From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed, 16 Oct 2013 20:55:50 +0000 (+0200)
Subject: drm/i915: wait one vblank when disabling CRCs
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=bcf17ab2e9a9b15abdfce83461d4f98e0d11aa1a;p=linux-beck.git

drm/i915: wait one vblank when disabling CRCs

This avoids a spurious spurious interrupt warning.

Reviewed-by: Damien Lespiau <damien.lespiau@intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
---

diff --git a/drivers/gpu/drm/i915/i915_debugfs.c b/drivers/gpu/drm/i915/i915_debugfs.c
index baa527234b93..e85507b335e5 100644
--- a/drivers/gpu/drm/i915/i915_debugfs.c
+++ b/drivers/gpu/drm/i915/i915_debugfs.c
@@ -2040,6 +2040,8 @@ static int pipe_crc_set_source(struct drm_device *dev, enum pipe pipe,
 		DRM_DEBUG_DRIVER("stopping CRCs for pipe %c\n",
 				 pipe_name(pipe));
 
+		intel_wait_for_vblank(dev, pipe);
+
 		kfree(pipe_crc->entries);
 		pipe_crc->entries = NULL;
 	}