Re: V4L2: Add a v4l2-subdev (soc-camera) driver for OmniVision OV9640 sensor

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Dne Po 14. září 2009 23:21:33 Guennadi Liakhovetski napsal(a):
> On Mon, 14 Sep 2009, Marek Vasut wrote:
> > Dne Po 14. září 2009 22:30:41 Guennadi Liakhovetski napsal(a):
> > > On Mon, 14 Sep 2009, Marek Vasut wrote:
> > > > Dne Po 14. září 2009 21:29:26 Guennadi Liakhovetski napsal(a):
> > > > > From: Marek Vasut <marek.vasut@xxxxxxxxx>
> > > > >
> > > > > Signed-off-by: Marek Vasut <marek.vasut@xxxxxxxxx>
> > > > > Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@xxxxxx>
> > > > > ---
> > > > >
> > > > > Marek, please confirm, that this version is ok. I'll push it
> > > > > upstream for 2.6.32 then.
> > > >
> > > > No, it's not OK. You removed the RGB part. Either enclose those parts
> > > > into ifdef OV9640_RGB_BUGGY or preserve it in some other way. Someone
> > > > will certainly want to re-add RGB parts later and will have to figure
> > > > it out all over again.
> > >
> > > Ok, make a proposal, how you would like to see it. But - I do not want
> > > commented out code, including "#ifdef MACRO_THAT_DOESNT_GET_DEFINED." I
> > > think, I described it in sufficient detail, so that re-adding that code
> > > should not take longer than 10 minutes for anyone sufficiently familiar
> > > with the code. Referencing another driver also has an advantage, that
> > > if we switch to imagebus or any other API, you don't get stale
> > > commented out code, but you look up updated code in a functional
> > > driver. But I am open to your ideas / but no commented out code,
> > > please.
> >
> > The RGB is broken only in a way where it swaps colours, the color matrix
> > coeficients and register configurations are OK (which is what other
> > people who will want to add it will need to figure out again from scratch
> > if you remove the code).
> 
> Excuse me, have you looked at my patch? Have you compared it to yours? I
> only removed your RGB code entries from the list of supported formats, I
> haven't removed any implementation details, thus effectively just
> disabling it.

Just briefly skimmed over it. Ok then, that diff seems fine. I assume the imagebus 
will fix the rgb issues anyway.
> 
> > I dont want this merged before this is solved in some way where those
> > values are preserved.
> 
> Sure, let's have it fixed and submit it in time for 2.6.33.
> 
> Thanks
> Guennadi
> ---
> Guennadi Liakhovetski, Ph.D.
> Freelance Open-Source Software Developer
> http://www.open-technology.de/
> 
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