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@xxxxxxxxxxxxxx>
---
drivers/tty/serial/imx.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 231e7d5caf6c..bfc4555c63d1 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -797,9 +797,9 @@ 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;
}
--
2.7.0
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