1 files changed, 3 insertions, 0 deletions

diff --git a/include/linux/tty.h b/include/linux/tty.h
index 45ef71df0e72..40b18d7ad929 100644
--- a/include/linux/tty.h
+++ b/include/linux/tty.h
@@ -497,6 +497,9 @@ extern int tty_write_lock(struct tty_struct *tty, int ndelay);
 #define tty_is_writelocked(tty)  (mutex_is_locked(&tty->atomic_write_lock))
 
 extern void tty_port_init(struct tty_port *port);
+extern struct device *tty_port_register_device(struct tty_port *port,
+                struct tty_driver *driver, unsigned index,
+                struct device *device);
 extern int tty_port_alloc_xmit_buf(struct tty_port *port);
 extern void tty_port_free_xmit_buf(struct tty_port *port);
 extern void tty_port_put(struct tty_port *port);