/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Greybus Bridged-Phy Bus driver
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*
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* Copyright 2016 Google Inc.
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*/
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#ifndef __GBPHY_H
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#define __GBPHY_H
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struct gbphy_device {
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u32 id;
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struct greybus_descriptor_cport *cport_desc;
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struct gb_bundle *bundle;
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struct list_head list;
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struct device dev;
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};
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#define to_gbphy_dev(d) container_of(d, struct gbphy_device, dev)
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static inline void *gb_gbphy_get_data(struct gbphy_device *gdev)
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{
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return dev_get_drvdata(&gdev->dev);
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}
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static inline void gb_gbphy_set_data(struct gbphy_device *gdev, void *data)
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{
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dev_set_drvdata(&gdev->dev, data);
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}
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struct gbphy_device_id {
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__u8 protocol_id;
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};
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#define GBPHY_PROTOCOL(p) \
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.protocol_id = (p),
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struct gbphy_driver {
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const char *name;
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int (*probe)(struct gbphy_device *device,
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const struct gbphy_device_id *id);
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void (*remove)(struct gbphy_device *device);
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const struct gbphy_device_id *id_table;
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struct device_driver driver;
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};
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#define to_gbphy_driver(d) container_of(d, struct gbphy_driver, driver)
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int gb_gbphy_register_driver(struct gbphy_driver *driver,
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struct module *owner, const char *mod_name);
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void gb_gbphy_deregister_driver(struct gbphy_driver *driver);
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#define gb_gbphy_register(driver) \
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gb_gbphy_register_driver(driver, THIS_MODULE, KBUILD_MODNAME)
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#define gb_gbphy_deregister(driver) \
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gb_gbphy_deregister_driver(driver)
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/**
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* module_gbphy_driver() - Helper macro for registering a gbphy driver
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* @__gbphy_driver: gbphy_driver structure
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*
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* Helper macro for gbphy drivers to set up proper module init / exit
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* functions. Replaces module_init() and module_exit() and keeps people from
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* printing pointless things to the kernel log when their driver is loaded.
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*/
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#define module_gbphy_driver(__gbphy_driver) \
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module_driver(__gbphy_driver, gb_gbphy_register, gb_gbphy_deregister)
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#ifdef CONFIG_PM
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static inline int gbphy_runtime_get_sync(struct gbphy_device *gbphy_dev)
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{
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struct device *dev = &gbphy_dev->dev;
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int ret;
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ret = pm_runtime_get_sync(dev);
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if (ret < 0) {
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dev_err(dev, "pm_runtime_get_sync failed: %d\n", ret);
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pm_runtime_put_noidle(dev);
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return ret;
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}
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return 0;
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}
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static inline void gbphy_runtime_put_autosuspend(struct gbphy_device *gbphy_dev)
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{
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struct device *dev = &gbphy_dev->dev;
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pm_runtime_mark_last_busy(dev);
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pm_runtime_put_autosuspend(dev);
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}
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static inline void gbphy_runtime_get_noresume(struct gbphy_device *gbphy_dev)
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{
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pm_runtime_get_noresume(&gbphy_dev->dev);
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}
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static inline void gbphy_runtime_put_noidle(struct gbphy_device *gbphy_dev)
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{
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pm_runtime_put_noidle(&gbphy_dev->dev);
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}
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#else
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static inline int gbphy_runtime_get_sync(struct gbphy_device *gbphy_dev) { return 0; }
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static inline void gbphy_runtime_put_autosuspend(struct gbphy_device *gbphy_dev) {}
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static inline void gbphy_runtime_get_noresume(struct gbphy_device *gbphy_dev) {}
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static inline void gbphy_runtime_put_noidle(struct gbphy_device *gbphy_dev) {}
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#endif
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#endif /* __GBPHY_H */
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