ARM: 7362/1: AMBA: Add module_amba_driver() helper macro for amba_driver

For simple modules that contain a single amba_driver without any
additional setup code then ends up being a block of duplicated
boilerplate. This patch adds a new macro, module_amba_driver(),
which replaces the module_init()/module_exit() registrations with
template functions.

Signed-off-by: Viresh Kumar <viresh.kumar@st.com>
Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>
diff --git a/drivers/dma/pl330.c b/drivers/dma/pl330.c
index b8ec03e..16b66c8 100644
--- a/drivers/dma/pl330.c
+++ b/drivers/dma/pl330.c
@@ -1035,18 +1035,7 @@
 	.remove = pl330_remove,
 };
 
-static int __init pl330_init(void)
-{
-	return amba_driver_register(&pl330_driver);
-}
-module_init(pl330_init);
-
-static void __exit pl330_exit(void)
-{
-	amba_driver_unregister(&pl330_driver);
-	return;
-}
-module_exit(pl330_exit);
+module_amba_driver(pl330_driver);
 
 MODULE_AUTHOR("Jaswinder Singh <jassi.brar@samsung.com>");
 MODULE_DESCRIPTION("API Driver for PL330 DMAC");