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| author |   Lukas Wunner <lukas@wunner.de> | 2017-11-24 23:26:40 +0100 |
|---|---|---|
| committer |   Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-11-28 16:05:19 +0100 |
| commit | f1e5b618c1c26cb8b5818e36f996e8c2fbedbeb7 (patch) | |
| tree | d75fec5220f2f86305a22a7c877cfe272d85309a /drivers/tty/serial/imx.c | |
| parent | dt-bindings: serial: Add common rs485 binding for RTS polarity (diff) | |
| download | linux-dev-f1e5b618c1c26cb8b5818e36f996e8c2fbedbeb7.tar.xz linux-dev-f1e5b618c1c26cb8b5818e36f996e8c2fbedbeb7.zip | |
serial: core: Support common rs485 binding for RTS polarity
When a driver invokes the uart_get_rs485_mode() helper, set the RTS
polarity to active high by default unless the newly introduced
"rs485-rts-active-low" property was specified.
imx contains a line to set the default RTS polarity to active high,
it is now superfluous and hence deleted.
omap-serial historically defaults to active low and supports an
"rs485-rts-active-high" property to inverse the polarity.
Retain that behavior for compatibility.
Cc: Mark Jackson <mpfj@newflow.co.uk>
Cc: Michał Oleszczyk <oleszczyk.m@gmail.com>
Cc: Rafael Gago Castano <rgc@hms.se>
Cc: Sascha Hauer <s.hauer@pengutronix.de>
Signed-off-by: Lukas Wunner <lukas@wunner.de>
Acked-by: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/imx.c')
| -rw-r--r-- | drivers/tty/serial/imx.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index aca3b7dbd09c..d2c7d88d5774 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -2060,7 +2060,6 @@ 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.flags = UPF_BOOT_AUTOCONF; timer_setup(&sport->timer, imx_timeout, 0); |