diff --git a/common/tigerlake/hw-gfx-gma-connectors.adb b/common/tigerlake/hw-gfx-gma-connectors.adb
index 5e66b96..35e0692 100644
--- a/common/tigerlake/hw-gfx-gma-connectors.adb
+++ b/common/tigerlake/hw-gfx-gma-connectors.adb
@@ -30,6 +30,19 @@
       pragma Debug (Debug.Put_Line (GNAT.Source_Info.Enclosing_Entity));
    end Initialize;
 
+   ---------------------------------------------------------------------
+
+   procedure Prepare
+     (Port     : in     Active_Port_Type;
+      Port_Cfg : in out Port_Config;
+      Success  :    out Boolean)
+   is
+   begin
+      Success := False;
+   end;
+
+   ---------------------------------------------------------------------
+
    procedure Pre_On
      (Pipe        : in     Pipe_Index;
       Port_Cfg    : in     Port_Config;