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-rw-r--r--include/drm/drmP.h3
1 files changed, 2 insertions, 1 deletions
diff --git a/include/drm/drmP.h b/include/drm/drmP.h
index 63eab2b72ee7..46bf8ae7e302 100644
--- a/include/drm/drmP.h
+++ b/include/drm/drmP.h
@@ -1402,7 +1402,8 @@ extern int drm_calc_vbltimestamp_from_scanoutpos(struct drm_device *dev,
struct timeval *vblank_time,
unsigned flags,
struct drm_crtc *refcrtc);
-extern void drm_calc_timestamping_constants(struct drm_crtc *crtc);
+extern void drm_calc_timestamping_constants(struct drm_crtc *crtc,
+ const struct drm_display_mode *mode);
extern bool
drm_mode_parse_command_line_for_connector(const char *mode_option,