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serial: fsl_lpuart: fix RS485 RTS polariy inverse issue
The previous 'commit846651eca0
("serial: fsl_lpuart: RS485 RTS polariy is inverse")' only fixed the inverse issue on lpuart 8bit platforms. This is a follow-up patch to fix the RS485 polarity inverse issue on lpuart 32bit platforms. Fixes:03895cf41d
("tty: serial: fsl_lpuart: Add support for RS-485") Reported-by: Sherry Sun <sherry.sun@nxp.com> Signed-off-by: Shenwei Wang <shenwei.wang@nxp.com> Link: https://lore.kernel.org/r/20230207162420.3647904-1-shenwei.wang@nxp.com Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
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@ -1413,9 +1413,9 @@ static int lpuart32_config_rs485(struct uart_port *port, struct ktermios *termio
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* Note: UART is assumed to be active high.
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*/
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if (rs485->flags & SER_RS485_RTS_ON_SEND)
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modem &= ~UARTMODEM_TXRTSPOL;
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else if (rs485->flags & SER_RS485_RTS_AFTER_SEND)
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modem |= UARTMODEM_TXRTSPOL;
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else if (rs485->flags & SER_RS485_RTS_AFTER_SEND)
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modem &= ~UARTMODEM_TXRTSPOL;
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}
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lpuart32_write(&sport->port, modem, UARTMODIR);
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