diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 05cc31b5db16..698082a02b97 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -123,8 +123,9 @@
 # define DP_FRAMING_CHANGE_CAP		    (1 << 1)
 # define DP_DPCD_DISPLAY_CONTROL_CAPABLE     (1 << 3) /* edp v1.2 or higher */
 
-#define DP_TRAINING_AUX_RD_INTERVAL         0x00e   /* XXX 1.2? */
-# define DP_TRAINING_AUX_RD_MASK            0x7F    /* XXX 1.2? */
+#define DP_TRAINING_AUX_RD_INTERVAL             0x00e   /* XXX 1.2? */
+# define DP_TRAINING_AUX_RD_MASK                0x7F    /* DP 1.3 */
+# define DP_EXTENDED_RECEIVER_CAP_FIELD_PRESENT	(1 << 7) /* DP 1.3 */
 
 #define DP_ADAPTER_CAP			    0x00f   /* 1.2 */
 # define DP_FORCE_LOAD_SENSE_CAP	    (1 << 0)