greybus: connection: Save major/minor supported by module

Save major/minor number supported by the module inside connection
structure, as this can be used later.
Signed-off-by: Viresh Kumar <viresh.kumar@linaro.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@google.com>

drivers/staging/greybus/connection.h

@@ -34,6 +34,8 @@ struct gb_connection {
 	u8				protocol_id;
 	u8				major;
 	u8				minor;
+	u8				module_major;
+	u8				module_minor;
 
 	spinlock_t			lock;
 	enum gb_connection_state	state;

drivers/staging/greybus/protocol.c

@@ -182,6 +182,9 @@ int gb_protocol_get_version(struct gb_connection *connection, int type,
 		return -ENOTSUPP;
 	}
 
+	connection->module_major = response->major;
+	connection->module_minor = response->minor;
+
 	dev_dbg(&connection->dev, "version_major = %u version_minor = %u\n",
 		response->major, response->minor);