From bcf17ab2e9a9b15abdfce83461d4f98e0d11aa1a Mon Sep 17 00:00:00 2001
From: Daniel Vetter <daniel.vetter@ffwll.ch>
Date: Wed, 16 Oct 2013 22:55:50 +0200
Subject: [PATCH] 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>
---
drivers/gpu/drm/i915/i915_debugfs.c | 2 ++
1 file changed, 2 insertions(+)
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;
}