Commit 21c4e7f2 authored by Ricardo Ribalda Delgado's avatar Ricardo Ribalda Delgado Committed by Greg Kroah-Hartman
Browse files

serial: 8250_fintek: Disable delays for ports != 0 



According to the datasheet, only the first port supports delay before
send and delay after send.

Reported-by: default avatar"Ji-Ze Hong (Peter Hong)" <hpeter@gmail.com>
Signed-off-by: default avatarRicardo Ribalda Delgado <ricardo.ribalda@gmail.com>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 7ecc7701

drivers/tty/serial/8250/8250_fintek.c

+6 −0
Original line number Diff line number Diff line
@@ -212,6 +212,12 @@ static int fintek_8250_rs485_config(struct uart_port *port, 
	rs485->flags &= SER_RS485_ENABLED | SER_RS485_RTS_ON_SEND |

			SER_RS485_RTS_AFTER_SEND;



	/* Only the first port supports delays */

	if (pdata->index) {

		rs485->delay_rts_before_send = 0;

		rs485->delay_rts_after_send = 0;

	}



	if (rs485->delay_rts_before_send) {

		rs485->delay_rts_before_send = 1;

		config |= TXW4C_IRA;