LXR linux/include/linux/soundwire/sdw

   1/* SPDX-License-Identifier: GPL-2.0 */
   2/* Copyright(c) 2015-17 Intel Corporation. */
   3
   4#ifndef __SOUNDWIRE_TYPES_H
   5#define __SOUNDWIRE_TYPES_H
   6
   7extern struct bus_type sdw_bus_type;
   8
   9#define drv_to_sdw_driver(_drv) container_of(_drv, struct sdw_driver, driver)
  10
  11#define sdw_register_driver(drv) \
  12        __sdw_register_driver(drv, THIS_MODULE)
  13
  14int __sdw_register_driver(struct sdw_driver *drv, struct module *owner);
  15void sdw_unregister_driver(struct sdw_driver *drv);
  16
  17int sdw_slave_modalias(const struct sdw_slave *slave, char *buf, size_t size);
  18
  19/**
  20 * module_sdw_driver() - Helper macro for registering a Soundwire driver
  21 * @__sdw_driver: soundwire slave driver struct
  22 *
  23 * Helper macro for Soundwire drivers which do not do anything special in
  24 * module init/exit. This eliminates a lot of boilerplate. Each module may only
  25 * use this macro once, and calling it replaces module_init() and module_exit()
  26 */
  27#define module_sdw_driver(__sdw_driver) \
  28        module_driver(__sdw_driver, sdw_register_driver, \
  29                        sdw_unregister_driver)
  30#endif /* __SOUNDWIRE_TYPES_H */
  31