in
> videobuf2 are two separate tasks that should be pushed forward in
> parallel (extending the V4L2 API takes quite a lot of time in my
> experience, our developers like nit- picking on the mailing list when
> they review the documentation - which I consider as a good thing, just
> for the record).

Laurent, is there an action here to kick off the discussion of the V4L2
API changes (which I don't understand current status of very well)?

> >         Sumit: we have a new 3.3-WIP branch
> >             Rob could use that as a base and put DRM updates on it
> >                 ACTION: Rob to pull in changes and update demonstration

I think Rob's said he'd have time to look at this in a week or two so I
won't inquire on this.

> >                 Rob: what camera does Mauro have?
> >                     On the Samsung SDK, M5MOLS
> >                 Mauro does have a Pandaboard with ov5650 camera but
> >                     needs setting up and potential hardware mod
> >                     ACTION: Mauro to take picture of setup for Sumit

Mauro probably still needs the Panda set up at least, or an up-to-date
Samsung board. Can either of you provide him something to make testing
this work easier? If you have someone I should ask inside the company
just let me know -- if you don't reply I'll assume I need to go and ask
the Linaro member contact.

> >         Without Russell's acceptance can't go forward with ARM-related
> >             pieces
> >             ACTION: Kiko to check with Nicolas on this piece, see if he
> >                 can review or help Marek with the ARM-related pieces

Still waiting for Nico on this one..

> >     Tomasz could use the 3.3-WIP branch
> >         Sumit: rebasing not a good idea, but could pull in for-next
> >             Suggests Tomasz bases work on Linus' mainline
> >                 Had problems with Tomasz' branch that is based on -next
> >             His branch includes Tomasz RFCv2 patches as well
> >         Laurent: agree with Sumit
> >             ACTION: Sumit to email Tomasz and CC: Inki Dae
> >             ACTION: send around latest drm-prime branch

Tomasz, Inki: are you happy with this?

Thanks,
-- 
Christian Robottom Reis, Engineering VP
Brazil (GMT-3) | [+55] 16 9112 6430 | [+1] 612 216 4935
Linaro.org: Open Source Software for ARM SoCs



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