diff options
| author | Uwe Kleine-König <u.kleine-koenig@pengutronix.de> | 2017-07-18 13:59:40 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2017-07-30 17:46:06 +0300 |
| commit | 68c338eaa0bf3e399a1b96ac35d909f0b475208f (patch) | |
| tree | 6f05833cf29b5e9dd6f5be620660a36cfedad6b4 /drivers/tty/serial/fsl_lpuart.c | |
| parent | 7d8905d064058f4b65057e0101588f362f288bc0 (diff) | |
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: Uwe Kleine-König <u.kleine-koenig@pengutronix.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'drivers/tty/serial/fsl_lpuart.c')
| -rw-r--r-- | drivers/tty/serial/fsl_lpuart.c | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index 5b4721bd70f0..d24270fe3cbe 100644 --- a/drivers/tty/serial/fsl_lpuart.c +++ b/drivers/tty/serial/fsl_lpuart.c @@ -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; |