From: Ville Syrjälä <ville.syrj...@linux.intel.com>
Vblank waits timing out is no a normal thing to happen, so let's inform
people when it happens.
Signed-off-by: Ville Syrjälä <ville.syrj...@linux.intel.com>
---
drivers/gpu/drm/drm_atomic_helper.c | 2 ++
1 file changed, 2 insertions(+)
diff --git a/drivers/gpu/drm/drm_atomic_helper.c
b/drivers/gpu/drm/drm_atomic_helper.c
index 7bf678ee7f81..40c7b268a9bc 100644
--- a/drivers/gpu/drm/drm_atomic_helper.c
+++ b/drivers/gpu/drm/drm_atomic_helper.c
@@ -1103,6 +1103,8 @@ drm_atomic_helper_wait_for_vblanks(struct drm_device *dev,
drm_crtc_vblank_count(crtc),
msecs_to_jiffies(50));
+ WARN(!ret, "[CRTC:%d] vblank wait timed out\n", crtc->base.id);
+
drm_crtc_vblank_put(crtc);
}
}
--
2.7.4
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