[PATCH v4 7/9] serial: imx: default to half duplex rs485

Uwe Kleine-König u.kleine-koenig at pengutronix.de
Tue Jul 18 03:59:46 PDT 2017


From: Sascha Hauer <s.hauer at pengutronix.de>

The i.MX driver defaulted to full duplex rs485 which is rather
unusual and doesn't match the default implemented in other drivers.

So change the default to half duplex.

Signed-off-by: Sascha Hauer <s.hauer at pengutronix.de>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig at pengutronix.de>
---
 drivers/tty/serial/imx.c | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index 80934e7bd67f..bb5cd8ff7d86 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -2120,8 +2120,7 @@ static int serial_imx_probe(struct platform_device *pdev)
 	sport->port.fifosize = 32;
 	sport->port.ops = &imx_pops;
 	sport->port.rs485_config = imx_rs485_config;
-	sport->port.rs485.flags =
-		SER_RS485_RTS_ON_SEND | SER_RS485_RX_DURING_TX;
+	sport->port.rs485.flags = SER_RS485_RTS_ON_SEND;
 	sport->port.flags = UPF_BOOT_AUTOCONF;
 	init_timer(&sport->timer);
 	sport->timer.function = imx_timeout;
-- 
2.11.0




More information about the linux-arm-kernel mailing list