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/*
* STMicroelectronics pressures driver
*
* Copyright 2013 STMicroelectronics Inc.
*
* Denis Ciocca <denis.ciocca@st.com>
*
* Licensed under the GPL-2.
*/
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/slab.h>
#include <linux/acpi.h>
#include <linux/i2c.h>
#include <linux/iio/iio.h>
#include <linux/iio/common/st_sensors.h>
#include <linux/iio/common/st_sensors_i2c.h>
#include "st_pressure.h"
#ifdef CONFIG_OF
static const struct of_device_id st_press_of_match[] = {
{
.compatible = "st,lps001wp-press",
.data = LPS001WP_PRESS_DEV_NAME,
},
{
.compatible = "st,lps25h-press",
.data = LPS25H_PRESS_DEV_NAME,
},
{
.compatible = "st,lps331ap-press",
.data = LPS331AP_PRESS_DEV_NAME,
},
{
.compatible = "st,lps22hb-press",
.data = LPS22HB_PRESS_DEV_NAME,
},
{},
};
MODULE_DEVICE_TABLE(of, st_press_of_match);
#else
#define st_press_of_match NULL
#endif
#ifdef CONFIG_ACPI
static const struct acpi_device_id st_press_acpi_match[] = {
{"SNO9210", LPS22HB},
{ },
};
MODULE_DEVICE_TABLE(acpi, st_press_acpi_match);
#else
#define st_press_acpi_match NULL
#endif
static const struct i2c_device_id st_press_id_table[] = {
{ LPS001WP_PRESS_DEV_NAME, LPS001WP },
{ LPS25H_PRESS_DEV_NAME, LPS25H },
{ LPS331AP_PRESS_DEV_NAME, LPS331AP },
{ LPS22HB_PRESS_DEV_NAME, LPS22HB },
{},
};
MODULE_DEVICE_TABLE(i2c, st_press_id_table);
static int st_press_i2c_probe(struct i2c_client *client,
const struct i2c_device_id *id)
{
struct iio_dev *indio_dev;
struct st_sensor_data *press_data;
int ret;
indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*press_data));
if (!indio_dev)
return -ENOMEM;
press_data = iio_priv(indio_dev);
if (client->dev.of_node) {
st_sensors_of_i2c_probe(client, st_press_of_match);
} else if (ACPI_HANDLE(&client->dev)) {
ret = st_sensors_match_acpi_device(&client->dev);
if ((ret < 0) || (ret >= ST_PRESS_MAX))
return -ENODEV;
strncpy(client->name, st_press_id_table[ret].name,
sizeof(client->name));
client->name[sizeof(client->name) - 1] = '\0';
} else if (!id)
return -ENODEV;
st_sensors_i2c_configure(indio_dev, client, press_data);
ret = st_press_common_probe(indio_dev);
if (ret < 0)
return ret;
return 0;
}
static int st_press_i2c_remove(struct i2c_client *client)
{
st_press_common_remove(i2c_get_clientdata(client));
return 0;
}
static struct i2c_driver st_press_driver = {
.driver = {
.name = "st-press-i2c",
.of_match_table = of_match_ptr(st_press_of_match),
.acpi_match_table = ACPI_PTR(st_press_acpi_match),
},
.probe = st_press_i2c_probe,
.remove = st_press_i2c_remove,
.id_table = st_press_id_table,
};
module_i2c_driver(st_press_driver);
MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
MODULE_DESCRIPTION("STMicroelectronics pressures i2c driver");
MODULE_LICENSE("GPL v2");
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