1 files changed, 1 insertions, 1 deletions

diff --git a/drivers/serial/of_serial.c b/drivers/serial/of_serial.c
index 54483cd3529e..02406ba6da1c 100644
--- a/drivers/serial/of_serial.c
+++ b/drivers/serial/of_serial.c
@@ -67,7 +67,7 @@ static int __devinit of_platform_serial_setup(struct of_device *ofdev,
         port->type = type;
         port->uartclk = *clk;
         port->flags = UPF_SHARE_IRQ | UPF_BOOT_AUTOCONF | UPF_IOREMAP
-                | UPF_FIXED_PORT;
+                | UPF_FIXED_PORT | UPF_FIXED_TYPE;
         port->dev = &ofdev->dev;
         /* If current-speed was set, then try not to change it. */
         if (spd)