Re: [PATCH v4] drm/i915/ilk: Don't disable SSC source if it's in use

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On Tue, Jun 07, 2016 at 10:02:35AM +0300, Jani Nikula wrote:
> On Mon, 06 Jun 2016, Lyude Paul <cpaul@xxxxxxxxxx> wrote:
> > On Mon, 2016-06-06 at 14:30 +0300, Ville Syrjälä wrote:
> >> On Thu, May 26, 2016 at 09:54:56AM +0200, Daniel Vetter wrote:
> >> > 
> >> > Queued for -next, thanks for the patch.
> >> Looks like this one broke one of the ILKs in CI.
> >> 
> >> [   13.100979] [drm:ironlake_init_pch_refclk] has_panel 1 has_lvds 1 has_ck505
> >> 0 using_ssc_source 1
> >> [   13.101413] ------------[ cut here ]------------
> >> [   13.101429] kernel BUG at drivers/gpu/drm/i915/intel_display.c:8528!
> >> 
> >> which is the 'BUG_ON(val != final)' at the end of ironlake_init_pch_refclk().
> >> 
> > Managed to find a machine at the office here that I could reproduce this on and
> > figured out the problem with the patch. Unfortunately, the Optiplex 990 that I
> > was seeing this issue on already left the office and the person in charge of it
> > just went on PTO until the end of the week. For the time being don't merge this
> > patch until I can get access to that machine again and make sure the fixed
> > version of this patch still works on the 990. I'll send the new version once I'm
> > able to test it.
> 
> Daniel already merged it, should we revert?

Oops, can do. Or if I have a fixup right away we can merge that, too.
Waiting otoh isn't cool. Lyude?
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch
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