tty: Pull the dtr raise into tty port
This moves another per device special out of what should be shared open
wait paths into private methods
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
diff --git a/drivers/char/synclink.c b/drivers/char/synclink.c
index fb2e6b5..ac9f21e 100644
--- a/drivers/char/synclink.c
+++ b/drivers/char/synclink.c
@@ -3298,6 +3298,18 @@
return (info->serial_signals & SerialSignal_DCD) ? 1 : 0;
}
+static void raise_dtr_rts(struct tty_port *port)
+{
+ struct mgsl_struct *info = container_of(port, struct mgsl_struct, port);
+ unsigned long flags;
+
+ spin_lock_irqsave(&info->irq_spinlock,flags);
+ info->serial_signals |= SerialSignal_RTS + SerialSignal_DTR;
+ usc_set_serial_signals(info);
+ spin_unlock_irqrestore(&info->irq_spinlock,flags);
+}
+
+
/* block_til_ready()
*
* Block the current process until the specified port
@@ -3358,12 +3370,8 @@
port->blocked_open++;
while (1) {
- if (tty->termios->c_cflag & CBAUD) {
- spin_lock_irqsave(&info->irq_spinlock,flags);
- info->serial_signals |= SerialSignal_RTS + SerialSignal_DTR;
- usc_set_serial_signals(info);
- spin_unlock_irqrestore(&info->irq_spinlock,flags);
- }
+ if (tty->termios->c_cflag & CBAUD)
+ tty_port_raise_dtr_rts(port);
set_current_state(TASK_INTERRUPTIBLE);
@@ -4321,6 +4329,7 @@
static const struct tty_port_operations mgsl_port_ops = {
.carrier_raised = carrier_raised,
+ .raise_dtr_rts = raise_dtr_rts,
};