drm/i915: Don't do PM5/DDR DVFS with multiple pipes
authorVille Syrjälä <ville.syrjala@linux.intel.com>
Wed, 24 Jun 2015 19:00:08 +0000 (22:00 +0300)
committerDaniel Vetter <daniel.vetter@ffwll.ch>
Mon, 29 Jun 2015 08:59:26 +0000 (10:59 +0200)
commit6f9c784b7ec2cc9fc9fd7c5a8634b70aadd76015
tree8ca0da87037a1afead29367c3f79db2c515fafa1
parent852eb00dc44ea2b8896e2fa27c6a36a1f697ba5a
drm/i915: Don't do PM5/DDR DVFS with multiple pipes

Enabling PM5/DDR DVFS with multiple active pipes isn't a validated
configuration. It does seem to work most of the time at least, but
there is clearly an additional risk of underruns, so let's not play
with fire.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: Clint Taylor <Clinton.A.Taylor@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
drivers/gpu/drm/i915/intel_pm.c