Merge tag 'spi-fix-v6.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/broonie/spi
[platform/kernel/linux-starfive.git] / drivers / base / container.c
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
15 static int trivial_online(struct device *dev)
16 {
17         return 0;
18 }
19
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 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
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 }