[PATCH RESEND 6/8] serial: 8250: update rs485 flags with polarity settings
From: Wolfram Sang <hidden>
Date: 2011-12-09 17:08:48
Also in:
lkml
Subsystem:
8250/16?50 (and clone uarts) serial driver, the rest, tty layer and serial drivers · Maintainers:
Greg Kroah-Hartman, Linus Torvalds, Jiri Slaby
Report the only mode we can support with the 16C850. Signed-off-by: Wolfram Sang <redacted> --- 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