[PATCH 17/19] serdev: Mark controllers compatible with ttyport

From: Ricardo Ribalda Delgado
Date: Tue May 29 2018 - 09:12:19 EST


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

Cc: Rob Herring <robh@xxxxxxxxxx>
Cc: Johan Hovold <johan@xxxxxxxxxx>
Cc: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx>
Cc: Jiri Slaby <jslaby@xxxxxxxx>
Signed-off-by: Ricardo Ribalda Delgado <ricardo.ribalda@xxxxxxxxx>
---
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)
--
2.17.0