diff --git a/drivers/char/synclinkmp.c b/drivers/char/synclinkmp.c
index 5341b5a..5b5b292 100644
--- a/drivers/char/synclinkmp.c
+++ b/drivers/char/synclinkmp.c
@@ -151,18 +151,15 @@
 typedef struct _synclinkmp_info {
 	void *if_ptr;				/* General purpose pointer (used by SPPP) */
 	int			magic;
-	int			flags;
-	int			count;		/* count of opens */
+	struct tty_port		port;
 	int			line;
 	unsigned short		close_delay;
 	unsigned short		closing_wait;	/* time to wait before closing */
 
 	struct mgsl_icount	icount;
 
-	struct tty_struct 	*tty;
 	int			timeout;
 	int			x_char;		/* xon/xoff character */
-	int			blocked_open;	/* # of blocked opens */
 	u16			read_status_mask1;  /* break detection (SR1 indications) */
 	u16			read_status_mask2;  /* parity/framing/overun (SR2 indications) */
 	unsigned char 		ignore_status_mask1;  /* break detection (SR1 indications) */
@@ -172,9 +169,6 @@
 	int			tx_get;
 	int			tx_count;
 
-	wait_queue_head_t	open_wait;
-	wait_queue_head_t	close_wait;
-
 	wait_queue_head_t	status_event_wait_q;
 	wait_queue_head_t	event_wait_q;
 	struct timer_list	tx_timer;	/* HDLC transmit timeout timer */
@@ -462,13 +456,13 @@
  * .text section address and breakpoint on module load.
  * This is useful for use with gdb and add-symbol-file command.
  */
-static int break_on_load=0;
+static int break_on_load = 0;
 
 /*
  * Driver major number, defaults to zero to get auto
  * assigned major number. May be forced as module parameter.
  */
-static int ttymajor=0;
+static int ttymajor = 0;
 
 /*
  * Array of user specified options for ISA adapters.
@@ -747,22 +741,22 @@
 	}
 
 	tty->driver_data = info;
-	info->tty = tty;
+	info->port.tty = tty;
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):%s open(), old ref count = %d\n",
-			 __FILE__,__LINE__,tty->driver->name, info->count);
+			 __FILE__,__LINE__,tty->driver->name, info->port.count);
 
 	/* If port is closing, signal caller to try again */
-	if (tty_hung_up_p(filp) || info->flags & ASYNC_CLOSING){
-		if (info->flags & ASYNC_CLOSING)
-			interruptible_sleep_on(&info->close_wait);
-		retval = ((info->flags & ASYNC_HUP_NOTIFY) ?
+	if (tty_hung_up_p(filp) || info->port.flags & ASYNC_CLOSING){
+		if (info->port.flags & ASYNC_CLOSING)
+			interruptible_sleep_on(&info->port.close_wait);
+		retval = ((info->port.flags & ASYNC_HUP_NOTIFY) ?
 			-EAGAIN : -ERESTARTSYS);
 		goto cleanup;
 	}
 
-	info->tty->low_latency = (info->flags & ASYNC_LOW_LATENCY) ? 1 : 0;
+	info->port.tty->low_latency = (info->port.flags & ASYNC_LOW_LATENCY) ? 1 : 0;
 
 	spin_lock_irqsave(&info->netlock, flags);
 	if (info->netcount) {
@@ -770,10 +764,10 @@
 		spin_unlock_irqrestore(&info->netlock, flags);
 		goto cleanup;
 	}
-	info->count++;
+	info->port.count++;
 	spin_unlock_irqrestore(&info->netlock, flags);
 
-	if (info->count == 1) {
+	if (info->port.count == 1) {
 		/* 1st open on this device, init hardware */
 		retval = startup(info);
 		if (retval < 0)
@@ -796,9 +790,9 @@
 cleanup:
 	if (retval) {
 		if (tty->count == 1)
-			info->tty = NULL; /* tty layer will release tty struct */
-		if(info->count)
-			info->count--;
+			info->port.tty = NULL; /* tty layer will release tty struct */
+		if(info->port.count)
+			info->port.count--;
 	}
 
 	return retval;
@@ -816,33 +810,33 @@
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):%s close() entry, count=%d\n",
-			 __FILE__,__LINE__, info->device_name, info->count);
+			 __FILE__,__LINE__, info->device_name, info->port.count);
 
-	if (!info->count)
+	if (!info->port.count)
 		return;
 
 	if (tty_hung_up_p(filp))
 		goto cleanup;
 
-	if ((tty->count == 1) && (info->count != 1)) {
+	if ((tty->count == 1) && (info->port.count != 1)) {
 		/*
 		 * tty->count is 1 and the tty structure will be freed.
-		 * info->count should be one in this case.
+		 * info->port.count should be one in this case.
 		 * if it's not, correct it so that the port is shutdown.
 		 */
 		printk("%s(%d):%s close: bad refcount; tty->count is 1, "
-		       "info->count is %d\n",
-			 __FILE__,__LINE__, info->device_name, info->count);
-		info->count = 1;
+		       "info->port.count is %d\n",
+			 __FILE__,__LINE__, info->device_name, info->port.count);
+		info->port.count = 1;
 	}
 
-	info->count--;
+	info->port.count--;
 
 	/* if at least one open remaining, leave hardware active */
-	if (info->count)
+	if (info->port.count)
 		goto cleanup;
 
-	info->flags |= ASYNC_CLOSING;
+	info->port.flags |= ASYNC_CLOSING;
 
 	/* set tty->closing to notify line discipline to
 	 * only process XON/XOFF characters. Only the N_TTY
@@ -859,7 +853,7 @@
 		tty_wait_until_sent(tty, info->closing_wait);
 	}
 
- 	if (info->flags & ASYNC_INITIALIZED)
+ 	if (info->port.flags & ASYNC_INITIALIZED)
  		wait_until_sent(tty, info->timeout);
 
 	flush_buffer(tty);
@@ -869,23 +863,23 @@
 	shutdown(info);
 
 	tty->closing = 0;
-	info->tty = NULL;
+	info->port.tty = NULL;
 
-	if (info->blocked_open) {
+	if (info->port.blocked_open) {
 		if (info->close_delay) {
 			msleep_interruptible(jiffies_to_msecs(info->close_delay));
 		}
-		wake_up_interruptible(&info->open_wait);
+		wake_up_interruptible(&info->port.open_wait);
 	}
 
-	info->flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
+	info->port.flags &= ~(ASYNC_NORMAL_ACTIVE|ASYNC_CLOSING);
 
-	wake_up_interruptible(&info->close_wait);
+	wake_up_interruptible(&info->port.close_wait);
 
 cleanup:
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):%s close() exit, count=%d\n", __FILE__,__LINE__,
-			tty->driver->name, info->count);
+			tty->driver->name, info->port.count);
 }
 
 /* Called by tty_hangup() when a hangup is signaled.
@@ -905,11 +899,11 @@
 	flush_buffer(tty);
 	shutdown(info);
 
-	info->count = 0;
-	info->flags &= ~ASYNC_NORMAL_ACTIVE;
-	info->tty = NULL;
+	info->port.count = 0;
+	info->port.flags &= ~ASYNC_NORMAL_ACTIVE;
+	info->port.tty = NULL;
 
-	wake_up_interruptible(&info->open_wait);
+	wake_up_interruptible(&info->port.open_wait);
 }
 
 /* Set new termios settings
@@ -1123,7 +1117,7 @@
 
 	lock_kernel();
 
-	if (!(info->flags & ASYNC_INITIALIZED))
+	if (!(info->port.flags & ASYNC_INITIALIZED))
 		goto exit;
 
 	orig_jiffies = jiffies;
@@ -1636,7 +1630,7 @@
 	unsigned short new_crctype;
 
 	/* return error if TTY interface open */
-	if (info->count)
+	if (info->port.count)
 		return -EBUSY;
 
 	switch (encoding)
@@ -1733,7 +1727,7 @@
 
 	/* arbitrate between network and tty opens */
 	spin_lock_irqsave(&info->netlock, flags);
-	if (info->count != 0 || info->netcount != 0) {
+	if (info->port.count != 0 || info->netcount != 0) {
 		printk(KERN_WARNING "%s: hdlc_open returning busy\n", dev->name);
 		spin_unlock_irqrestore(&info->netlock, flags);
 		return -EBUSY;
@@ -1819,7 +1813,7 @@
 		printk("%s:hdlcdev_ioctl(%s)\n",__FILE__,dev->name);
 
 	/* return error if TTY interface open */
-	if (info->count)
+	if (info->port.count)
 		return -EBUSY;
 
 	if (cmd != SIOCWANDEV)
@@ -2128,7 +2122,7 @@
 
 static void bh_transmit(SLMP_INFO *info)
 {
-	struct tty_struct *tty = info->tty;
+	struct tty_struct *tty = info->port.tty;
 
 	if ( debug_level >= DEBUG_LEVEL_BH )
 		printk( "%s(%d):%s bh_transmit() entry\n",
@@ -2178,7 +2172,7 @@
 
 static void isr_rxint(SLMP_INFO * info)
 {
- 	struct tty_struct *tty = info->tty;
+ 	struct tty_struct *tty = info->port.tty;
  	struct	mgsl_icount *icount = &info->icount;
 	unsigned char status = read_reg(info, SR1) & info->ie1_value & (FLGD + IDLD + CDCD + BRKD);
 	unsigned char status2 = read_reg(info, SR2) & info->ie2_value & OVRN;
@@ -2205,7 +2199,7 @@
 				if (!(status & info->ignore_status_mask1)) {
 					if (info->read_status_mask1 & BRKD) {
 						tty_insert_flip_char(tty, 0, TTY_BREAK);
-						if (info->flags & ASYNC_SAK)
+						if (info->port.flags & ASYNC_SAK)
 							do_SAK(tty);
 					}
 				}
@@ -2239,7 +2233,7 @@
 {
 	u16 status;
 	unsigned char DataByte;
- 	struct tty_struct *tty = info->tty;
+ 	struct tty_struct *tty = info->port.tty;
  	struct	mgsl_icount *icount = &info->icount;
 
 	if ( debug_level >= DEBUG_LEVEL_ISR )
@@ -2352,7 +2346,7 @@
 		else
 #endif
 		{
-			if (info->tty && (info->tty->stopped || info->tty->hw_stopped)) {
+			if (info->port.tty && (info->port.tty->stopped || info->port.tty->hw_stopped)) {
 				tx_stop(info);
 				return;
 			}
@@ -2407,7 +2401,7 @@
 		return;
 	}
 
-	if (info->tty && (info->tty->stopped || info->tty->hw_stopped)) {
+	if (info->port.tty && (info->port.tty->stopped || info->port.tty->hw_stopped)) {
 		tx_stop(info);
 		return;
 	}
@@ -2554,29 +2548,29 @@
 		wake_up_interruptible(&info->status_event_wait_q);
 		wake_up_interruptible(&info->event_wait_q);
 
-		if ( (info->flags & ASYNC_CHECK_CD) &&
+		if ( (info->port.flags & ASYNC_CHECK_CD) &&
 		     (status & MISCSTATUS_DCD_LATCHED) ) {
 			if ( debug_level >= DEBUG_LEVEL_ISR )
 				printk("%s CD now %s...", info->device_name,
 				       (status & SerialSignal_DCD) ? "on" : "off");
 			if (status & SerialSignal_DCD)
-				wake_up_interruptible(&info->open_wait);
+				wake_up_interruptible(&info->port.open_wait);
 			else {
 				if ( debug_level >= DEBUG_LEVEL_ISR )
 					printk("doing serial hangup...");
-				if (info->tty)
-					tty_hangup(info->tty);
+				if (info->port.tty)
+					tty_hangup(info->port.tty);
 			}
 		}
 
-		if ( (info->flags & ASYNC_CTS_FLOW) &&
+		if ( (info->port.flags & ASYNC_CTS_FLOW) &&
 		     (status & MISCSTATUS_CTS_LATCHED) ) {
-			if ( info->tty ) {
-				if (info->tty->hw_stopped) {
+			if ( info->port.tty ) {
+				if (info->port.tty->hw_stopped) {
 					if (status & SerialSignal_CTS) {
 						if ( debug_level >= DEBUG_LEVEL_ISR )
 							printk("CTS tx start...");
-			 			info->tty->hw_stopped = 0;
+			 			info->port.tty->hw_stopped = 0;
 						tx_start(info);
 						info->pending_bh |= BH_TRANSMIT;
 						return;
@@ -2585,7 +2579,7 @@
 					if (!(status & SerialSignal_CTS)) {
 						if ( debug_level >= DEBUG_LEVEL_ISR )
 							printk("CTS tx stop...");
-			 			info->tty->hw_stopped = 1;
+			 			info->port.tty->hw_stopped = 1;
 						tx_stop(info);
 					}
 				}
@@ -2701,7 +2695,7 @@
 		 * do not request bottom half processing if the
 		 * device is not open in a normal mode.
 		 */
-		if ( port && (port->count || port->netcount) &&
+		if ( port && (port->port.count || port->netcount) &&
 		     port->pending_bh && !port->bh_running &&
 		     !port->bh_requested ) {
 			if ( debug_level >= DEBUG_LEVEL_ISR )
@@ -2727,7 +2721,7 @@
 	if ( debug_level >= DEBUG_LEVEL_INFO )
 		printk("%s(%d):%s tx_releaseup()\n",__FILE__,__LINE__,info->device_name);
 
-	if (info->flags & ASYNC_INITIALIZED)
+	if (info->port.flags & ASYNC_INITIALIZED)
 		return 0;
 
 	if (!info->tx_buf) {
@@ -2750,10 +2744,10 @@
 
 	mod_timer(&info->status_timer, jiffies + msecs_to_jiffies(10));
 
-	if (info->tty)
-		clear_bit(TTY_IO_ERROR, &info->tty->flags);
+	if (info->port.tty)
+		clear_bit(TTY_IO_ERROR, &info->port.tty->flags);
 
-	info->flags |= ASYNC_INITIALIZED;
+	info->port.flags |= ASYNC_INITIALIZED;
 
 	return 0;
 }
@@ -2764,7 +2758,7 @@
 {
 	unsigned long flags;
 
-	if (!(info->flags & ASYNC_INITIALIZED))
+	if (!(info->port.flags & ASYNC_INITIALIZED))
 		return;
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
@@ -2786,17 +2780,17 @@
 
 	reset_port(info);
 
- 	if (!info->tty || info->tty->termios->c_cflag & HUPCL) {
+ 	if (!info->port.tty || info->port.tty->termios->c_cflag & HUPCL) {
  		info->serial_signals &= ~(SerialSignal_DTR + SerialSignal_RTS);
 		set_signals(info);
 	}
 
 	spin_unlock_irqrestore(&info->lock,flags);
 
-	if (info->tty)
-		set_bit(TTY_IO_ERROR, &info->tty->flags);
+	if (info->port.tty)
+		set_bit(TTY_IO_ERROR, &info->port.tty->flags);
 
-	info->flags &= ~ASYNC_INITIALIZED;
+	info->port.flags &= ~ASYNC_INITIALIZED;
 }
 
 static void program_hw(SLMP_INFO *info)
@@ -2827,7 +2821,7 @@
 
 	get_signals(info);
 
-	if (info->netcount || (info->tty && info->tty->termios->c_cflag & CREAD) )
+	if (info->netcount || (info->port.tty && info->port.tty->termios->c_cflag & CREAD) )
 		rx_start(info);
 
 	spin_unlock_irqrestore(&info->lock,flags);
@@ -2840,14 +2834,14 @@
 	unsigned cflag;
 	int bits_per_char;
 
-	if (!info->tty || !info->tty->termios)
+	if (!info->port.tty || !info->port.tty->termios)
 		return;
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):%s change_params()\n",
 			 __FILE__,__LINE__, info->device_name );
 
-	cflag = info->tty->termios->c_cflag;
+	cflag = info->port.tty->termios->c_cflag;
 
 	/* if B0 rate (hangup) specified then negate DTR and RTS */
 	/* otherwise assert DTR and RTS */
@@ -2895,7 +2889,7 @@
 	 * current data rate.
 	 */
 	if (info->params.data_rate <= 460800) {
-		info->params.data_rate = tty_get_baud_rate(info->tty);
+		info->params.data_rate = tty_get_baud_rate(info->port.tty);
 	}
 
 	if ( info->params.data_rate ) {
@@ -2905,30 +2899,30 @@
 	info->timeout += HZ/50;		/* Add .02 seconds of slop */
 
 	if (cflag & CRTSCTS)
-		info->flags |= ASYNC_CTS_FLOW;
+		info->port.flags |= ASYNC_CTS_FLOW;
 	else
-		info->flags &= ~ASYNC_CTS_FLOW;
+		info->port.flags &= ~ASYNC_CTS_FLOW;
 
 	if (cflag & CLOCAL)
-		info->flags &= ~ASYNC_CHECK_CD;
+		info->port.flags &= ~ASYNC_CHECK_CD;
 	else
-		info->flags |= ASYNC_CHECK_CD;
+		info->port.flags |= ASYNC_CHECK_CD;
 
 	/* process tty input control flags */
 
 	info->read_status_mask2 = OVRN;
-	if (I_INPCK(info->tty))
+	if (I_INPCK(info->port.tty))
 		info->read_status_mask2 |= PE | FRME;
- 	if (I_BRKINT(info->tty) || I_PARMRK(info->tty))
+ 	if (I_BRKINT(info->port.tty) || I_PARMRK(info->port.tty))
  		info->read_status_mask1 |= BRKD;
-	if (I_IGNPAR(info->tty))
+	if (I_IGNPAR(info->port.tty))
 		info->ignore_status_mask2 |= PE | FRME;
-	if (I_IGNBRK(info->tty)) {
+	if (I_IGNBRK(info->port.tty)) {
 		info->ignore_status_mask1 |= BRKD;
 		/* If ignoring parity and break indicators, ignore
 		 * overruns too.  (For real raw support).
 		 */
-		if (I_IGNPAR(info->tty))
+		if (I_IGNPAR(info->port.tty))
 			info->ignore_status_mask2 |= OVRN;
 	}
 
@@ -3348,7 +3342,7 @@
 	if (filp->f_flags & O_NONBLOCK || tty->flags & (1 << TTY_IO_ERROR)){
 		/* nonblock mode is set or port is not enabled */
 		/* just verify that callout device is not active */
-		info->flags |= ASYNC_NORMAL_ACTIVE;
+		info->port.flags |= ASYNC_NORMAL_ACTIVE;
 		return 0;
 	}
 
@@ -3357,25 +3351,25 @@
 
 	/* Wait for carrier detect and the line to become
 	 * free (i.e., not in use by the callout).  While we are in
-	 * this loop, info->count is dropped by one, so that
+	 * this loop, info->port.count is dropped by one, so that
 	 * close() knows when to free things.  We restore it upon
 	 * exit, either normal or abnormal.
 	 */
 
 	retval = 0;
-	add_wait_queue(&info->open_wait, &wait);
+	add_wait_queue(&info->port.open_wait, &wait);
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):%s block_til_ready() before block, count=%d\n",
-			 __FILE__,__LINE__, tty->driver->name, info->count );
+			 __FILE__,__LINE__, tty->driver->name, info->port.count );
 
 	spin_lock_irqsave(&info->lock, flags);
 	if (!tty_hung_up_p(filp)) {
 		extra_count = true;
-		info->count--;
+		info->port.count--;
 	}
 	spin_unlock_irqrestore(&info->lock, flags);
-	info->blocked_open++;
+	info->port.blocked_open++;
 
 	while (1) {
 		if ((tty->termios->c_cflag & CBAUD)) {
@@ -3387,8 +3381,8 @@
 
 		set_current_state(TASK_INTERRUPTIBLE);
 
-		if (tty_hung_up_p(filp) || !(info->flags & ASYNC_INITIALIZED)){
-			retval = (info->flags & ASYNC_HUP_NOTIFY) ?
+		if (tty_hung_up_p(filp) || !(info->port.flags & ASYNC_INITIALIZED)){
+			retval = (info->port.flags & ASYNC_HUP_NOTIFY) ?
 					-EAGAIN : -ERESTARTSYS;
 			break;
 		}
@@ -3397,7 +3391,7 @@
 	 	get_signals(info);
 		spin_unlock_irqrestore(&info->lock,flags);
 
- 		if (!(info->flags & ASYNC_CLOSING) &&
+ 		if (!(info->port.flags & ASYNC_CLOSING) &&
  		    (do_clocal || (info->serial_signals & SerialSignal_DCD)) ) {
  			break;
 		}
@@ -3409,24 +3403,24 @@
 
 		if (debug_level >= DEBUG_LEVEL_INFO)
 			printk("%s(%d):%s block_til_ready() count=%d\n",
-				 __FILE__,__LINE__, tty->driver->name, info->count );
+				 __FILE__,__LINE__, tty->driver->name, info->port.count );
 
 		schedule();
 	}
 
 	set_current_state(TASK_RUNNING);
-	remove_wait_queue(&info->open_wait, &wait);
+	remove_wait_queue(&info->port.open_wait, &wait);
 
 	if (extra_count)
-		info->count++;
-	info->blocked_open--;
+		info->port.count++;
+	info->port.blocked_open--;
 
 	if (debug_level >= DEBUG_LEVEL_INFO)
 		printk("%s(%d):%s block_til_ready() after, count=%d\n",
-			 __FILE__,__LINE__, tty->driver->name, info->count );
+			 __FILE__,__LINE__, tty->driver->name, info->port.count );
 
 	if (!retval)
-		info->flags |= ASYNC_NORMAL_ACTIVE;
+		info->port.flags |= ASYNC_NORMAL_ACTIVE;
 
 	return retval;
 }
@@ -3813,8 +3807,7 @@
 		info->max_frame_size = 4096;
 		info->close_delay = 5*HZ/10;
 		info->closing_wait = 30*HZ;
-		init_waitqueue_head(&info->open_wait);
-		init_waitqueue_head(&info->close_wait);
+		tty_port_init(&info->port);
 		init_waitqueue_head(&info->status_event_wait_q);
 		init_waitqueue_head(&info->event_wait_q);
 		spin_lock_init(&info->netlock);
@@ -4885,7 +4878,7 @@
 	unsigned int framesize = 0;
 	bool ReturnCode = false;
 	unsigned long flags;
-	struct tty_struct *tty = info->tty;
+	struct tty_struct *tty = info->port.tty;
 	unsigned char addr_field = 0xff;
    	SCADESC *desc;
 	SCADESC_EX *desc_ex;
@@ -5293,11 +5286,11 @@
 	bool rc = false;
 	unsigned long flags;
 
-	struct tty_struct *oldtty = info->tty;
+	struct tty_struct *oldtty = info->port.tty;
 	u32 speed = info->params.clock_speed;
 
 	info->params.clock_speed = 3686400;
-	info->tty = NULL;
+	info->port.tty = NULL;
 
 	/* assume failure */
 	info->init_error = DiagStatus_DmaFailure;
@@ -5341,7 +5334,7 @@
 	spin_unlock_irqrestore(&info->lock,flags);
 
 	info->params.clock_speed = speed;
-	info->tty = oldtty;
+	info->port.tty = oldtty;
 
 	return rc;
 }