[PATCH v7 1/2] serial: imx: Use common rs485 device tree parsing function

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From: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>

This adds support for the rs485 specific properties defined in
Documentation/devicetree/bindings/serial/rs485.txt.

Signed-off-by: Sascha Hauer <s.hauer@xxxxxxxxxxxxxx>
Signed-off-by: Uwe Kleine-König <u.kleine-koenig@xxxxxxxxxxxxxx>
Forwarded: id:20170913081833.2740-7-u.kleine-koenig@xxxxxxxxxxxxxx (v5)
---
 drivers/tty/serial/imx.c | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c
index fe368a46f8fe..283cfd96c0f8 100644
--- a/drivers/tty/serial/imx.c
+++ b/drivers/tty/serial/imx.c
@@ -2051,6 +2051,8 @@ static int serial_imx_probe_dt(struct imx_port *sport,
 	if (of_get_property(np, "rts-gpios", NULL))
 		sport->have_rtsgpio = 1;
 
+	of_get_rs485_mode(np, &sport->port.rs485);
+
 	return 0;
 }
 #else
@@ -2112,7 +2114,7 @@ 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;
+	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

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