[PATCH v2 17/24] serdev: Mark controllers compatible with ttyport

[Ricardo Ribalda Delgado]

This allows us to treat differently this controllers, by creating a tty
compatibility layer.

Cc: Rob Herring <r...@kernel.org>
Cc: Johan Hovold <jo...@kernel.org>
Cc: Greg Kroah-Hartman <gre...@linuxfoundation.org>
Cc: Jiri Slaby <jsl...@suse.com>
Signed-off-by: Ricardo Ribalda Delgado <ricardo.riba...@gmail.com>
---
 drivers/tty/serdev/serdev-ttyport.c | 1 +
 include/linux/serdev.h              | 1 +
 2 files changed, 2 insertions(+)

diff --git a/drivers/tty/serdev/serdev-ttyport.c 
b/drivers/tty/serdev/serdev-ttyport.c
index 4acc5f41dc67..ae961260e4a4 100644
--- a/drivers/tty/serdev/serdev-ttyport.c
+++ b/drivers/tty/serdev/serdev-ttyport.c
@@ -276,6 +276,7 @@ struct device *serdev_tty_port_register(struct tty_port 
*port,
        serport->tty_drv = drv;
 
        ctrl->ops = &ctrl_ops;
+       ctrl->is_ttyport = true;
 
        old_ops = port->client_ops;
        port->client_ops = &client_ops;
diff --git a/include/linux/serdev.h b/include/linux/serdev.h
index bb3b9599c652..07d63933bdb9 100644
--- a/include/linux/serdev.h
+++ b/include/linux/serdev.h
@@ -116,6 +116,7 @@ struct serdev_controller {
        unsigned int            nr;
        struct serdev_device    *serdev;
        const struct serdev_controller_ops *ops;
+       bool                    is_ttyport;
 };
 
 static inline struct serdev_controller *to_serdev_controller(struct device *d)
-- 
2.17.1