wm8804-i2c.c 1.7 KB

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  1. // SPDX-License-Identifier: GPL-2.0-only
  2. /*
  3. * wm8804-i2c.c -- WM8804 S/PDIF transceiver driver - I2C
  4. *
  5. * Copyright 2015 Cirrus Logic Inc
  6. *
  7. * Author: Charles Keepax <ckeepax@opensource.wolfsonmicro.com>
  8. */
  9. #include <linux/init.h>
  10. #include <linux/module.h>
  11. #include <linux/i2c.h>
  12. #include <linux/acpi.h>
  13. #include "wm8804.h"
  14. static int wm8804_i2c_probe(struct i2c_client *i2c,
  15. const struct i2c_device_id *id)
  16. {
  17. struct regmap *regmap;
  18. regmap = devm_regmap_init_i2c(i2c, &wm8804_regmap_config);
  19. if (IS_ERR(regmap))
  20. return PTR_ERR(regmap);
  21. return wm8804_probe(&i2c->dev, regmap);
  22. }
  23. static int wm8804_i2c_remove(struct i2c_client *i2c)
  24. {
  25. wm8804_remove(&i2c->dev);
  26. return 0;
  27. }
  28. static const struct i2c_device_id wm8804_i2c_id[] = {
  29. { "wm8804", 0 },
  30. { }
  31. };
  32. MODULE_DEVICE_TABLE(i2c, wm8804_i2c_id);
  33. #if defined(CONFIG_OF)
  34. static const struct of_device_id wm8804_of_match[] = {
  35. { .compatible = "wlf,wm8804", },
  36. { }
  37. };
  38. MODULE_DEVICE_TABLE(of, wm8804_of_match);
  39. #endif
  40. #ifdef CONFIG_ACPI
  41. static const struct acpi_device_id wm8804_acpi_match[] = {
  42. { "1AEC8804", 0 }, /* Wolfson PCI ID + part ID */
  43. { "10138804", 0 }, /* Cirrus Logic PCI ID + part ID */
  44. { },
  45. };
  46. MODULE_DEVICE_TABLE(acpi, wm8804_acpi_match);
  47. #endif
  48. static struct i2c_driver wm8804_i2c_driver = {
  49. .driver = {
  50. .name = "wm8804",
  51. .pm = &wm8804_pm,
  52. .of_match_table = of_match_ptr(wm8804_of_match),
  53. .acpi_match_table = ACPI_PTR(wm8804_acpi_match),
  54. },
  55. .probe = wm8804_i2c_probe,
  56. .remove = wm8804_i2c_remove,
  57. .id_table = wm8804_i2c_id
  58. };
  59. module_i2c_driver(wm8804_i2c_driver);
  60. MODULE_DESCRIPTION("ASoC WM8804 driver - I2C");
  61. MODULE_AUTHOR("Charles Keepax <ckeepax@opensource.wolfsonmicro.com>");
  62. MODULE_LICENSE("GPL");