From: Ville Syrjälä Date: Mon, 18 Apr 2016 11:29:33 +0000 (+0300) Subject: drm/atomic-helper: Print an error if vblank wait times out X-Git-Tag: v4.14-rc1~3168^2~62^2~7 X-Git-Url: http://review.tizen.org/git/?a=commitdiff_plain;h=8d4d0d700dda04c5095a08e91f59f537995aa024;p=platform%2Fkernel%2Flinux-rpi.git drm/atomic-helper: Print an error if vblank wait times out Vblank waits timing out is no a normal thing to happen, so let's inform people when it happens. Signed-off-by: Ville Syrjälä Signed-off-by: Daniel Vetter Link: http://patchwork.freedesktop.org/patch/msgid/1460978973-24945-2-git-send-email-ville.syrjala@linux.intel.com --- diff --git a/drivers/gpu/drm/drm_atomic_helper.c b/drivers/gpu/drm/drm_atomic_helper.c index 7bf678e..40c7b26 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); } }