video: convert drivers/video/* to use module_platform_driver()

This patch converts the drivers in drivers/video/* to use the
module_platform_driver() macro which makes the code smaller and a bit
simpler.

Cc: Ben Dooks <ben@simtec.co.uk>
Cc: Manuel Lauss <mano@roarinelk.homelinux.net>
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Wan ZongShun <mcuos.com@gmail.com>
Acked-by: Sascha Hauer <s.hauer@pengutronix.de>
Acked-by: Lennert Buytenhek <buytenh@wantstofly.org>
Acked-by: Alexey Charkov <alchark@gmail.com>
Acked-by: Damian Hobson-Garcia <dhobsong@igel.co.jp>
Acked-by: Jingoo Han <jg1.han@samsung.com>
Signed-off-by: Florian Tobias Schandinat <FlorianSchandinat@gmx.de>
diff --git a/drivers/video/xilinxfb.c b/drivers/video/xilinxfb.c
index fcb6cd9..1808452 100644
--- a/drivers/video/xilinxfb.c
+++ b/drivers/video/xilinxfb.c
@@ -511,25 +511,7 @@
 	},
 };
 
-
-/* ---------------------------------------------------------------------
- * Module setup and teardown
- */
-
-static int __init
-xilinxfb_init(void)
-{
-	return platform_driver_register(&xilinxfb_of_driver);
-}
-
-static void __exit
-xilinxfb_cleanup(void)
-{
-	platform_driver_unregister(&xilinxfb_of_driver);
-}
-
-module_init(xilinxfb_init);
-module_exit(xilinxfb_cleanup);
+module_platform_driver(xilinxfb_of_driver);
 
 MODULE_AUTHOR("MontaVista Software, Inc. <source@mvista.com>");
 MODULE_DESCRIPTION("Xilinx TFT frame buffer driver");