summaryrefslogtreecommitdiff
path: root/drivers/tty/serial
diff options
context:
space:
mode:
authorUwe Kleine-König <u.kleine-koenig@pengutronix.de>2016-03-24 14:24:20 +0100
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2016-04-30 09:26:55 -0700
commite881d3f3fafc849356ecd1e3a2f3bf669476ed2d (patch)
tree784054e9e646eae5e14b15b222a5cbf3d4b2e091 /drivers/tty/serial
parent06ed48b7ee0c1b3c1dee6f2c90333109cf7db6ac (diff)
serial: imx: fix polarity of RI
When in DTE mode, the bit USR2_RIIN is active low. So invert the logic accordingly. Fixes: 90ebc4838666 ("serial: imx: repair and complete handshaking") Signed-off-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial')
-rw-r--r--drivers/tty/serial/imx.c6
1 files changed, 3 insertions, 3 deletions
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 66cc3d198dcf..7cfb482bbc5c 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -800,9 +800,9 @@ static unsigned int imx_get_hwmctrl(struct imx_port *sport)
if (!(usr1 & USR2_DCDIN))
tmp |= TIOCM_CAR;
- /* in DCE mode RIIN is always 0 */
- if (readl(sport->port.membase + USR2) & USR2_RIIN)
- tmp |= TIOCM_RI;
+ if (sport->dte_mode)
+ if (!(readl(sport->port.membase + USR2) & USR2_RIIN))
+ tmp |= TIOCM_RI;
return tmp;
}