TTY: isdn, add tty_port

And use tty_port->flags now. Other members will follow.

Signed-off-by: Jiri Slaby <jslaby@suse.cz>
Cc: Karsten Keil <isdn@linux-pingi.de>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
diff --git a/include/linux/isdn.h b/include/linux/isdn.h
index 63af320..bb71041 100644
--- a/include/linux/isdn.h
+++ b/include/linux/isdn.h
@@ -15,6 +15,7 @@
 #define __ISDN_H__
 
 #include <linux/ioctl.h>
+#include <linux/tty.h>
 
 #define ISDN_MAX_DRIVERS    32
 #define ISDN_MAX_CHANNELS   64
@@ -435,7 +436,7 @@
 /* Private data (similar to async_struct in <linux/serial.h>) */
 typedef struct modem_info {
   int			magic;
-  int			flags;		 /* defined in tty.h               */
+  struct tty_port	port;
   int			x_char;		 /* xon/xoff character             */
   int			mcr;		 /* Modem control register         */
   int                   msr;             /* Modem status register          */