diff options
Diffstat (limited to 'drivers/tty/serial/imx.c')
| -rw-r--r-- | drivers/tty/serial/imx.c | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index a70356dad1b7..33fcc84e756b 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -205,6 +205,7 @@ struct imx_port { struct timer_list timer; unsigned int old_status; unsigned int have_rtscts:1; + unsigned int have_rtsgpio:1; unsigned int dte_mode:1; unsigned int irda_inv_rx:1; unsigned int irda_inv_tx:1; @@ -1725,7 +1726,7 @@ static int imx_rs485_config(struct uart_port *port, rs485conf->delay_rts_after_send = 0; /* RTS is required to control the transmitter */ - if (!sport->have_rtscts) + if (!sport->have_rtscts && !sport->have_rtsgpio) rs485conf->flags &= ~SER_RS485_ENABLED; if (rs485conf->flags & SER_RS485_ENABLED) { @@ -2048,6 +2049,9 @@ 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_get_property(np, "rts-gpios", NULL)) + sport->have_rtsgpio = 1; + return 0; } #else |