Re: [RFC PATCH] [media]: of: move graph helpers from drivers/media/v4l2-core to drivers/of

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Am Dienstag, den 11.02.2014, 16:23 +0100 schrieb Laurent Pinchart:
> Hi Russell,
> 
> On Tuesday 11 February 2014 14:52:48 Russell King - ARM Linux wrote:
> > On Tue, Feb 11, 2014 at 07:56:33AM -0600, Rob Herring wrote:
> > > On Tue, Feb 11, 2014 at 5:45 AM, Philipp Zabel wrote:
> > > > This allows to reuse the same parser code from outside the V4L2
> > > > framework, most importantly from display drivers. There have been
> > > > patches that duplicate the code (and I am going to send one of my own),
> > > > such as
> > > > http://lists.freedesktop.org/archives/dri-devel/2013-August/043308.html
> > > > and others that parse the same binding in a different way:
> > > > https://www.mail-archive.com/linux-omap@xxxxxxxxxxxxxxx/msg100761.html
> > > > 
> > > > I think that all common video interface parsing helpers should be moved
> > > > to a single place, outside of the specific subsystems, so that it can
> > > > be reused by all drivers.
> > > 
> > > Perhaps that should be done rather than moving to drivers/of now and
> > > then again to somewhere else.
> > 
> > Do you have a better suggestion where it should move to?
> > 
> > drivers/gpu/drm - no, because v4l2 wants to use it
> > drivers/media/video - no, because DRM drivers want to use it
> > drivers/video - no, because v4l2 and drm drivers want to use it
> 
> Just pointing out a missing location (which might be rejected due to similar 
> concerns), there's also drivers/media, which isn't V4L-specific.

Since drivers/Makefile has media/ in obj-y, moving the graph helpers to
drivers/media should technically work.

> > Maybe drivers/of-graph/ ?  Or maybe it's just as good a place to move it
> > into drivers/of ?

include/media/of_graph.h,
drivers/media/of_graph.c?

regards
Philipp

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