diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 11c39f15f1b3..d9bcc0861fba 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -618,6 +618,7 @@
 # define DP_SET_POWER_D0                    0x1
 # define DP_SET_POWER_D3                    0x2
 # define DP_SET_POWER_MASK                  0x3
+# define DP_SET_POWER_D3_AUX_ON             0x5
 
 #define DP_EDP_DPCD_REV			    0x700    /* eDP 1.2 */
 # define DP_EDP_11			    0x00