SERIAL: omap: allow hardware assisted IXANY mode to be disabled

Nothing was clearing the UART_MCR_XONANY bit, so once the ixany
mode gets set, there's no possibility to disable it.  Clear this
bit when IXANY mode is cleared.

Signed-off-by: Russell King <rmk+kernel@arm.linux.org.uk>

1 files changed, 2 insertions, 0 deletions

diff --git a/drivers/tty/serial/omap-serial.c b/drivers/tty/serial/omap-serial.c
index b6a1925dfc92..f5b2f395af2d 100644
--- a/drivers/tty/serial/omap-serial.c
+++ b/drivers/tty/serial/omap-serial.c
@@ -698,6 +698,8 @@ serial_omap_configure_xonxoff
          */
         if (termios->c_iflag & IXANY)
                 up->mcr |= UART_MCR_XONANY;
+        else
+                up->mcr &= ~UART_MCR_XONANY;
 
         serial_out(up, UART_MCR, up->mcr | UART_MCR_TCRTLR);
         serial_out(up, UART_LCR, UART_LCR_CONF_MODE_B);