diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/tty/serial/fsl_lpuart.c | 28 |
1 files changed, 1 insertions, 27 deletions
diff --git a/drivers/tty/serial/fsl_lpuart.c b/drivers/tty/serial/fsl_lpuart.c index 080b462c61dc..895766599b84 100644 --- a/drivers/tty/serial/fsl_lpuart.c +++ b/drivers/tty/serial/fsl_lpuart.c @@ -1403,17 +1403,7 @@ static int lpuart32_config_rs485(struct uart_port *port, static unsigned int lpuart_get_mctrl(struct uart_port *port) { - unsigned int temp = 0; - unsigned char reg; - - reg = readb(port->membase + UARTMODEM); - if (reg & UARTMODEM_TXCTSE) - temp |= TIOCM_CTS; - - if (reg & UARTMODEM_RXRTSE) - temp |= TIOCM_RTS; - - return temp; + return 0; } static unsigned int lpuart32_get_mctrl(struct uart_port *port) @@ -1423,23 +1413,7 @@ static unsigned int lpuart32_get_mctrl(struct uart_port *port) static void lpuart_set_mctrl(struct uart_port *port, unsigned int mctrl) { - unsigned char temp; - struct lpuart_port *sport = container_of(port, - struct lpuart_port, port); - - /* Make sure RXRTSE bit is not set when RS485 is enabled */ - if (!(sport->port.rs485.flags & SER_RS485_ENABLED)) { - temp = readb(sport->port.membase + UARTMODEM) & - ~(UARTMODEM_RXRTSE | UARTMODEM_TXCTSE); - - if (mctrl & TIOCM_RTS) - temp |= UARTMODEM_RXRTSE; - if (mctrl & TIOCM_CTS) - temp |= UARTMODEM_TXCTSE; - - writeb(temp, port->membase + UARTMODEM); - } } static void lpuart32_set_mctrl(struct uart_port *port, unsigned int mctrl) |