[Bug 98695] [byt bisected] WARN_ON(!power_domains->domain_use_count[domain])
bugzilla-daemon at freedesktop.org
bugzilla-daemon at freedesktop.org
Mon Nov 14 11:12:22 UTC 2016
https://bugs.freedesktop.org/show_bug.cgi?id=98695
--- Comment #6 from Matwey V. Kornilov <matwey.kornilov at gmail.com> ---
(In reply to yann from comment #4)
> (In reply to Chris Wilson from comment #3)
> > commit a781ce79d51fc4952870c998937980a042927e84
> > Author: Ville Syrjälä <ville.syrjala at linux.intel.com>
> > Date: Fri Nov 27 18:55:25 2015 +0200
> >
> > drm/i915: Clean up AUX power domain handling
> >
> > Introduce intel_display_port_aux_power_domain() which simply returns
> > the appropriate AUX power domain for a specific port, and then replace
> > the intel_display_port_power_domain() with calls to the new function
> > in the DP code. As long as we're not actually enabling the port we don't
> > need the lane power domains, and those are handled now purely from
> > modeset_update_crtc_power_domains().
> >
> > My initial motivation for this was to see if I could keep the DPIO power
> > wells powered down while doing AUX on CHV, but turns out I can't so this
> > doesn't change anything for CHV at least. But I think it's still a
> > worthwile change.
>
> Matwey, please re-test with latest drm-intel-nightly
> (https://cgit.freedesktop.org/drm-intel/) and confirm that is now fixed also
> on your side.
Ok, I will do. Should I pay extra attention to the specific commit which you
believe fix the issue.
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