diff --git a/drivers/serial/s3c2410.c b/drivers/serial/s3c2410.c
index ffc6138..bd6782a 100644
--- a/drivers/serial/s3c2410.c
+++ b/drivers/serial/s3c2410.c
@@ -1156,7 +1156,7 @@
 
 #ifdef CONFIG_PM
 
-int s3c24xx_serial_suspend(struct device *dev, u32 state, u32 level)
+int s3c24xx_serial_suspend(struct device *dev, pm_message_t state, u32 level)
 {
 	struct uart_port *port = s3c24xx_dev_to_port(dev);