diff --git a/common/tigerlake/tgl/hw-gfx-gma-connectors-tc-ownership.adb b/common/tigerlake/tgl/hw-gfx-gma-connectors-tc-ownership.adb
new file mode 100644
index 0000000..b7095bc
--- /dev/null
+++ b/common/tigerlake/tgl/hw-gfx-gma-connectors-tc-ownership.adb
@@ -0,0 +1,101 @@
+--
+-- Copyright (C) 2022 Google, LLC
+--
+-- 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; either version 2 of the License, or
+-- (at your option) any later version.
+--
+-- 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.
+--
+
+with HW.GFX.GMA.Config;
+with HW.GFX.GMA.Registers;
+
+with HW.Debug;
+with GNAT.Source_Info;
+
+package body HW.GFX.GMA.Connectors.TC.Ownership is
+
+   procedure Claim
+     (Port     : in     USBC_Port;
+      DP_Alt   : in     Boolean;
+      Success  :    out Boolean)
+   is
+   begin
+      -- For legacy ports, this is supposed to be
+      -- initialized once during boot, hence wait.
+      Registers.Wait_Set_Mask
+        (Register => Fia_Regs (Port).PORT_TX_DFLEXDPPMS,
+         Mask     => DP_PHY_MODE_STATUS_COMPLETE (Port),
+         TOut_MS  => (if DP_Alt then 0 else 100),
+         Success  => Success);
+      if not Success then
+         pragma Debug (Debug.Put_Line ("DP PHY mode status not complete"));
+         return;
+      end if;
+
+      Registers.Set_Mask
+        (Register => Fia_Regs (Port).PORT_TX_DFLEXDPCSSS,
+         Mask     => DP_PHY_MODE_STATUS_NOT_SAFE (Port));
+   end Claim;
+
+   procedure Claimed (Port : USBC_Port; Is_Claimed : out Boolean) is
+   begin
+      if Port not in Valid_TC_Port then
+         Is_Claimed := False;
+         return;
+      end if;
+
+      Registers.Is_Set_Mask
+        (Register => Fia_Regs (Port).PORT_TX_DFLEXDPCSSS,
+         Mask     => DP_PHY_MODE_STATUS_NOT_SAFE (Port),
+         Result   => Is_Claimed);
+   end Claimed;
+
+   ---------------------------------------------------------------------
+
+   procedure Connect
+     (Port     : in     USBC_Port;
+      DP_Alt   : in     Boolean;
+      Lanes    : in     DP_Lane_Count;
+      Success  :    out Boolean)
+   is
+      Assigned_Lanes : DP_Lane_Count;
+   begin
+      Claimed (Port, Success);
+      if not Success then
+         pragma Debug (Debug.Put_Line ("Tried to connect to unclaimed port."));
+         return;
+      end if;
+
+      if DP_Alt then
+         Registers.Is_Set_Mask
+           (Register => Fia_Regs (Port).PORT_TX_DFLEXDPSP,
+            Mask     => TC_LIVE_STATE_TC (Port),
+            Result   => Success);
+         if not Success then
+            pragma Debug (Debug.Put_Line ("DP-Alt is not connected."));
+            return;
+         end if;
+
+         Get_Lane_Assignment_Count (Port, Assigned_Lanes);
+         Set_Lane_Count (Port, Assigned_Lanes);
+      else
+         Set_Lane_Count (Port, Lanes);
+      end if;
+   end Connect;
+
+   procedure Disconnect (Port : USBC_Port) is
+   begin
+      if Port in Valid_TC_Port then
+         Registers.Unset_Mask
+           (Register => Fia_Regs (Port).PORT_TX_DFLEXDPCSSS,
+            Mask     => DP_PHY_MODE_STATUS_NOT_SAFE (Port));
+      end if;
+   end Disconnect;
+
+end HW.GFX.GMA.Connectors.TC.Ownership;