Re: [PATCH v2 1/5] video: move mediabus format definition to a more standard place

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On Tue, 30 Sep 2014 10:39:53 +0200
Thierry Reding <thierry.reding@xxxxxxxxx> wrote:

> On Tue, Sep 30, 2014 at 09:37:57AM +0200, Boris Brezillon wrote:
> > On Mon, 29 Sep 2014 23:41:09 +0300
> > Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> wrote:
> [...]
> > > Incidentally, patch 2/5 in this series is missing a documentation update ;-)
> > 
> > Yep, regarding this patch, I wonder if it's really necessary to add
> > new formats to the v4l2_mbus_pixelcode enum.
> > If we want to move to this new common definition (across the video
> > related subsytems), we should deprecate the old enum
> > v4l2_mbus_pixelcode, and this start by not adding new formats, don't
> > you think ?
> 
> I agree in general, but I think it could prove problematic in practice.
> If somebody wants to use one of the new codes but is using the V4L2 enum
> they have a problem.
> 
> That said, given that there is now a unified enum people will hopefully
> start converting drivers to it instead.

I'm more worried about user-space lib/programs as this header is part
of the uapi...

But let's be optimistic here and keep porting new formats to
v4l2_mbus_pixelcode enum ;-).

Anyway, I still don't know where to put the documentation. Dropping a
new video format doc without any context (I mean subdev-formats.xml is
included in media documentation, but there's no generic video doc yet)
is a bit weird...

-- 
Boris Brezillon, Free Electrons
Embedded Linux and Kernel engineering
http://free-electrons.com
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