diff --git a/common/broxton/hw-gfx-gma-power_and_clocks.adb b/common/broxton/hw-gfx-gma-power_and_clocks.adb
index e719ba5..279071a 100644
--- a/common/broxton/hw-gfx-gma-power_and_clocks.adb
+++ b/common/broxton/hw-gfx-gma-power_and_clocks.adb
@@ -192,6 +192,16 @@
       end loop;
    end Power_Set_To;
 
+   procedure Power_Up (Port : Active_Port_Type; Success : out Boolean) is
+   begin
+      case Port is
+         when eDP                         => PD_On (DDI_A);
+         when DP1 | HDMI1 | DP2 | HDMI2   => PW_On (PW2); PD_On (DDI_BC);
+         when others                      => null;
+      end case;
+      Success := True;
+   end Power_Up;
+
    procedure Power_Up (Old_Configs, New_Configs : Pipe_Configs) is
    begin
       for PD in Dynamic_Domain loop