linux-kernel - Re: v4.15: camera problems on n900

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Date:   Fri, 29 Dec 2017 17:30:22 +0100
From:   Pavel Machek <pavel@....cz>
To:     Sakari Ailus <sakari.ailus@....fi>
Cc:     Sakari Ailus <sakari.ailus@...ux.intel.com>, pali.rohar@...il.com,
        sre@...nel.org, kernel list <linux-kernel@...r.kernel.org>,
        linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
        linux-omap@...r.kernel.org, tony@...mide.com, khilman@...nel.org,
        aaro.koskinen@....fi, ivo.g.dimitrov.75@...il.com,
        patrikbachan@...il.com, serge@...lyn.com, abcloriens@...il.com,
        clayton@...ftyguy.net, martijn@...xit.nl,
        Filip Matijević <filip.matijevic.pz@...il.com>,
        laurent.pinchart@...asonboard.com, linux-media@...r.kernel.org
Subject: Re: v4.15: camera problems on n900

On Fri 2017-12-29 11:38:55, Sakari Ailus wrote:
> On Thu, Dec 28, 2017 at 09:24:53PM +0100, Pavel Machek wrote:
> > On Wed 2017-12-27 23:17:19, Sakari Ailus wrote:
> > > On Wed, Dec 27, 2017 at 10:05:43PM +0100, Pavel Machek wrote:
> > > > Hi!
> > > > 
> > > > In v4.14, back camera on N900 works. On v4.15-rc1.. it works for few
> > > > seconds, but then I get repeated oopses.
> > > > 
> > > > On v4.15-rc0.5 (commit ed30b147e1f6e396e70a52dbb6c7d66befedd786),
> > > > camera does not start.	  
> > > > 
> > > > Any ideas what might be wrong there?
> > > 
> > > What kind of oopses do you get?
> > 
> > Hmm. bisect pointed to commit that can't be responsible.... Ideas
> > welcome.
> 
> Hi Pavel,
> 
> I tested N9 and capture appears to be working from the CSI-2 receiver
> (media tree master, i.e. v4.15-rc3 now).
> 
> Which pipeline did you use?

I'm using the "main" sensor (5MPx) and am using capture (not preview)
pipeline.

I tested linux-next in the meantime, and that one seems to
work. (Which is strange, I believe it oopsed before. Perhaps something
random?) With linux-next working, it should not be hardto figure out
what is going on.

Thanks,
									Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html

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