iio/pressure/bmp280-i2c.c

0001 // SPDX-License-Identifier: GPL-2.0-only
0002 #include <linux/module.h>
0003 #include <linux/i2c.h>
0004 #include <linux/regmap.h>
0005
0006 #include "bmp280.h"
0007
0008 static int bmp280_i2c_probe(struct i2c_client *client,
0009                 const struct i2c_device_id *id)
0010 {
0011     struct regmap *regmap;
0012     const struct regmap_config *regmap_config;
0013
0014     switch (id->driver_data) {
0015     case BMP180_CHIP_ID:
0016         regmap_config = &bmp180_regmap_config;
0017         break;
0018     case BMP280_CHIP_ID:
0019     case BME280_CHIP_ID:
0020         regmap_config = &bmp280_regmap_config;
0021         break;
0022     default:
0023         return -EINVAL;
0024     }
0025
0026     regmap = devm_regmap_init_i2c(client, regmap_config);
0027     if (IS_ERR(regmap)) {
0028         dev_err(&client->dev, "failed to allocate register map\n");
0029         return PTR_ERR(regmap);
0030     }
0031
0032     return bmp280_common_probe(&client->dev,
0033                    regmap,
0034                    id->driver_data,
0035                    id->name,
0036                    client->irq);
0037 }
0038
0039 static const struct of_device_id bmp280_of_i2c_match[] = {
0040     { .compatible = "bosch,bme280", .data = (void *)BME280_CHIP_ID },
0041     { .compatible = "bosch,bmp280", .data = (void *)BMP280_CHIP_ID },
0042     { .compatible = "bosch,bmp180", .data = (void *)BMP180_CHIP_ID },
0043     { .compatible = "bosch,bmp085", .data = (void *)BMP180_CHIP_ID },
0044     { },
0045 };
0046 MODULE_DEVICE_TABLE(of, bmp280_of_i2c_match);
0047
0048 static const struct i2c_device_id bmp280_i2c_id[] = {
0049     {"bmp280", BMP280_CHIP_ID },
0050     {"bmp180", BMP180_CHIP_ID },
0051     {"bmp085", BMP180_CHIP_ID },
0052     {"bme280", BME280_CHIP_ID },
0053     { },
0054 };
0055 MODULE_DEVICE_TABLE(i2c, bmp280_i2c_id);
0056
0057 static struct i2c_driver bmp280_i2c_driver = {
0058     .driver = {
0059         .name   = "bmp280",
0060         .of_match_table = bmp280_of_i2c_match,
0061         .pm = pm_ptr(&bmp280_dev_pm_ops),
0062     },
0063     .probe      = bmp280_i2c_probe,
0064     .id_table   = bmp280_i2c_id,
0065 };
0066 module_i2c_driver(bmp280_i2c_driver);
0067
0068 MODULE_AUTHOR("Vlad Dogaru <vlad.dogaru@intel.com>");
0069 MODULE_DESCRIPTION("Driver for Bosch Sensortec BMP180/BMP280 pressure and temperature sensor");
0070 MODULE_LICENSE("GPL v2");
0071 MODULE_IMPORT_NS(IIO_BMP280);