riscom8: use tty_port

Switch riscom8 to use the new tty_port structure
Signed-off-by: Alan Cox <alan@redhat.com>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

drivers/char/riscom8.h

@@ -66,20 +66,14 @@ struct riscom_board {
 	
 struct riscom_port {
 	int			magic;
+	struct			tty_port port;
 	int			baud_base;
-	int			flags;
-	struct tty_struct 	* tty;
-	int			count;
-	int			blocked_open;
 	int			timeout;
 	int			close_delay;
-	unsigned char 		* xmit_buf;
 	int			custom_divisor;
 	int			xmit_head;
 	int			xmit_tail;
 	int			xmit_cnt;
-	wait_queue_head_t	open_wait;
-	wait_queue_head_t	close_wait;
 	short			wakeup_chars;
 	short			break_length;
 	unsigned short		closing_wait;