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drm/atomic-helper: Print an error if vblank wait times out

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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.syrjala@linux.intel.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: http://patchwork.freedesktop.org/patch/msgid/1460978973-24945-2-git-send-email-ville.syrjala@linux.intel.com
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Ville Syrjälä 2016-04-18 14:29:33 +03:00 committed by Daniel Vetter
parent 1652fce65f
commit 8d4d0d700d
1 changed files with 2 additions and 0 deletions
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2
drivers/gpu/drm/drm_atomic_helper.c
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@ -1103,6 +1103,8 @@ drm_atomic_helper_wait_for_vblanks(struct drm_device *dev,
drm_crtc_vblank_count(crtc), drm_crtc_vblank_count(crtc),
msecs_to_jiffies(50)); msecs_to_jiffies(50));
WARN(!ret, "[CRTC:%d] vblank wait timed out\n", crtc->base.id);
drm_crtc_vblank_put(crtc); drm_crtc_vblank_put(crtc);
} }
} }