Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
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linux
1/*
2 * Greybus bundles
3 *
4 * Copyright 2014 Google Inc.
5 * Copyright 2014 Linaro Ltd.
6 *
7 * Released under the GPLv2 only.
8 */
9
10#ifndef __BUNDLE_H
11#define __BUNDLE_H
12
13#include <linux/list.h>
14
15#define BUNDLE_ID_NONE U8_MAX
16
17/* Greybus "public" definitions" */
18struct gb_bundle {
19 struct device dev;
20 struct gb_interface *intf;
21
22 u8 id;
23 u8 class;
24 u8 class_major;
25 u8 class_minor;
26
27 size_t num_cports;
28 struct greybus_descriptor_cport *cport_desc;
29
30 struct list_head connections;
31 u8 *state;
32
33 struct list_head links; /* interface->bundles */
34};
35#define to_gb_bundle(d) container_of(d, struct gb_bundle, dev)
36
37/* Greybus "private" definitions" */
38struct gb_bundle *gb_bundle_create(struct gb_interface *intf, u8 bundle_id,
39 u8 class);
40int gb_bundle_add(struct gb_bundle *bundle);
41void gb_bundle_destroy(struct gb_bundle *bundle);
42
43/* Bundle Runtime PM wrappers */
44#ifdef CONFIG_PM
45static inline int gb_pm_runtime_get_sync(struct gb_bundle *bundle)
46{
47 int retval;
48
49 retval = pm_runtime_get_sync(&bundle->dev);
50 if (retval < 0) {
51 dev_err(&bundle->dev,
52 "pm_runtime_get_sync failed: %d\n", retval);
53 pm_runtime_put_noidle(&bundle->dev);
54 return retval;
55 }
56
57 return 0;
58}
59
60static inline int gb_pm_runtime_put_autosuspend(struct gb_bundle *bundle)
61{
62 int retval;
63
64 pm_runtime_mark_last_busy(&bundle->dev);
65 retval = pm_runtime_put_autosuspend(&bundle->dev);
66
67 return retval;
68}
69
70static inline void gb_pm_runtime_get_noresume(struct gb_bundle *bundle)
71{
72 pm_runtime_get_noresume(&bundle->dev);
73}
74
75static inline void gb_pm_runtime_put_noidle(struct gb_bundle *bundle)
76{
77 pm_runtime_put_noidle(&bundle->dev);
78}
79
80#else
81static inline int gb_pm_runtime_get_sync(struct gb_bundle *bundle)
82{ return 0; }
83static inline int gb_pm_runtime_put_autosuspend(struct gb_bundle *bundle)
84{ return 0; }
85
86static inline void gb_pm_runtime_get_noresume(struct gb_bundle *bundle) {}
87static inline void gb_pm_runtime_put_noidle(struct gb_bundle *bundle) {}
88#endif
89
90#endif /* __BUNDLE_H */