[Intel-gfx] [PATCH] drm/i915: Acquire intel_runtime_pm for HD-Audio registers

[Chris Wilson]

On Tue, Jul 12, 2016 at 04:10:22PM +0300, Mika Kuoppala wrote:
> Chris Wilson <chris at chris-wilson.co.uk> writes:
> 
> > On Haswell/Broadwell, the HD-Audio block is inside the HDMI/display
> > power well and so the sna-hda audio codec acquires the display power
> > well while it is operational. However, Skylake separates the powerwells
> > again, and so we must remember to acquire the rpm wakeref for ourselves
> > whilst tweaking the registers.
> >
> > Bugzilla: https://bugs.freedesktop.org/show_bug.cgi?id=96214
> > Fixes: 03b135cebc47 "ALSA: hda - remove dependency on i915 power well for SKL")
> > Signed-off-by: Chris Wilson <chris at chris-wilson.co.uk>
> 
> Reviewed-by: Mika Kuoppala <mika.kuoppala at intel.com>
> 
> > Cc: Libin Yang <libin.yang at intel.com>
> > Cc: Takashi Iwai <tiwai at suse.de>
> > Cc: Marius Vlad <marius.c.vlad at intel.com>

Marius, could you provide a tested by?
-Chris

-- 
Chris Wilson, Intel Open Source Technology Centre