drm: Add a debug node for vblank state.
Signed-off-by: Eric Anholt <eric@anholt.net>
Signed-off-by: Dave Airlie <airlied@linux.ie>
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 7802c80..afb7858 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -911,6 +911,7 @@
int *vblank_enabled; /* so we don't call enable more than
once per disable */
int *vblank_inmodeset; /* Display driver is setting mode */
+ u32 *last_vblank_wait; /* Last vblank seqno waited per CRTC */
struct timer_list vblank_disable_timer;
u32 max_vblank_count; /**< size of vblank counter register */