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8d32930918
Adds compatibility with the new generation of this sensor, the BMP380. Includes basic sensor initialization to do pressure and temp measurements and allows tuning oversampling settings for each channel. The compensation algorithms are adapted from the device datasheet and the repository https://github.com/BoschSensortec/BMP3-Sensor-API. Signed-off-by: Angel Iglesias <ang.iglesiasg@gmail.com> Link: https://lore.kernel.org/r/f1da2a2f1bc5bb083f318335c23b4f3d9bb8e536.1663025017.git.ang.iglesiasg@gmail.com Signed-off-by: Jonathan Cameron <Jonathan.Cameron@huawei.com>
76 lines
2 KiB
C
76 lines
2 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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#include <linux/module.h>
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#include <linux/i2c.h>
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#include <linux/regmap.h>
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#include "bmp280.h"
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static int bmp280_i2c_probe(struct i2c_client *client,
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const struct i2c_device_id *id)
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{
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struct regmap *regmap;
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const struct regmap_config *regmap_config;
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switch (id->driver_data) {
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case BMP180_CHIP_ID:
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regmap_config = &bmp180_regmap_config;
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break;
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case BMP280_CHIP_ID:
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case BME280_CHIP_ID:
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regmap_config = &bmp280_regmap_config;
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break;
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case BMP380_CHIP_ID:
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regmap_config = &bmp380_regmap_config;
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break;
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default:
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return -EINVAL;
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}
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regmap = devm_regmap_init_i2c(client, regmap_config);
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if (IS_ERR(regmap)) {
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dev_err(&client->dev, "failed to allocate register map\n");
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return PTR_ERR(regmap);
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}
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return bmp280_common_probe(&client->dev,
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regmap,
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id->driver_data,
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id->name,
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client->irq);
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}
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static const struct of_device_id bmp280_of_i2c_match[] = {
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{ .compatible = "bosch,bmp085", .data = (void *)BMP180_CHIP_ID },
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{ .compatible = "bosch,bmp180", .data = (void *)BMP180_CHIP_ID },
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{ .compatible = "bosch,bmp280", .data = (void *)BMP280_CHIP_ID },
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{ .compatible = "bosch,bme280", .data = (void *)BME280_CHIP_ID },
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{ .compatible = "bosch,bmp380", .data = (void *)BMP380_CHIP_ID },
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{ },
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};
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MODULE_DEVICE_TABLE(of, bmp280_of_i2c_match);
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static const struct i2c_device_id bmp280_i2c_id[] = {
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{"bmp085", BMP180_CHIP_ID },
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{"bmp180", BMP180_CHIP_ID },
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{"bmp280", BMP280_CHIP_ID },
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{"bme280", BME280_CHIP_ID },
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{"bmp380", BMP380_CHIP_ID },
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{ },
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};
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MODULE_DEVICE_TABLE(i2c, bmp280_i2c_id);
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static struct i2c_driver bmp280_i2c_driver = {
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.driver = {
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.name = "bmp280",
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.of_match_table = bmp280_of_i2c_match,
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.pm = pm_ptr(&bmp280_dev_pm_ops),
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},
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.probe = bmp280_i2c_probe,
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.id_table = bmp280_i2c_id,
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};
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module_i2c_driver(bmp280_i2c_driver);
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MODULE_AUTHOR("Vlad Dogaru <vlad.dogaru@intel.com>");
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MODULE_DESCRIPTION("Driver for Bosch Sensortec BMP180/BMP280 pressure and temperature sensor");
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MODULE_LICENSE("GPL v2");
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MODULE_IMPORT_NS(IIO_BMP280);
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