diff options
| -rw-r--r-- | drivers/tty/serial/imx.c | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/drivers/tty/serial/imx.c b/drivers/tty/serial/imx.c index d2c7d88d5774..c2b29fd66e8a 100644 --- a/drivers/tty/serial/imx.c +++ b/drivers/tty/serial/imx.c @@ -2092,6 +2092,12 @@ static int serial_imx_probe(struct platform_device *pdev) uart_get_rs485_mode(&pdev->dev, &sport->port.rs485); + if (sport->port.rs485.flags & SER_RS485_ENABLED && + (!sport->have_rtscts || !sport->have_rtsgpio)) + dev_err(&pdev->dev, "no RTS control, disabling rs485\n"); + + imx_rs485_config(&sport->port, &sport->port.rs485); + /* Disable interrupts before requesting them */ reg = readl_relaxed(sport->port.membase + UCR1); reg &= ~(UCR1_ADEN | UCR1_TRDYEN | UCR1_IDEN | UCR1_RRDYEN | |