diff --git a/include/drm/drm_dp_helper.h b/include/drm/drm_dp_helper.h
index 93df2d72750b1878e8822bf8716b77926941ae91..8ed85b96487d1a8be5e5f2e37bdc423b55cec098 100644
--- a/include/drm/drm_dp_helper.h
+++ b/include/drm/drm_dp_helper.h
@@ -213,6 +213,10 @@
 # define DP_TEST_NAK			    (1 << 1)
 # define DP_TEST_EDID_CHECKSUM_WRITE	    (1 << 2)
 
+#define DP_SOURCE_OUI			    0x300
+#define DP_SINK_OUI			    0x400
+#define DP_BRANCH_OUI			    0x500
+
 #define DP_SET_POWER                        0x600
 # define DP_SET_POWER_D0                    0x1
 # define DP_SET_POWER_D3                    0x2