diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index bf62b43aaf2b..cfadeeef8492 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -1034,6 +1034,10 @@
 #define DP_SYMBOL_ERROR_COUNT_LANE3_PHY_REPEATER1	    0xf003b /* 1.3 */
 #define DP_FEC_STATUS_PHY_REPEATER1			    0xf0290 /* 1.4 */
 
+/* Repeater modes */
+#define DP_PHY_REPEATER_MODE_TRANSPARENT		    0x55    /* 1.3 */
+#define DP_PHY_REPEATER_MODE_NON_TRANSPARENT		    0xaa    /* 1.3 */
+
 /* DP HDCP message start offsets in DPCD address space */
 #define DP_HDCP_2_2_AKE_INIT_OFFSET		DP_HDCP_2_2_REG_RTX_OFFSET
 #define DP_HDCP_2_2_AKE_SEND_CERT_OFFSET	DP_HDCP_2_2_REG_CERT_RX_OFFSET