diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index a1d8174a098bdca005b19269aff85a5623d330f9..a70356dad1b75a4a1e4a5d68344aaf51f6f96ef7 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -763,12 +763,13 @@ static unsigned int imx_get_hwmctrl(struct imx_port *sport)
 {
 	unsigned int tmp = TIOCM_DSR;
 	unsigned usr1 = readl(sport->port.membase + USR1);
+	unsigned usr2 = readl(sport->port.membase + USR2);
 
 	if (usr1 & USR1_RTSS)
 		tmp |= TIOCM_CTS;
 
 	/* in DCE mode DCDIN is always 0 */
-	if (!(usr1 & USR2_DCDIN))
+	if (!(usr2 & USR2_DCDIN))
 		tmp |= TIOCM_CAR;
 
 	if (sport->dte_mode)