From mboxrd@z Thu Jan 1 00:00:00 1970 From: Wolfram Sang Subject: [PATCH RESEND 6/8] serial: 8250: update rs485 flags with polarity settings Date: Fri, 9 Dec 2011 18:07:18 +0100 Message-ID: <1323450440-414-7-git-send-email-w.sang@pengutronix.de> References: <1323450440-414-1-git-send-email-w.sang@pengutronix.de> Return-path: In-Reply-To: <1323450440-414-1-git-send-email-w.sang@pengutronix.de> Sender: linux-kernel-owner@vger.kernel.org To: linux-serial@vger.kernel.org Cc: linux-kernel@vger.kernel.org, Greg KH , Alan Cox , Claudio Scordino , Wolfram Sang List-Id: linux-serial@vger.kernel.org Report the only mode we can support with the 16C850. Signed-off-by: Wolfram Sang --- drivers/tty/serial/8250.c | 3 +++ 1 files changed, 3 insertions(+), 0 deletions(-) diff --git a/drivers/tty/serial/8250.c b/drivers/tty/serial/8250.c index 28b3608..8cf6d76 100644 --- a/drivers/tty/serial/8250.c +++ b/drivers/tty/serial/8250.c @@ -2750,6 +2750,9 @@ static int serial8250_ioctl_port(struct uart_port *port, serial_outp(up, UART_LCR, lcr); spin_unlock_irqrestore(&up->port.lock, flags); + /* only mode supported by the 16C850 */ + rs485ctrl.flags &= ~SER_RS485_RTS_ON_SEND; + rs485ctrl.flags |= SER_RS485_RTS_AFTER_SEND; up->rs485_flags = rs485ctrl.flags; return 0; -- 1.7.7.3