[Intel-gfx] [PATCH 1/2] drm/i915/dp: there is no audio on port A on non-DDI platforms

Daniel Vetter daniel at ffwll.ch
Wed May 6 04:11:32 PDT 2015


On Tue, May 05, 2015 at 04:32:12PM +0300, Jani Nikula wrote:
> On Tue, 05 May 2015, Sivakumar Thulasimani <sivakumar.thulasimani at intel.com> wrote:
> > two points
> > 1) The eDP spec says Audio is optional so it is allowed to have audio, 
> > but i am yet to come across any eDP panel that supports Audio.
> > 2) Also, there is no support for audio in DDI A port as well :)
> >
> > So please change the check to
> >
> > if (!is_edp(encoder))
> 
> Because the actual limitation we have is "no audio on port A" instead of
> "no audio on eDP", I insist we check for port A. Patch below.

Yes this is the correct check. On desktop all-in-ones edp is usually on
port D, which does support audio.
-Daniel
-- 
Daniel Vetter
Software Engineer, Intel Corporation
http://blog.ffwll.ch


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