| 1 | /* SPDX-License-Identifier: GPL-2.0 */ |
|---|---|
| 2 | /* |
| 3 | * Greybus bundles |
| 4 | * |
| 5 | * Copyright 2014 Google Inc. |
| 6 | * Copyright 2014 Linaro Ltd. |
| 7 | */ |
| 8 | |
| 9 | #ifndef __BUNDLE_H |
| 10 | #define __BUNDLE_H |
| 11 | |
| 12 | #include <linux/types.h> |
| 13 | #include <linux/list.h> |
| 14 | #include <linux/pm_runtime.h> |
| 15 | #include <linux/device.h> |
| 16 | |
| 17 | #define BUNDLE_ID_NONE U8_MAX |
| 18 | |
| 19 | /* Greybus "public" definitions" */ |
| 20 | struct gb_bundle { |
| 21 | struct device dev; |
| 22 | struct gb_interface *intf; |
| 23 | |
| 24 | u8 id; |
| 25 | u8 class; |
| 26 | u8 class_major; |
| 27 | u8 class_minor; |
| 28 | |
| 29 | size_t num_cports; |
| 30 | struct greybus_descriptor_cport *cport_desc; |
| 31 | |
| 32 | struct list_head connections; |
| 33 | u8 *state; |
| 34 | |
| 35 | struct list_head links; /* interface->bundles */ |
| 36 | }; |
| 37 | #define to_gb_bundle(d) container_of(d, struct gb_bundle, dev) |
| 38 | |
| 39 | /* Greybus "private" definitions" */ |
| 40 | struct gb_bundle *gb_bundle_create(struct gb_interface *intf, u8 bundle_id, |
| 41 | u8 class); |
| 42 | int gb_bundle_add(struct gb_bundle *bundle); |
| 43 | void gb_bundle_destroy(struct gb_bundle *bundle); |
| 44 | |
| 45 | /* Bundle Runtime PM wrappers */ |
| 46 | #ifdef CONFIG_PM |
| 47 | static inline int gb_pm_runtime_get_sync(struct gb_bundle *bundle) |
| 48 | { |
| 49 | int retval; |
| 50 | |
| 51 | retval = pm_runtime_get_sync(dev: &bundle->dev); |
| 52 | if (retval < 0) { |
| 53 | dev_err(&bundle->dev, |
| 54 | "pm_runtime_get_sync failed: %d\n", retval); |
| 55 | pm_runtime_put_noidle(dev: &bundle->dev); |
| 56 | return retval; |
| 57 | } |
| 58 | |
| 59 | return 0; |
| 60 | } |
| 61 | |
| 62 | static inline int gb_pm_runtime_put_autosuspend(struct gb_bundle *bundle) |
| 63 | { |
| 64 | int retval; |
| 65 | |
| 66 | pm_runtime_mark_last_busy(dev: &bundle->dev); |
| 67 | retval = pm_runtime_put_autosuspend(dev: &bundle->dev); |
| 68 | |
| 69 | return retval; |
| 70 | } |
| 71 | |
| 72 | static inline void gb_pm_runtime_get_noresume(struct gb_bundle *bundle) |
| 73 | { |
| 74 | pm_runtime_get_noresume(dev: &bundle->dev); |
| 75 | } |
| 76 | |
| 77 | static inline void gb_pm_runtime_put_noidle(struct gb_bundle *bundle) |
| 78 | { |
| 79 | pm_runtime_put_noidle(dev: &bundle->dev); |
| 80 | } |
| 81 | |
| 82 | #else |
| 83 | static inline int gb_pm_runtime_get_sync(struct gb_bundle *bundle) |
| 84 | { return 0; } |
| 85 | static inline int gb_pm_runtime_put_autosuspend(struct gb_bundle *bundle) |
| 86 | { return 0; } |
| 87 | |
| 88 | static inline void gb_pm_runtime_get_noresume(struct gb_bundle *bundle) {} |
| 89 | static inline void gb_pm_runtime_put_noidle(struct gb_bundle *bundle) {} |
| 90 | #endif |
| 91 | |
| 92 | #endif /* __BUNDLE_H */ |
| 93 |