[Bug 91410] [BDW][Audio][HD-A Display] DP/HDMI audio playback abnormal

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=91410

--- Comment #32 from Jim Bride <jim.bride at linux.intel.com> ---
(In reply to yann from comment #31)
> (In reply to Jani Nikula from comment #30)
> > (In reply to Vasily Khoruzhick from comment #27)
> > > (In reply to Jani Nikula from comment #26)
> > > 
> > > > +	return dev_priv->cdclk_freq;
> > > >  }
> > > >  
> > > >  static int i915_audio_component_sync_audio_rate(struct device *dev,
> > > 
> > > Is it initialized early enough to allow audio driver querying a clock?
> > 
> > It should be set before we expose the component interface for the audio
> > driver query.
> 
> Jani, Ville, do we have any patch available to re-test?

The audio team needs to modify hdac_hdmi_eld_notify_cb() in their driver to
query CDCLK and update their M/N registers appropriately.  I'm not sure that
there's anything on the graphics side that is needed.

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