max20751.c 1.7 KB

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  1. /*
  2. * Hardware monitoring driver for Maxim MAX20751
  3. *
  4. * Copyright (c) 2015 Guenter Roeck
  5. *
  6. * This program is free software; you can redistribute it and/or modify
  7. * it under the terms of the GNU General Public License as published by
  8. * the Free Software Foundation; either version 2 of the License, or
  9. * (at your option) any later version.
  10. *
  11. * This program is distributed in the hope that it will be useful,
  12. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  14. * GNU General Public License for more details.
  15. */
  16. #include <linux/kernel.h>
  17. #include <linux/module.h>
  18. #include <linux/init.h>
  19. #include <linux/err.h>
  20. #include <linux/i2c.h>
  21. #include "pmbus.h"
  22. static struct pmbus_driver_info max20751_info = {
  23. .pages = 1,
  24. .format[PSC_VOLTAGE_IN] = linear,
  25. .format[PSC_VOLTAGE_OUT] = vid,
  26. .vrm_version = vr12,
  27. .format[PSC_TEMPERATURE] = linear,
  28. .format[PSC_CURRENT_OUT] = linear,
  29. .format[PSC_POWER] = linear,
  30. .func[0] = PMBUS_HAVE_VIN | PMBUS_HAVE_VOUT | PMBUS_HAVE_STATUS_VOUT |
  31. PMBUS_HAVE_IOUT | PMBUS_HAVE_STATUS_IOUT |
  32. PMBUS_HAVE_TEMP | PMBUS_HAVE_STATUS_TEMP |
  33. PMBUS_HAVE_POUT,
  34. };
  35. static int max20751_probe(struct i2c_client *client,
  36. const struct i2c_device_id *id)
  37. {
  38. return pmbus_do_probe(client, id, &max20751_info);
  39. }
  40. static const struct i2c_device_id max20751_id[] = {
  41. {"max20751", 0},
  42. {}
  43. };
  44. MODULE_DEVICE_TABLE(i2c, max20751_id);
  45. static struct i2c_driver max20751_driver = {
  46. .driver = {
  47. .name = "max20751",
  48. },
  49. .probe = max20751_probe,
  50. .remove = pmbus_do_remove,
  51. .id_table = max20751_id,
  52. };
  53. module_i2c_driver(max20751_driver);
  54. MODULE_AUTHOR("Guenter Roeck <linux@roeck-us.net>");
  55. MODULE_DESCRIPTION("PMBus driver for Maxim MAX20751");
  56. MODULE_LICENSE("GPL");