diff options
Diffstat (limited to 'drivers/tty')
| -rw-r--r-- | drivers/tty/serial/xilinx_uartps.c | 14 |
1 files changed, 9 insertions, 5 deletions
diff --git a/drivers/tty/serial/xilinx_uartps.c b/drivers/tty/serial/xilinx_uartps.c index f33b89587786..958c3b4712fb 100644 --- a/drivers/tty/serial/xilinx_uartps.c +++ b/drivers/tty/serial/xilinx_uartps.c @@ -690,7 +690,7 @@ static void cdns_uart_break_ctl(struct uart_port *port, int ctl) static void cdns_uart_set_termios(struct uart_port *port, struct ktermios *termios, struct ktermios *old) { - unsigned int cval = 0; + u32 cval = 0; unsigned int baud, minbaud, maxbaud; unsigned long flags; unsigned int ctrl_reg, mode_reg, val; @@ -811,6 +811,13 @@ static void cdns_uart_set_termios(struct uart_port *port, cval |= mode_reg & 1; writel(cval, port->membase + CDNS_UART_MR); + cval = readl(port->membase + CDNS_UART_MODEMCR); + if (termios->c_cflag & CRTSCTS) + cval |= CDNS_UART_MODEMCR_FCM; + else + cval &= ~CDNS_UART_MODEMCR_FCM; + writel(cval, port->membase + CDNS_UART_MODEMCR); + spin_unlock_irqrestore(&port->lock, flags); } @@ -1045,12 +1052,9 @@ static void cdns_uart_set_mctrl(struct uart_port *port, unsigned int mctrl) val = readl(port->membase + CDNS_UART_MODEMCR); mode_reg = readl(port->membase + CDNS_UART_MR); - val &= ~(CDNS_UART_MODEMCR_RTS | CDNS_UART_MODEMCR_DTR | - CDNS_UART_MODEMCR_FCM); + val &= ~(CDNS_UART_MODEMCR_RTS | CDNS_UART_MODEMCR_DTR); mode_reg &= ~CDNS_UART_MR_CHMODE_MASK; - if (mctrl & TIOCM_RTS || mctrl & TIOCM_DTR) - val |= CDNS_UART_MODEMCR_FCM; if (mctrl & TIOCM_LOOP) mode_reg |= CDNS_UART_MR_CHMODE_L_LOOP; else |