drivers/iio/pressure/bmp280-i2c.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 #include <linux/module.h>
   3 #include <linux/i2c.h>
   4 #include <linux/regmap.h>
   5
   6 #include "bmp280.h"
   7
   8 static int bmp280_i2c_probe(struct i2c_client *client,
   9                             const struct i2c_device_id *id)
  10 {
  11         struct regmap *regmap;
  12         const struct regmap_config *regmap_config;
  13
  14         switch (id->driver_data) {
  15         case BMP180_CHIP_ID:
  16                 regmap_config = &bmp180_regmap_config;
  17                 break;
  18         case BMP280_CHIP_ID:
  19         case BME280_CHIP_ID:
  20                 regmap_config = &bmp280_regmap_config;
  21                 break;
  22         default:
  23                 return -EINVAL;
  24         }
  25
  26         regmap = devm_regmap_init_i2c(client, regmap_config);
  27         if (IS_ERR(regmap)) {
  28                 dev_err(&client->dev, "failed to allocate register map\n");
  29                 return PTR_ERR(regmap);
  30         }
  31
  32         return bmp280_common_probe(&client->dev,
  33                                    regmap,
  34                                    id->driver_data,
  35                                    id->name,
  36                                    client->irq);
  37 }
  38
  39 static const struct of_device_id bmp280_of_i2c_match[] = {
  40         { .compatible = "bosch,bme280", .data = (void *)BME280_CHIP_ID },
  41         { .compatible = "bosch,bmp280", .data = (void *)BMP280_CHIP_ID },
  42         { .compatible = "bosch,bmp180", .data = (void *)BMP180_CHIP_ID },
  43         { .compatible = "bosch,bmp085", .data = (void *)BMP180_CHIP_ID },
  44         { },
  45 };
  46 MODULE_DEVICE_TABLE(of, bmp280_of_i2c_match);
  47
  48 static const struct i2c_device_id bmp280_i2c_id[] = {
  49         {"bmp280", BMP280_CHIP_ID },
  50         {"bmp180", BMP180_CHIP_ID },
  51         {"bmp085", BMP180_CHIP_ID },
  52         {"bme280", BME280_CHIP_ID },
  53         { },
  54 };
  55 MODULE_DEVICE_TABLE(i2c, bmp280_i2c_id);
  56
  57 static struct i2c_driver bmp280_i2c_driver = {
  58         .driver = {
  59                 .name   = "bmp280",
  60                 .of_match_table = bmp280_of_i2c_match,
  61                 .pm = &bmp280_dev_pm_ops,
  62         },
  63         .probe          = bmp280_i2c_probe,
  64         .id_table       = bmp280_i2c_id,
  65 };
  66 module_i2c_driver(bmp280_i2c_driver);
  67
  68 MODULE_AUTHOR("Vlad Dogaru <vlad.dogaru@intel.com>");
  69 MODULE_DESCRIPTION("Driver for Bosch Sensortec BMP180/BMP280 pressure and temperature sensor");
  70 MODULE_LICENSE("GPL v2");