Re: fsl-dcu not works on latest "drm-next"

[Mark Brown <broonie@kernel.org>]

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On Fri, May 27, 2016 at 10:36:21AM -0700, Stefan Agner wrote:
> On 2016-05-27 05:20, Mark Brown wrote:

> > That's another way of addressing it of course, but unless the register
> > map actually is sparse it's probably still sensible to send the
> > conversion to flat cache as a fix.

> The regcache is used for suspend, but the suspend implementation in its
> current form is not in not working. Hence I felt it is not worth fixing
> part of something which is broken as a whole anyway.

> So far I was under the impression the "only" issue using REGCACHE_RBTREE
> is that it triggers a warning when enabling lockdep. 

The warning is warning about a real issue that might crop up - it's not
just cosmetic, it's doing allocations inside a spinlock which could
break badly.  Even if it doesn't help this issue I'd recommend getting a
fix in if you can to avoid it blowing up on people (unless the more
complete set of changes can go in as a bugfix of course in which case
it's moot).

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