xref: /linux/drivers/base/container.c (revision 06d07429858317ded2db7986113a9e0129cd599b) 
1 // SPDX-License-Identifier: GPL-2.0
2 /*
3  * System bus type for containers.
4  *
5  * Copyright (C) 2013, Intel Corporation
6  * Author: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
7  */
8 
9 #include <linux/container.h>
10 
11 #include "base.h"
12 
13 #define CONTAINER_BUS_NAME	"container"
14 
trivial_online(struct device * dev)15 static int trivial_online(struct device *dev)
16 {
17 	return 0;
18 }
19 
container_offline(struct device * dev)20 static int container_offline(struct device *dev)
21 {
22 	struct container_dev *cdev = to_container_dev(dev);
23 
24 	return cdev->offline ? cdev->offline(cdev) : 0;
25 }
26 
27 const struct bus_type container_subsys = {
28 	.name = CONTAINER_BUS_NAME,
29 	.dev_name = CONTAINER_BUS_NAME,
30 	.online = trivial_online,
31 	.offline = container_offline,
32 };
33 
container_dev_init(void)34 void __init container_dev_init(void)
35 {
36 	int ret;
37 
38 	ret = subsys_system_register(&container_subsys, NULL);
39 	if (ret)
40 		pr_err("%s() failed: %d\n", __func__, ret);
41 }
42