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/acpi.h>
   5 #include <linux/of.h>
   6 #include <linux/regmap.h>
   7
   8 #include "bmp280.h"
   9
  10 static int bmp280_i2c_probe(struct i2c_client *client,
  11                             const struct i2c_device_id *id)
  12 {
  13         struct regmap *regmap;
  14         const struct regmap_config *regmap_config;
  15
  16         switch (id->driver_data) {
  17         case BMP180_CHIP_ID:
  18                 regmap_config = &bmp180_regmap_config;
  19                 break;
  20         case BMP280_CHIP_ID:
  21         case BME280_CHIP_ID:
  22                 regmap_config = &bmp280_regmap_config;
  23                 break;
  24         default:
  25                 return -EINVAL;
  26         }
  27
  28         regmap = devm_regmap_init_i2c(client, regmap_config);
  29         if (IS_ERR(regmap)) {
  30                 dev_err(&client->dev, "failed to allocate register map\n");
  31                 return PTR_ERR(regmap);
  32         }
  33
  34         return bmp280_common_probe(&client->dev,
  35                                    regmap,
  36                                    id->driver_data,
  37                                    id->name,
  38                                    client->irq);
  39 }
  40
  41 static int bmp280_i2c_remove(struct i2c_client *client)
  42 {
  43         return bmp280_common_remove(&client->dev);
  44 }
  45
  46 static const struct acpi_device_id bmp280_acpi_i2c_match[] = {
  47         {"BMP0280", BMP280_CHIP_ID },
  48         {"BMP0180", BMP180_CHIP_ID },
  49         {"BMP0085", BMP180_CHIP_ID },
  50         {"BME0280", BME280_CHIP_ID },
  51         { },
  52 };
  53 MODULE_DEVICE_TABLE(acpi, bmp280_acpi_i2c_match);
  54
  55 #ifdef CONFIG_OF
  56 static const struct of_device_id bmp280_of_i2c_match[] = {
  57         { .compatible = "bosch,bme280", .data = (void *)BME280_CHIP_ID },
  58         { .compatible = "bosch,bmp280", .data = (void *)BMP280_CHIP_ID },
  59         { .compatible = "bosch,bmp180", .data = (void *)BMP180_CHIP_ID },
  60         { .compatible = "bosch,bmp085", .data = (void *)BMP180_CHIP_ID },
  61         { },
  62 };
  63 MODULE_DEVICE_TABLE(of, bmp280_of_i2c_match);
  64 #else
  65 #define bmp280_of_i2c_match NULL
  66 #endif
  67
  68 static const struct i2c_device_id bmp280_i2c_id[] = {
  69         {"bmp280", BMP280_CHIP_ID },
  70         {"bmp180", BMP180_CHIP_ID },
  71         {"bmp085", BMP180_CHIP_ID },
  72         {"bme280", BME280_CHIP_ID },
  73         { },
  74 };
  75 MODULE_DEVICE_TABLE(i2c, bmp280_i2c_id);
  76
  77 static struct i2c_driver bmp280_i2c_driver = {
  78         .driver = {
  79                 .name   = "bmp280",
  80                 .acpi_match_table = ACPI_PTR(bmp280_acpi_i2c_match),
  81                 .of_match_table = of_match_ptr(bmp280_of_i2c_match),
  82                 .pm = &bmp280_dev_pm_ops,
  83         },
  84         .probe          = bmp280_i2c_probe,
  85         .remove         = bmp280_i2c_remove,
  86         .id_table       = bmp280_i2c_id,
  87 };
  88 module_i2c_driver(bmp280_i2c_driver);
  89
  90 MODULE_AUTHOR("Vlad Dogaru <vlad.dogaru@intel.com>");
  91 MODULE_DESCRIPTION("Driver for Bosch Sensortec BMP180/BMP280 pressure and temperature sensor");
  92 MODULE_LICENSE("GPL v2");