ArmPlatformPkg/LcdGraphicsOutputDxe: Call LcdShutdown() on ExitBootServices() if PcdGopDisableOnExitBootServices

Contributed-under: TianoCore Contribution Agreement 1.0
Signed-off-by: Olivier Martin <olivier.martin@arm.com>



git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@14702 6f19259b-4bc3-4df7-8a09-765794883524

ArmPlatformPkg/Drivers/LcdGraphicsOutputDxe/LcdGraphicsOutputDxe.c

@@ -225,7 +225,13 @@ LcdGraphicsExitBootServicesEvent (
   IN VOID       *Context
   )
 {
-	//TODO: Implement me
+  // By default, this PCD is FALSE. But if a platform starts a predefined OS that
+  // does not use a framebuffer then we might want to disable the display controller
+  // to avoid to display corrupted information on the screen.
+  if (FeaturePcdGet (PcdGopDisableOnExitBootServices)) {
+    // Turn-off the Display controller
+    LcdShutdown ();
+  }
 }
 
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