uart_get_rs485_mode(&pdev->dev, &sport->port.rs485);
- if (sport->port.rs485.flags & SER_RS485_RX_DURING_TX) {
+ if (sport->port.rs485.flags & SER_RS485_RX_DURING_TX)
dev_err(&pdev->dev, "driver doesn't support RX during TX\n");
- return -ENOSYS;
- }
if (sport->port.rs485.delay_rts_before_send ||
- sport->port.rs485.delay_rts_after_send) {
+ sport->port.rs485.delay_rts_after_send)
dev_err(&pdev->dev, "driver doesn't support RTS delays\n");
- return -ENOSYS;
- }
- if (sport->port.rs485.flags & SER_RS485_ENABLED) {
- sport->port.rs485.flags |= SER_RS485_RTS_ON_SEND;
- writeb(UARTMODEM_TXRTSE, sport->port.membase + UARTMODEM);
- }
+ lpuart_config_rs485(&sport->port, &sport->port.rs485);
sport->dma_tx_chan = dma_request_slave_channel(sport->port.dev, "tx");
if (!sport->dma_tx_chan)