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1/* SPDX-License-Identifier: GPL-2.0 */2/*3 * Greybus Bridged-Phy Bus driver4 *5 * Copyright 2016 Google Inc.6 */7 8#ifndef __GBPHY_H9#define __GBPHY_H10 11struct gbphy_device {12 u32 id;13 struct greybus_descriptor_cport *cport_desc;14 struct gb_bundle *bundle;15 struct list_head list;16 struct device dev;17};18#define to_gbphy_dev(d) container_of(d, struct gbphy_device, dev)19 20static inline void *gb_gbphy_get_data(struct gbphy_device *gdev)21{22 return dev_get_drvdata(&gdev->dev);23}24 25static inline void gb_gbphy_set_data(struct gbphy_device *gdev, void *data)26{27 dev_set_drvdata(&gdev->dev, data);28}29 30struct gbphy_device_id {31 __u8 protocol_id;32};33 34#define GBPHY_PROTOCOL(p) \35 .protocol_id = (p),36 37struct gbphy_driver {38 const char *name;39 int (*probe)(struct gbphy_device *device,40 const struct gbphy_device_id *id);41 void (*remove)(struct gbphy_device *device);42 const struct gbphy_device_id *id_table;43 44 struct device_driver driver;45};46#define to_gbphy_driver(d) container_of(d, struct gbphy_driver, driver)47 48int gb_gbphy_register_driver(struct gbphy_driver *driver,49 struct module *owner, const char *mod_name);50void gb_gbphy_deregister_driver(struct gbphy_driver *driver);51 52#define gb_gbphy_register(driver) \53 gb_gbphy_register_driver(driver, THIS_MODULE, KBUILD_MODNAME)54#define gb_gbphy_deregister(driver) \55 gb_gbphy_deregister_driver(driver)56 57/**58 * module_gbphy_driver() - Helper macro for registering a gbphy driver59 * @__gbphy_driver: gbphy_driver structure60 *61 * Helper macro for gbphy drivers to set up proper module init / exit62 * functions. Replaces module_init() and module_exit() and keeps people from63 * printing pointless things to the kernel log when their driver is loaded.64 */65#define module_gbphy_driver(__gbphy_driver) \66 module_driver(__gbphy_driver, gb_gbphy_register, gb_gbphy_deregister)67 68#ifdef CONFIG_PM69static inline int gbphy_runtime_get_sync(struct gbphy_device *gbphy_dev)70{71 struct device *dev = &gbphy_dev->dev;72 int ret;73 74 ret = pm_runtime_get_sync(dev);75 if (ret < 0) {76 dev_err(dev, "pm_runtime_get_sync failed: %d\n", ret);77 pm_runtime_put_noidle(dev);78 return ret;79 }80 81 return 0;82}83 84static inline void gbphy_runtime_put_autosuspend(struct gbphy_device *gbphy_dev)85{86 struct device *dev = &gbphy_dev->dev;87 88 pm_runtime_mark_last_busy(dev);89 pm_runtime_put_autosuspend(dev);90}91 92static inline void gbphy_runtime_get_noresume(struct gbphy_device *gbphy_dev)93{94 pm_runtime_get_noresume(&gbphy_dev->dev);95}96 97static inline void gbphy_runtime_put_noidle(struct gbphy_device *gbphy_dev)98{99 pm_runtime_put_noidle(&gbphy_dev->dev);100}101#else102static inline int gbphy_runtime_get_sync(struct gbphy_device *gbphy_dev) { return 0; }103static inline void gbphy_runtime_put_autosuspend(struct gbphy_device *gbphy_dev) {}104static inline void gbphy_runtime_get_noresume(struct gbphy_device *gbphy_dev) {}105static inline void gbphy_runtime_put_noidle(struct gbphy_device *gbphy_dev) {}106#endif107 108#endif /* __GBPHY_H */109 110