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

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Message-ID: <20140930083952.GA4059@ulmo>
Date:	Tue, 30 Sep 2014 10:39:53 +0200
From:	Thierry Reding <thierry.reding@...il.com>
To:	Boris Brezillon <boris.brezillon@...e-electrons.com>
Cc:	Laurent Pinchart <laurent.pinchart@...asonboard.com>,
	dri-devel@...ts.freedesktop.org, David Airlie <airlied@...ux.ie>,
	Mauro Carvalho Chehab <m.chehab@...sung.com>,
	linux-media@...r.kernel.org,
	Guennadi Liakhovetski <g.liakhovetski@....de>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH v2 1/5] video: move mediabus format definition to a more
 standard place

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@...asonboard.com> 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.

Thierry

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