diff --git a/drivers/tty/serial/msm_serial_hs.c b/drivers/tty/serial/msm_serial_hs.c
index 830ef92ffe80..fc9faaee3170 100644
--- a/drivers/tty/serial/msm_serial_hs.c
+++ b/drivers/tty/serial/msm_serial_hs.c
@@ -272,7 +272,7 @@ static struct of_device_id msm_hs_match_table[] = {
 #define UARTDM_TX_BUF_SIZE UART_XMIT_SIZE
 #define UARTDM_RX_BUF_SIZE 512
 #define RETRY_TIMEOUT 5
-#define UARTDM_NR 256
+#define UARTDM_NR 4
 #define BAM_PIPE_MIN 0
 #define BAM_PIPE_MAX 11
 #define BUS_SCALING 1