leds: convert led platform drivers to module_platform_driver

Factor out some boilerplate code for platform driver registration into
module_platform_driver.

Signed-off-by: Axel Lin <axel.lin@gmail.com>
Acked-by: Haojian Zhuang <hzhuang1@marvell.com>		[led-88pm860x.c]
Acked-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Cc: Richard Purdie <rpurdie@rpsys.net>
Cc: Michael Hennerich <hennerich@blackfin.uclinux.org>
Cc: Mike Rapoport <mike@compulab.co.il>
Cc: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/leds/leds-renesas-tpu.c b/drivers/leds/leds-renesas-tpu.c
index 3ee540e..32fe337 100644
--- a/drivers/leds/leds-renesas-tpu.c
+++ b/drivers/leds/leds-renesas-tpu.c
@@ -339,18 +339,7 @@
 	}
 };
 
-static int __init r_tpu_init(void)
-{
-	return platform_driver_register(&r_tpu_device_driver);
-}
-
-static void __exit r_tpu_exit(void)
-{
-	platform_driver_unregister(&r_tpu_device_driver);
-}
-
-module_init(r_tpu_init);
-module_exit(r_tpu_exit);
+module_platform_driver(r_tpu_device_driver);
 
 MODULE_AUTHOR("Magnus Damm");
 MODULE_DESCRIPTION("Renesas TPU LED Driver");