greybus: hd: add flag argument to cport_enable callback

Add a flag argument to the host-device cport_enable callback that can be
used to provide hints about the connection being created (e.g.
connection priority).

Reviewed-by: Alex Elder <elder@linaro.org>
Signed-off-by: Johan Hovold <johan@hovoldconsulting.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

drivers/staging/greybus/connection.c

@@ -286,7 +286,8 @@ static int gb_connection_hd_cport_enable(struct gb_connection *connection)
 	if (!hd->driver->cport_enable)
 		return 0;
 
-	ret = hd->driver->cport_enable(hd, connection->hd_cport_id);
+	ret = hd->driver->cport_enable(hd, connection->hd_cport_id,
+					connection->flags);
 	if (ret) {
 		dev_err(&hd->dev, "%s: failed to enable host cport: %d\n",
 				connection->name, ret);

drivers/staging/greybus/hd.h

@@ -19,7 +19,8 @@ struct gb_hd_driver {
 	int (*cport_allocate)(struct gb_host_device *hd, int cport_id,
 				unsigned long flags);
 	void (*cport_release)(struct gb_host_device *hd, u16 cport_id);
-	int (*cport_enable)(struct gb_host_device *hd, u16 cport_id);
+	int (*cport_enable)(struct gb_host_device *hd, u16 cport_id,
+				unsigned long flags);
 	int (*cport_disable)(struct gb_host_device *hd, u16 cport_id);
 	int (*cport_flush)(struct gb_host_device *hd, u16 cport_id);
 	int (*cport_ping)(struct gb_host_device *hd, u16 cport_id);