1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index b1893f3f88f1..7ec911000ec2 100644
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -1076,6 +1076,8 @@ static int lpuart_startup(struct uart_port *port)
         sport->txfifo_size = 0x1 << (((temp >> UARTPFIFO_TXSIZE_OFF) &
                 UARTPFIFO_FIFOSIZE_MASK) + 1);
 
+        sport->port.fifosize = sport->txfifo_size;
+
         sport->rxfifo_size = 0x1 << (((temp >> UARTPFIFO_RXSIZE_OFF) &
                 UARTPFIFO_FIFOSIZE_MASK) + 1);