diff options
Diffstat (limited to 'drivers/char/synclink_gt.c')
| -rw-r--r-- | drivers/char/synclink_gt.c | 21 |
1 files changed, 15 insertions, 6 deletions
diff --git a/drivers/char/synclink_gt.c b/drivers/char/synclink_gt.c index 39ccaba8ca37..625c9bde3be8 100644 --- a/drivers/char/synclink_gt.c +++ b/drivers/char/synclink_gt.c @@ -3143,6 +3143,18 @@ static int carrier_raised(struct tty_port *port) return (info->signals & SerialSignal_DCD) ? 1 : 0; } +static void raise_dtr_rts(struct tty_port *port) +{ + unsigned long flags; + struct slgt_info *info = container_of(port, struct slgt_info, port); + + spin_lock_irqsave(&info->lock,flags); + info->signals |= SerialSignal_RTS + SerialSignal_DTR; + set_signals(info); + spin_unlock_irqrestore(&info->lock,flags); +} + + /* * block current process until the device is ready to open */ @@ -3187,12 +3199,8 @@ static int block_til_ready(struct tty_struct *tty, struct file *filp, port->blocked_open++; while (1) { - if ((tty->termios->c_cflag & CBAUD)) { - spin_lock_irqsave(&info->lock,flags); - info->signals |= SerialSignal_RTS + SerialSignal_DTR; - set_signals(info); - spin_unlock_irqrestore(&info->lock,flags); - } + if ((tty->termios->c_cflag & CBAUD)) + tty_port_raise_dtr_rts(port); set_current_state(TASK_INTERRUPTIBLE); @@ -3455,6 +3463,7 @@ static void add_device(struct slgt_info *info) static const struct tty_port_operations slgt_port_ops = { .carrier_raised = carrier_raised, + .raise_dtr_rts = raise_dtr_rts, }; /* |