driver.h 1.7 KB

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  1. /* SPDX-License-Identifier: GPL-2.0 */
  2. #ifndef __LINUX_ULPI_DRIVER_H
  3. #define __LINUX_ULPI_DRIVER_H
  4. #include <linux/mod_devicetable.h>
  5. #include <linux/device.h>
  6. struct ulpi_ops;
  7. /**
  8. * struct ulpi - describes ULPI PHY device
  9. * @id: vendor and product ids for ULPI device
  10. * @ops: I/O access
  11. * @dev: device interface
  12. */
  13. struct ulpi {
  14. struct ulpi_device_id id;
  15. const struct ulpi_ops *ops;
  16. struct device dev;
  17. };
  18. #define to_ulpi_dev(d) container_of(d, struct ulpi, dev)
  19. static inline void ulpi_set_drvdata(struct ulpi *ulpi, void *data)
  20. {
  21. dev_set_drvdata(&ulpi->dev, data);
  22. }
  23. static inline void *ulpi_get_drvdata(struct ulpi *ulpi)
  24. {
  25. return dev_get_drvdata(&ulpi->dev);
  26. }
  27. /**
  28. * struct ulpi_driver - describes a ULPI PHY driver
  29. * @id_table: array of device identifiers supported by this driver
  30. * @probe: binds this driver to ULPI device
  31. * @remove: unbinds this driver from ULPI device
  32. * @driver: the name and owner members must be initialized by the drivers
  33. */
  34. struct ulpi_driver {
  35. const struct ulpi_device_id *id_table;
  36. int (*probe)(struct ulpi *ulpi);
  37. void (*remove)(struct ulpi *ulpi);
  38. struct device_driver driver;
  39. };
  40. #define to_ulpi_driver(d) container_of(d, struct ulpi_driver, driver)
  41. /*
  42. * use a macro to avoid include chaining to get THIS_MODULE
  43. */
  44. #define ulpi_register_driver(drv) __ulpi_register_driver(drv, THIS_MODULE)
  45. int __ulpi_register_driver(struct ulpi_driver *drv, struct module *module);
  46. void ulpi_unregister_driver(struct ulpi_driver *drv);
  47. #define module_ulpi_driver(__ulpi_driver) \
  48. module_driver(__ulpi_driver, ulpi_register_driver, \
  49. ulpi_unregister_driver)
  50. int ulpi_read(struct ulpi *ulpi, u8 addr);
  51. int ulpi_write(struct ulpi *ulpi, u8 addr, u8 val);
  52. #endif /* __LINUX_ULPI_DRIVER_H */