[Intel-gfx] [PATCH] drm/i915: Enable DP audio for Haswell

[Takashi Iwai]

At Mon, 19 Nov 2012 15:01:59 -0200,
Paulo Zanoni wrote:
> 
> Hi
> 
> drivers/gpu/drm/i915/intel_ddi.c: In function ‘intel_ddi_mode_set’:
> drivers/gpu/drm/i915/intel_ddi.c:672:7: error: ‘intel_hdmi’ undeclared
> (first use in this function)
> drivers/gpu/drm/i915/intel_ddi.c:672:7: note: each undeclared
> identifier is reported only once for each function it appears in
> make[4]: ** [drivers/gpu/drm/i915/intel_ddi.o] Erro 1

Doh, sorry, I posted a version before refreshing.
Will submit the right one soon.

> 2012/11/16 Takashi Iwai <tiwai at suse.de>:
> > This patch adds the missing code to send ELD for Haswell DisplayPort,
> > based on Xingchao's original patch.
> >
> > A test was performed with HSW-D machine and NEC EA232Wmi DP monitor.
> >
> > Cc: Xingchao Wang <xingchao.wang at intel.com>
> > Signed-off-by: Takashi Iwai <tiwai at suse.de>
> > ---
> >  drivers/gpu/drm/i915/intel_ddi.c | 9 +++++++++
> >  1 file changed, 9 insertions(+)
> >
> > diff --git a/drivers/gpu/drm/i915/intel_ddi.c b/drivers/gpu/drm/i915/intel_ddi.c
> > index 58f50eb..d8dbd99 100644
> > --- a/drivers/gpu/drm/i915/intel_ddi.c
> > +++ b/drivers/gpu/drm/i915/intel_ddi.c
> > @@ -669,6 +669,15 @@ static void intel_ddi_mode_set(struct drm_encoder *encoder,
> >                         break;
> >                 }
> >
> > +               if (intel_hdmi->has_audio) {
> 
> Replacing it with intel_dp->has_audio makes it look correct.
> 
> You could also try to "unify" the 2 "has_audio" checks of this
> function into one single check at the end of the function.

Yes.  A more refactoring is possible, but I left it as is from the
safety side.


thanks,

Takashi

> > +                       DRM_DEBUG_DRIVER("DP audio on pipe %c on DDI\n",
> > +                                        pipe_name(intel_crtc->pipe));
> > +
> > +                       /* write eld */
> > +                       DRM_DEBUG_DRIVER("DP audio: write eld information\n");
> > +                       intel_write_eld(encoder, adjusted_mode);
> > +               }
> > +
> >                 intel_dp_init_link_config(intel_dp);
> >
> >         } else if (type == INTEL_OUTPUT_HDMI) {
> > --
> > 1.8.0
> >
> > _______________________________________________
> > Intel-gfx mailing list
> > Intel-gfx at lists.freedesktop.org
> > http://lists.freedesktop.org/mailman/listinfo/intel-gfx
> 
> 
> 
> -- 
> Paulo Zanoni
>