bmc150_magn_i2c.c 2.0 KB

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  1. // SPDX-License-Identifier: GPL-2.0-only
  2. /*
  3. * 3-axis magnetometer driver supporting following I2C Bosch-Sensortec chips:
  4. * - BMC150
  5. * - BMC156
  6. * - BMM150
  7. *
  8. * Copyright (c) 2016, Intel Corporation.
  9. */
  10. #include <linux/device.h>
  11. #include <linux/mod_devicetable.h>
  12. #include <linux/i2c.h>
  13. #include <linux/module.h>
  14. #include <linux/acpi.h>
  15. #include <linux/regmap.h>
  16. #include "bmc150_magn.h"
  17. static int bmc150_magn_i2c_probe(struct i2c_client *client,
  18. const struct i2c_device_id *id)
  19. {
  20. struct regmap *regmap;
  21. const char *name = NULL;
  22. regmap = devm_regmap_init_i2c(client, &bmc150_magn_regmap_config);
  23. if (IS_ERR(regmap)) {
  24. dev_err(&client->dev, "Failed to initialize i2c regmap\n");
  25. return PTR_ERR(regmap);
  26. }
  27. if (id)
  28. name = id->name;
  29. return bmc150_magn_probe(&client->dev, regmap, client->irq, name);
  30. }
  31. static int bmc150_magn_i2c_remove(struct i2c_client *client)
  32. {
  33. return bmc150_magn_remove(&client->dev);
  34. }
  35. static const struct acpi_device_id bmc150_magn_acpi_match[] = {
  36. {"BMC150B", 0},
  37. {"BMC156B", 0},
  38. {"BMM150B", 0},
  39. {},
  40. };
  41. MODULE_DEVICE_TABLE(acpi, bmc150_magn_acpi_match);
  42. static const struct i2c_device_id bmc150_magn_i2c_id[] = {
  43. {"bmc150_magn", 0},
  44. {"bmc156_magn", 0},
  45. {"bmm150_magn", 0},
  46. {}
  47. };
  48. MODULE_DEVICE_TABLE(i2c, bmc150_magn_i2c_id);
  49. static const struct of_device_id bmc150_magn_of_match[] = {
  50. { .compatible = "bosch,bmc150_magn" },
  51. { .compatible = "bosch,bmc156_magn" },
  52. { .compatible = "bosch,bmm150_magn" }, /* deprecated compatible */
  53. { .compatible = "bosch,bmm150" },
  54. { }
  55. };
  56. MODULE_DEVICE_TABLE(of, bmc150_magn_of_match);
  57. static struct i2c_driver bmc150_magn_driver = {
  58. .driver = {
  59. .name = "bmc150_magn_i2c",
  60. .of_match_table = bmc150_magn_of_match,
  61. .acpi_match_table = ACPI_PTR(bmc150_magn_acpi_match),
  62. .pm = &bmc150_magn_pm_ops,
  63. },
  64. .probe = bmc150_magn_i2c_probe,
  65. .remove = bmc150_magn_i2c_remove,
  66. .id_table = bmc150_magn_i2c_id,
  67. };
  68. module_i2c_driver(bmc150_magn_driver);
  69. MODULE_AUTHOR("Daniel Baluta <daniel.baluta@intel.com");
  70. MODULE_LICENSE("GPL v2");
  71. MODULE_DESCRIPTION("BMC150 I2C magnetometer driver");