linux-kernel - Re: [PATCH] smiapp: add CCP2 support

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Message-ID: <20170215104819.GC29330@amd>
Date:   Wed, 15 Feb 2017 11:48:19 +0100
From:   Pavel Machek <pavel@....cz>
To:     Sakari <sakari.ailus@....fi>
Cc:     sre@...nel.org, pali.rohar@...il.com, linux-media@...r.kernel.org,
        kernel list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH] smiapp: add CCP2 support

Hi!

> > > I pushed the two DT patches here:
> > > 
> > > <URL:https://git.linuxtv.org/sailus/media_tree.git/commit/?h=ccp2>
> > 
> > Thanks for a branch. If you could the two patches that look ok there,
> > it would mean less work for me, I could just mark those two as applied
> > here.
> 
> I think a verb could be missing from the sentence. :-) I'll send a pull
> request for the entire set, containing more than just the DT changes. Feel
> free to base yours on top of this.
> 
> A word of warning: I have patches to replace the V4L2 OF framework by V4L2
> fwnode. The preliminary set (which is still missing V4L2 OF removal) is
> here, I'll post a refresh soon:
> 
> <URL:http://www.spinics.net/lists/linux-media/msg106160.html>
> 
> Let's see what the order ends up to be in the end. If the fwnode set is
> applicable first, then I'd like to rebase the lane parsing changes on top of
> that rather than the other way around --- it's easier that way.
> 
> > 
> > Core changes for CSI2 support are needed.
> 
> CCP2? We could get these and the smiapp and possibly also the omap3isp
> patches in first, to avoid having to manage a large patchset. What do you
> think?

Well... anything that reduces the ammount of patches I need to
maintain to keep camera working is welcome.

> > There are core changes in notifier locking, and subdev support.
> > 
> > I need video-bus-switch, at least for testing.
> > 
> > I need subdev support for omap3isp, so that we can attach flash and
> > focus devices.
> > 
> > Finally dts support on N900 can be enabled.
> 
> Yes! 8-)
> 
> I don't know if any euros were saved by using that video bus switch but it
> sure has caused a lot of hassle (and perhaps some gray hair) for software
> engineers. X-)

Yes, switch is one of the problems. OTOH... Nokia did a great thing by
creating phone with reasonable design...
									
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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