drivers/iio/pressure/bmp280-i2c.c

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