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

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

Cc: Ben Dooks <ben@simtec.co.uk>
Cc: Derrick J. Brashear <shadow@dementia.org>
Signed-off-by: Axel Lin <axel.lin@gmail.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>
diff --git a/drivers/parport/parport_ax88796.c b/drivers/parport/parport_ax88796.c
index 844f613..7c5d866 100644
--- a/drivers/parport/parport_ax88796.c
+++ b/drivers/parport/parport_ax88796.c
@@ -420,18 +420,7 @@
 	.resume		= parport_ax88796_resume,
 };
 
-static int __init parport_ax88796_init(void)
-{
-	return platform_driver_register(&axdrv);
-}
-
-static void __exit parport_ax88796_exit(void)
-{
-	platform_driver_unregister(&axdrv);
-}
-
-module_init(parport_ax88796_init)
-module_exit(parport_ax88796_exit)
+module_platform_driver(axdrv);
 
 MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
 MODULE_DESCRIPTION("AX88796 Parport parallel port driver");