diff --git a/common/ironlake/hw-gfx-gma-connectors-edp.ads b/common/ironlake/hw-gfx-gma-connectors-edp.ads
new file mode 100644
index 0000000..516e093
--- /dev/null
+++ b/common/ironlake/hw-gfx-gma-connectors-edp.ads
@@ -0,0 +1,32 @@
+--
+-- Copyright (C) 2015-2016 secunet Security Networks AG
+--
+-- This program is free software; you can redistribute it and/or modify
+-- it under the terms of the GNU General Public License as published by
+-- the Free Software Foundation; version 2 of the License.
+--
+-- This program is distributed in the hope that it will be useful,
+-- but WITHOUT ANY WARRANTY; without even the implied warranty of
+-- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+-- GNU General Public License for more details.
+--
+
+private package HW.GFX.GMA.Connectors.EDP
+is
+
+   procedure Pre_On
+     (Port_Cfg    : Port_Config;
+      Pipe_Hint   : Word32);
+
+   procedure Post_On
+     (Link     : in     DP_Link;
+      Success  :    out Boolean);
+
+   pragma Warnings (GNATprove, Off, "unused variable ""Port""",
+                    Reason => "Needed for a common interface");
+   procedure Off (Port : Digital_Port);
+   pragma Warnings (GNATprove, On, "unused variable ""Port""");
+
+   procedure Pre_Training;
+
+end HW.GFX.GMA.Connectors.EDP;