Commit 9bbc8258 authored Nov 20, 2015 by Ville Syrjälä

drm/i915: Check for underruns after crtc disable

To get a better idea if underruns occurred during crtc disabling,
let's check for them explicitly. This helps in cases where the
error interrupt isn't active, or there is no underrun interrupt
support at all.

Signed-off-by: Ville Syrjälä <ville.syrjala@linux.intel.com>
Link: http://patchwork.freedesktop.org/patch/msgid/1448050160-14124-3-git-send-email-ville.syrjala@linux.intel.com

Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>

parent 7864578a

drivers/gpu/drm/i915/intel_display.c

+7 −0

Original line number	Diff line number	Diff line
		@@ -13402,6 +13402,13 @@ static int intel_atomic_commit(struct drm_device *dev,
		dev_priv->display.crtc_disable(crtc);
		intel_crtc->active = false;
		intel_disable_shared_dpll(intel_crtc);

		/*
		* Underruns don't always raise
		* interrupts, so check manually.
		*/
		intel_check_cpu_fifo_underruns(dev_priv);
		intel_check_pch_fifo_underruns(dev_priv);
		}
		}