--- a/drivers/tty/serial/bcm63xx_uart.c
+++ b/drivers/tty/serial/bcm63xx_uart.c
@@ -916,7 +916,7 @@ static void __exit bcm_uart_exit(void)
 	uart_unregister_driver(&bcm_uart_driver);
 }
 
-module_init(bcm_uart_init);
+subsys_initcall(bcm_uart_init);
 module_exit(bcm_uart_exit);
 
 MODULE_AUTHOR("Maxime Bizon <mbizon@freebox.fr>");