#define DP_MAIN_LINK_CHANNEL_CODING 0x006
+#define DP_DOWN_STREAM_PORT_COUNT 0x007
+#define DP_PORT_COUNT_MASK 0x0f
+#define DP_OUI_SUPPORT (1 << 7)
+
#define DP_EDP_CONFIGURATION_CAP 0x00d
#define DP_TRAINING_AUX_RD_INTERVAL 0x00e
# 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