Commit 68c338ea authored by Uwe Kleine-König's avatar Uwe Kleine-König Committed by Greg Kroah-Hartman
Browse files

serial: fsl_lpuart: clear unsupported options in .rs485_config() 



The struct serial_rs485 parameter is both input and output and is
supposed to hold the actually used configuration on return. So clear
unsupported settings.

Signed-off-by: default avatarUwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
parent 7d8905d0

drivers/tty/serial/fsl_lpuart.c

+5 −0
Original line number Diff line number Diff line
@@ -1076,6 +1076,11 @@ static int lpuart_config_rs485(struct uart_port *port, 
		~(UARTMODEM_TXRTSPOL | UARTMODEM_TXRTSE);

	writeb(modem, sport->port.membase + UARTMODEM);



	/* clear unsupported configurations */

	rs485->delay_rts_before_send = 0;

	rs485->delay_rts_after_send = 0;

	rs485->flags &= ~SER_RS485_RX_DURING_TX;



	if (rs485->flags & SER_RS485_ENABLED) {

		/* Enable auto RS-485 RTS mode */

		modem |= UARTMODEM_TXRTSE;