diff --git a/drivers/gpu/drm/drm_plane.c b/drivers/gpu/drm/drm_plane.c
index 2c90519576a3..c3419ee09ff0 100644
--- a/drivers/gpu/drm/drm_plane.c
+++ b/drivers/gpu/drm/drm_plane.c
@@ -944,7 +944,7 @@ int drm_mode_page_flip_ioctl(struct drm_device *dev,
 		if (r)
 			return r;
 
-		current_vblank = drm_crtc_vblank_count(crtc);
+		current_vblank = (u32)drm_crtc_vblank_count(crtc);
 
 		switch (page_flip->flags & DRM_MODE_PAGE_FLIP_TARGET) {
 		case DRM_MODE_PAGE_FLIP_TARGET_ABSOLUTE:
diff --git a/include/drm/drm_atomic.h b/include/drm/drm_atomic.h
index 1c27526c499e..6649baa19b65 100644
--- a/include/drm/drm_atomic.h
+++ b/include/drm/drm_atomic.h
@@ -145,7 +145,7 @@ struct __drm_crtcs_state {
 	struct drm_crtc *ptr;
 	struct drm_crtc_state *state, *old_state, *new_state;
 	s32 __user *out_fence_ptr;
-	unsigned last_vblank_count;
+	u64 last_vblank_count;
 };
 
 struct __drm_connnectors_state {