diff options
| author | Bhuvanchandra DV <bhuvanchandra.dv@toradex.com> | 2017-05-23 15:02:46 +0530 |
|---|---|---|
| committer | Marcel Ziswiler <marcel.ziswiler@toradex.com> | 2017-12-21 14:27:48 +0100 |
| commit | 4cbb74dcbf64c74690812164c19e53e32eea471f (patch) | |
| tree | 0b154941f6e7603f3a2d12ec36992b731e820515 /drivers | |
| parent | af155c0c056d40acb06dbf863589af65ebe8efa7 (diff) | |
tty: serial: imx: Add support for enabling RS485 via device tree
Add support to enable RS485 via device tree
Signed-off-by: Bhuvanchandra DV <bhuvanchandra.dv@toradex.com>
Signed-off-by: Stefan Agner <stefan.agner@toradex.com>
(cherry picked from commit b8e5d21a1351bc0e45ae1762f0799b428d9993ea)
Diffstat (limited to 'drivers')
| -rw-r--r-- | drivers/tty/serial/imx.c | 7 |
1 files changed, 5 insertions, 2 deletions
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index 6592c53af734..59f9bbfd4922 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -2076,6 +2076,11 @@ static int serial_imx_probe_dt(struct imx_port *sport, if (of_get_property(np, "fsl,dte-mode", NULL)) sport->dte_mode = 1; + if (of_property_read_bool(np, "linux,rs485-enabled-at-boot-time")) { + sport->port.rs485.flags |= SER_RS485_ENABLED; + sport->port.rs485.flags |= SER_RS485_RTS_AFTER_SEND; + } + return 0; } #else @@ -2137,8 +2142,6 @@ 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 | SER_RS485_RX_DURING_TX; sport->port.flags = UPF_BOOT_AUTOCONF; init_timer(&sport->timer); sport->timer.function = imx_timeout; |