1 files changed, 6 insertions, 0 deletions

diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 11c39f15f1b3..8b9ac321c3bd 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -735,6 +735,12 @@
 # define DP_PSR_SINK_INTERNAL_ERROR         7
 # define DP_PSR_SINK_STATE_MASK             0x07
 
+#define DP_SYNCHRONIZATION_LATENCY_IN_SINK              0x2009 /* edp 1.4 */
+# define DP_MAX_RESYNC_FRAME_COUNT_MASK                 (0xf << 0)
+# define DP_MAX_RESYNC_FRAME_COUNT_SHIFT                0
+# define DP_LAST_ACTUAL_SYNCHRONIZATION_LATENCY_MASK    (0xf << 4)
+# define DP_LAST_ACTUAL_SYNCHRONIZATION_LATENCY_SHIFT   4
+
 #define DP_RECEIVER_ALPM_STATUS             0x200b  /* eDP 1.4 */
 # define DP_ALPM_LOCK_TIMEOUT_ERROR         (1 << 0)