[PATCH] serial/imx: disable hardware flow control at startup
From: Markus Pargmann <hidden>
Date: 2013-05-30 13:47:04
Also in:
linux-serial
Subsystem:
the rest, tty layer and serial drivers · Maintainers:
Linus Torvalds, Greg Kroah-Hartman, Jiri Slaby
From: Lucas Stach <l.stach@pengutronix.de> We only want to enable hardware flow control if RTS/CTS pins are connected. Signed-off-by: Lucas Stach <l.stach@pengutronix.de> Signed-off-by: Markus Pargmann <redacted> --- drivers/tty/serial/imx.c | 2 ++ 1 file changed, 2 insertions(+)
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 147c9e1..8cdfbd3 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c@@ -761,6 +761,8 @@ static int imx_startup(struct uart_port *port) temp = readl(sport->port.membase + UCR2); temp |= (UCR2_RXEN | UCR2_TXEN); + if (!sport->have_rtscts) + temp |= UCR2_IRTS; writel(temp, sport->port.membase + UCR2); if (USE_IRDA(sport)) {
--
1.8.2.1