usb: chipidea: usbmisc: use module_platform_driver

This patch converts the driver to use the module_platform_driver
macro which makes the code smaller and a bit simpler.

Signed-off-by: Philipp Zabel <p.zabel@pengutronix.de>
Signed-off-by: Michael Grzeschik <mgr@pengutronix.de>
Signed-off-by: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/drivers/usb/chipidea/usbmisc_imx.c b/drivers/usb/chipidea/usbmisc_imx.c
index 1c6610a..588bae8 100644
--- a/drivers/usb/chipidea/usbmisc_imx.c
+++ b/drivers/usb/chipidea/usbmisc_imx.c
@@ -243,17 +243,7 @@
 	 },
 };
 
-static int usbmisc_imx_drv_init(void)
-{
-	return platform_driver_register(&usbmisc_imx_driver);
-}
-subsys_initcall(usbmisc_imx_drv_init);
-
-static void usbmisc_imx_drv_exit(void)
-{
-	platform_driver_unregister(&usbmisc_imx_driver);
-}
-module_exit(usbmisc_imx_drv_exit);
+module_platform_driver(usbmisc_imx_driver);
 
 MODULE_ALIAS("platform:usbmisc-imx");
 MODULE_LICENSE("GPL v2");