Commit 98a2e5f9 authored Aug 18, 2014 by Deepak S Committed by Daniel Vetter Sep 03, 2014

drm/i915: Bring UP Power Wells before disabling RC6.



We need do forcewake before Disabling RC6, This is what the BIOS
expects while going into suspend.

v2: updated commit message. (Daniel)

Cc: Paulo Zanoni <paulo.r.zanoni@intel.com>
Signed-off-by: Deepak S <deepak.s@intel.com>
Signed-off-by: Rodrigo Vivi <rodrigo.vivi@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>

parent 31e4b89a

drivers/gpu/drm/i915/intel_pm.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -3533,8 +3533,14 @@ static void valleyview_disable_rps(struct drm_device *dev)
		{
		struct drm_i915_private *dev_priv = dev->dev_private;

		/* we're doing forcewake before Disabling RC6,
		* This what the BIOS expects when going into suspend */
		gen6_gt_force_wake_get(dev_priv, FORCEWAKE_ALL);

		I915_WRITE(GEN6_RC_CONTROL, 0);

		gen6_gt_force_wake_put(dev_priv, FORCEWAKE_ALL);

		gen6_disable_rps_interrupts(dev);
		}