diff options
| -rw-r--r-- | drivers/tty/serial/ar933x_uart.c | 7 |
1 files changed, 7 insertions, 0 deletions
diff --git a/drivers/tty/serial/ar933x_uart.c b/drivers/tty/serial/ar933x_uart.c index 0a4020dba165..925484a42c82 100644 --- a/drivers/tty/serial/ar933x_uart.c +++ b/drivers/tty/serial/ar933x_uart.c @@ -583,6 +583,13 @@ static const struct uart_ops ar933x_uart_ops = { static int ar933x_config_rs485(struct uart_port *port, struct ktermios *termios, struct serial_rs485 *rs485conf) { + struct ar933x_uart_port *up = + container_of(port, struct ar933x_uart_port, port); + + if (port->rs485.flags & SER_RS485_ENABLED) + gpiod_set_value(up->rts_gpiod, + !!(rs485conf->flags & SER_RS485_RTS_AFTER_SEND)); + return 0; } |