diff --git a/drivers/tty/serial/msm_serial_hs.c b/drivers/tty/serial/msm_serial_hs.c
index e649340e7aae..b8ab3bec7727 100644
--- a/drivers/tty/serial/msm_serial_hs.c
+++ b/drivers/tty/serial/msm_serial_hs.c
@@ -50,6 +50,7 @@
 #include <linux/ipc_logging.h>
 #include <asm/irq.h>
 #include <linux/kthread.h>
+#include <uapi/linux/sched.h>
 
 #include <linux/msm-sps.h>
 #include <linux/platform_data/msm_serial_hs.h>
@@ -3288,6 +3289,7 @@ static void  msm_serial_hs_rt_init(struct uart_port *uport)
 	msm_uport->pm_state = MSM_HS_PM_SUSPENDED;
 	mutex_unlock(&msm_uport->mtx);
 	pm_runtime_enable(uport->dev);
+	tty_port_set_policy(&uport->state->port, SCHED_FIFO, 1);
 }
 
 static int msm_hs_runtime_suspend(struct device *dev)