drivers/iio/imu/bmi270/bmi270_i2c.c

   1 // SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
   2
   3 #include <linux/i2c.h>
   4 #include <linux/iio/iio.h>
   5 #include <linux/module.h>
   6 #include <linux/mod_devicetable.h>
   7 #include <linux/regmap.h>
   8
   9 #include "bmi270.h"
  10
  11 static const struct regmap_config bmi270_i2c_regmap_config = {
  12         .reg_bits = 8,
  13         .val_bits = 8,
  14 };
  15
  16 static int bmi270_i2c_probe(struct i2c_client *client)
  17 {
  18         struct regmap *regmap;
  19         struct device *dev = &client->dev;
  20         const struct bmi270_chip_info *chip_info;
  21
  22         chip_info = i2c_get_match_data(client);
  23         if (!chip_info)
  24                 return -ENODEV;
  25
  26         regmap = devm_regmap_init_i2c(client, &bmi270_i2c_regmap_config);
  27         if (IS_ERR(regmap))
  28                 return dev_err_probe(dev, PTR_ERR(regmap),
  29                                      "Failed to init i2c regmap");
  30
  31         return bmi270_core_probe(dev, regmap, chip_info);
  32 }
  33
  34 static const struct i2c_device_id bmi270_i2c_id[] = {
  35         { "bmi260", (kernel_ulong_t)&bmi260_chip_info },
  36         { "bmi270", (kernel_ulong_t)&bmi270_chip_info },
  37         { }
  38 };
  39
  40 static const struct acpi_device_id bmi270_acpi_match[] = {
  41         /* GPD Win Mini, Aya Neo AIR Pro, OXP Mini Pro, etc. */
  42         { "BMI0160",  (kernel_ulong_t)&bmi260_chip_info },
  43         { }
  44 };
  45
  46 static const struct of_device_id bmi270_of_match[] = {
  47         { .compatible = "bosch,bmi260", .data = &bmi260_chip_info },
  48         { .compatible = "bosch,bmi270", .data = &bmi270_chip_info },
  49         { }
  50 };
  51
  52 static struct i2c_driver bmi270_i2c_driver = {
  53         .driver = {
  54                 .name = "bmi270_i2c",
  55                 .acpi_match_table = bmi270_acpi_match,
  56                 .of_match_table = bmi270_of_match,
  57         },
  58         .probe = bmi270_i2c_probe,
  59         .id_table = bmi270_i2c_id,
  60 };
  61 module_i2c_driver(bmi270_i2c_driver);
  62
  63 MODULE_AUTHOR("Alex Lanzano");
  64 MODULE_DESCRIPTION("BMI270 driver");
  65 MODULE_LICENSE("GPL");
  66 MODULE_IMPORT_NS("IIO_BMI270");