tty: serial: fsl_lpuart: disable the break condition when shutdown the uart port

Need to disable the break condition for lpuart driver when closing
the uart port like other uart drivers do.

Signed-off-by: Sherry Sun <sherry.sun@nxp.com>
Link: https://lore.kernel.org/r/20221214031137.28815-3-sherry.sun@nxp.com
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c
index abe452f..63dff61 100644 (file)
--- a/drivers/tty/serial/fsl_lpuart.c
+++ b/drivers/tty/serial/fsl_lpuart.c
@@ -1828,10 +1828,10 @@ static void lpuart32_shutdown(struct uart_port *port)
        temp &= ~(UARTBAUD_TDMAE | UARTBAUD_RDMAE);
        lpuart32_write(port, temp, UARTBAUD);
 
-       /* disable Rx/Tx and interrupts */
+       /* disable Rx/Tx and interrupts and break condition */
        temp = lpuart32_read(port, UARTCTRL);
        temp &= ~(UARTCTRL_TE | UARTCTRL_RE | UARTCTRL_ILIE |
-                       UARTCTRL_TIE | UARTCTRL_TCIE | UARTCTRL_RIE);
+                       UARTCTRL_TIE | UARTCTRL_TCIE | UARTCTRL_RIE | UARTCTRL_SBK);
        lpuart32_write(port, temp, UARTCTRL);
 
        spin_unlock_irqrestore(&port->lock, flags);