1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * STMicroelectronics pressures driver
4 *
5 * Copyright 2013 STMicroelectronics Inc.
6 *
7 * Denis Ciocca <denis.ciocca@st.com>
8 */
9
10#include <linux/acpi.h>
11#include <linux/kernel.h>
12#include <linux/module.h>
13#include <linux/mod_devicetable.h>
14#include <linux/i2c.h>
15#include <linux/iio/iio.h>
16
17#include <linux/iio/common/st_sensors.h>
18#include <linux/iio/common/st_sensors_i2c.h>
19#include "st_pressure.h"
20
21static const struct of_device_id st_press_of_match[] = {
22	{
23		.compatible = "st,lps001wp-press",
24		.data = LPS001WP_PRESS_DEV_NAME,
25	},
26	{
27		.compatible = "st,lps25h-press",
28		.data = LPS25H_PRESS_DEV_NAME,
29	},
30	{
31		.compatible = "st,lps331ap-press",
32		.data = LPS331AP_PRESS_DEV_NAME,
33	},
34	{
35		.compatible = "st,lps22hb-press",
36		.data = LPS22HB_PRESS_DEV_NAME,
37	},
38	{
39		.compatible = "st,lps33hw",
40		.data = LPS33HW_PRESS_DEV_NAME,
41	},
42	{
43		.compatible = "st,lps35hw",
44		.data = LPS35HW_PRESS_DEV_NAME,
45	},
46	{
47		.compatible = "st,lps22hh",
48		.data = LPS22HH_PRESS_DEV_NAME,
49	},
50	{
51		.compatible = "st,lps22df",
52		.data = LPS22DF_PRESS_DEV_NAME,
53	},
54	{},
55};
56MODULE_DEVICE_TABLE(of, st_press_of_match);
57
58#ifdef CONFIG_ACPI
59static const struct acpi_device_id st_press_acpi_match[] = {
60	{"SNO9210", LPS22HB},
61	{ },
62};
63MODULE_DEVICE_TABLE(acpi, st_press_acpi_match);
64#endif
65
66static const struct i2c_device_id st_press_id_table[] = {
67	{ LPS001WP_PRESS_DEV_NAME, LPS001WP },
68	{ LPS25H_PRESS_DEV_NAME,  LPS25H },
69	{ LPS331AP_PRESS_DEV_NAME, LPS331AP },
70	{ LPS22HB_PRESS_DEV_NAME, LPS22HB },
71	{ LPS33HW_PRESS_DEV_NAME, LPS33HW },
72	{ LPS35HW_PRESS_DEV_NAME, LPS35HW },
73	{ LPS22HH_PRESS_DEV_NAME, LPS22HH },
74	{ LPS22DF_PRESS_DEV_NAME, LPS22DF },
75	{},
76};
77MODULE_DEVICE_TABLE(i2c, st_press_id_table);
78
79static int st_press_i2c_probe(struct i2c_client *client)
80{
81	const struct st_sensor_settings *settings;
82	struct st_sensor_data *press_data;
83	struct iio_dev *indio_dev;
84	int ret;
85
86	st_sensors_dev_name_probe(&client->dev, client->name, sizeof(client->name));
87
88	settings = st_press_get_settings(client->name);
89	if (!settings) {
90		dev_err(&client->dev, "device name %s not recognized.\n",
91			client->name);
92		return -ENODEV;
93	}
94
95	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*press_data));
96	if (!indio_dev)
97		return -ENOMEM;
98
99	press_data = iio_priv(indio_dev);
100	press_data->sensor_settings = (struct st_sensor_settings *)settings;
101
102	ret = st_sensors_i2c_configure(indio_dev, client);
103	if (ret < 0)
104		return ret;
105
106	ret = st_sensors_power_enable(indio_dev);
107	if (ret)
108		return ret;
109
110	return st_press_common_probe(indio_dev);
111}
112
113static struct i2c_driver st_press_driver = {
114	.driver = {
115		.name = "st-press-i2c",
116		.of_match_table = st_press_of_match,
117		.acpi_match_table = ACPI_PTR(st_press_acpi_match),
118	},
119	.probe = st_press_i2c_probe,
120	.id_table = st_press_id_table,
121};
122module_i2c_driver(st_press_driver);
123
124MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
125MODULE_DESCRIPTION("STMicroelectronics pressures i2c driver");
126MODULE_LICENSE("GPL v2");
127MODULE_IMPORT_NS(IIO_ST_SENSORS);
128