diff options
Diffstat (limited to 'drivers/serial/serial_core.c')
| -rw-r--r-- | drivers/serial/serial_core.c | 20 |
1 files changed, 14 insertions, 6 deletions
diff --git a/drivers/serial/serial_core.c b/drivers/serial/serial_core.c index 3bb5d24..276da14 100644 --- a/drivers/serial/serial_core.c +++ b/drivers/serial/serial_core.c @@ -371,7 +371,8 @@ uart_get_baud_rate(struct uart_port *port, struct ktermios *termios, */ termios->c_cflag &= ~CBAUD; if (old) { - termios->c_cflag |= old->c_cflag & CBAUD; + baud = tty_termios_baud_rate(old); + tty_termios_encode_baud_rate(termios, baud, baud); old = NULL; continue; } @@ -380,7 +381,7 @@ uart_get_baud_rate(struct uart_port *port, struct ktermios *termios, * As a last resort, if the quotient is zero, * default to 9600 bps */ - termios->c_cflag |= B9600; + tty_termios_encode_baud_rate(termios, 9600, 9600); } return 0; @@ -1977,6 +1978,7 @@ int uart_suspend_port(struct uart_driver *drv, struct uart_port *port) if (state->info && state->info->flags & UIF_INITIALIZED) { const struct uart_ops *ops = port->ops; + int tries; state->info->flags = (state->info->flags & ~UIF_INITIALIZED) | UIF_SUSPENDED; @@ -1990,9 +1992,14 @@ int uart_suspend_port(struct uart_driver *drv, struct uart_port *port) /* * Wait for the transmitter to empty. */ - while (!ops->tx_empty(port)) { + for (tries = 3; !ops->tx_empty(port) && tries; tries--) { msleep(10); } + if (!tries) + printk(KERN_ERR "%s%s%s%d: Unable to drain transmitter\n", + port->dev ? port->dev->bus_id : "", + port->dev ? ": " : "", + drv->dev_name, port->line); ops->shutdown(port); } @@ -2029,8 +2036,6 @@ int uart_resume_port(struct uart_driver *drv, struct uart_port *port) } port->suspended = 0; - uart_change_pm(state, 0); - /* * Re-enable the console device after suspending. */ @@ -2049,6 +2054,7 @@ int uart_resume_port(struct uart_driver *drv, struct uart_port *port) if (state->info && state->info->tty && termios.c_cflag == 0) termios = *state->info->tty->termios; + uart_change_pm(state, 0); port->ops->set_termios(port, &termios, NULL); console_start(port->cons); } @@ -2057,6 +2063,7 @@ int uart_resume_port(struct uart_driver *drv, struct uart_port *port) const struct uart_ops *ops = port->ops; int ret; + uart_change_pm(state, 0); ops->set_mctrl(port, 0); ret = ops->startup(port); if (ret == 0) { @@ -2150,10 +2157,11 @@ uart_configure_port(struct uart_driver *drv, struct uart_state *state, /* * Ensure that the modem control lines are de-activated. + * keep the DTR setting that is set in uart_set_options() * We probably don't need a spinlock around this, but */ spin_lock_irqsave(&port->lock, flags); - port->ops->set_mctrl(port, 0); + port->ops->set_mctrl(port, port->mctrl & TIOCM_DTR); spin_unlock_irqrestore(&port->lock, flags); /* |
