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// SPDX-License-Identifier: GPL-2.0-only
/*
* STMicroelectronics hts221 i2c driver
*
* Copyright 2016 STMicroelectronics Inc.
*
* Lorenzo Bianconi <lorenzo.bianconi@st.com>
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/acpi.h>
#include <linux/i2c.h>
#include <linux/slab.h>
#include <linux/regmap.h>
#include "hts221.h"
#define HTS221_I2C_AUTO_INCREMENT BIT(7)
static const struct regmap_config hts221_i2c_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.write_flag_mask = HTS221_I2C_AUTO_INCREMENT,
.read_flag_mask = HTS221_I2C_AUTO_INCREMENT,
};
static int hts221_i2c_probe(struct i2c_client *client)
{
struct regmap *regmap;
regmap = devm_regmap_init_i2c(client, &hts221_i2c_regmap_config);
if (IS_ERR(regmap)) {
dev_err(&client->dev, "Failed to register i2c regmap %ld\n",
PTR_ERR(regmap));
return PTR_ERR(regmap);
}
return hts221_probe(&client->dev, client->irq,
client->name, regmap);
}
static const struct acpi_device_id hts221_acpi_match[] = {
{"SMO9100", 0},
{ },
};
MODULE_DEVICE_TABLE(acpi, hts221_acpi_match);
static const struct of_device_id hts221_i2c_of_match[] = {
{ .compatible = "st,hts221", },
{},
};
MODULE_DEVICE_TABLE(of, hts221_i2c_of_match);
static const struct i2c_device_id hts221_i2c_id_table[] = {
{ HTS221_DEV_NAME },
{},
};
MODULE_DEVICE_TABLE(i2c, hts221_i2c_id_table);
static struct i2c_driver hts221_driver = {
.driver = {
.name = "hts221_i2c",
.pm = pm_sleep_ptr(&hts221_pm_ops),
.of_match_table = hts221_i2c_of_match,
.acpi_match_table = ACPI_PTR(hts221_acpi_match),
},
.probe_new = hts221_i2c_probe,
.id_table = hts221_i2c_id_table,
};
module_i2c_driver(hts221_driver);
MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi@st.com>");
MODULE_DESCRIPTION("STMicroelectronics hts221 i2c driver");
MODULE_LICENSE("GPL v2");
MODULE_IMPORT_NS(IIO_HTS221);
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