diff --git a/Documentation/driver-api/tty/tty_port.rst b/Documentation/driver-api/tty/tty_port.rst
index 5cb90e954fcf..504a353f2682 100644
--- a/Documentation/driver-api/tty/tty_port.rst
+++ b/Documentation/driver-api/tty/tty_port.rst
@@ -42,9 +42,10 @@ TTY Refcounting
 TTY Helpers
 -----------
 
+.. kernel-doc::  include/linux/tty_port.h
+   :identifiers: tty_port_tty_hangup tty_port_tty_vhangup
 .. kernel-doc::  drivers/tty/tty_port.c
-   :identifiers: tty_port_tty_hangup tty_port_tty_wakeup
-
+   :identifiers: tty_port_tty_wakeup
 
 Modem Signals
 -------------
diff --git a/drivers/tty/tty_port.c b/drivers/tty/tty_port.c
index e6cbccbf54f2..e10ccce1653e 100644
--- a/drivers/tty/tty_port.c
+++ b/drivers/tty/tty_port.c
@@ -411,11 +411,6 @@ void tty_port_hangup(struct tty_port *port)
 }
 EXPORT_SYMBOL(tty_port_hangup);
 
-/**
- * tty_port_tty_hangup - helper to hang up a tty
- * @port: tty port
- * @check_clocal: hang only ttys with %CLOCAL unset?
- */
 void __tty_port_tty_hangup(struct tty_port *port, bool check_clocal, bool async)
 {
 	struct tty_struct *tty = tty_port_tty_get(port);
diff --git a/include/linux/tty_port.h b/include/linux/tty_port.h
index 67ed956767bd..41b1c72745ca 100644
--- a/include/linux/tty_port.h
+++ b/include/linux/tty_port.h
@@ -254,11 +254,20 @@ static inline int tty_port_users(struct tty_port *port)
 	return port->count + port->blocked_open;
 }
 
+/**
+ * tty_port_tty_hangup - helper to hang up a tty asynchronously
+ * @port: tty port
+ * @check_clocal: hang only ttys with %CLOCAL unset?
+ */
 static inline void tty_port_tty_hangup(struct tty_port *port, bool check_clocal)
 {
 	__tty_port_tty_hangup(port, check_clocal, true);
 }
 
+/**
+ * tty_port_tty_vhangup - helper to hang up a tty synchronously
+ * @port: tty port
+ */
 static inline void tty_port_tty_vhangup(struct tty_port *port)
 {
 	__tty_port_tty_hangup(port, false, false);