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authorRob Herring <robh@kernel.org>2017-02-02 22:48:08 +0300
committerGreg Kroah-Hartman <gregkh@linuxfoundation.org>2017-02-03 12:17:02 +0300
commitbed35c6dfa6a36233c3e1238a40dc1ae67955898 (patch)
tree03afb77346bfc39d88fd57600a3722a3fd09179a /include/linux/serdev.h
parentcd6484e1830be260abfba80a9c7d8f65531126d6 (diff)
downloadlinux-bed35c6dfa6a36233c3e1238a40dc1ae67955898.tar.xz
serdev: add a tty port controller driver
Add a serdev controller driver for tty ports. The controller is registered with serdev when tty ports are registered with the TTY core. As the TTY core is built-in only, this has the side effect of making serdev built-in as well. Signed-off-by: Rob Herring <robh@kernel.org> Reviewed-By: Sebastian Reichel <sre@kernel.org> Tested-By: Sebastian Reichel <sre@kernel.org> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'include/linux/serdev.h')
-rw-r--r--include/linux/serdev.h21
1 files changed, 21 insertions, 0 deletions
diff --git a/include/linux/serdev.h b/include/linux/serdev.h
index 3ac26c1a8aab..9519da6253a8 100644
--- a/include/linux/serdev.h
+++ b/include/linux/serdev.h
@@ -238,4 +238,25 @@ static inline int serdev_device_write_room(struct serdev_device *sdev)
#endif /* CONFIG_SERIAL_DEV_BUS */
+/*
+ * serdev hooks into TTY core
+ */
+struct tty_port;
+struct tty_driver;
+
+#ifdef CONFIG_SERIAL_DEV_CTRL_TTYPORT
+struct device *serdev_tty_port_register(struct tty_port *port,
+ struct device *parent,
+ struct tty_driver *drv, int idx);
+void serdev_tty_port_unregister(struct tty_port *port);
+#else
+static inline struct device *serdev_tty_port_register(struct tty_port *port,
+ struct device *parent,
+ struct tty_driver *drv, int idx)
+{
+ return ERR_PTR(-ENODEV);
+}
+static inline void serdev_tty_port_unregister(struct tty_port *port) {}
+#endif /* CONFIG_SERIAL_DEV_CTRL_TTYPORT */
+
#endif /*_LINUX_SERDEV_H */