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/kernel.h>
11#include <linux/module.h>
12#include <linux/slab.h>
13#include <linux/i2c.h>
14#include <linux/iio/iio.h>
15
16#include <linux/iio/common/st_sensors.h>
17#include <linux/iio/common/st_sensors_i2c.h>
18#include "st_pressure.h"
19
20static const struct of_device_id st_press_of_match[] = {
21	{
22		.compatible = "st,lps001wp-press",
23		.data = LPS001WP_PRESS_DEV_NAME,
24	},
25	{
26		.compatible = "st,lps25h-press",
27		.data = LPS25H_PRESS_DEV_NAME,
28	},
29	{
30		.compatible = "st,lps331ap-press",
31		.data = LPS331AP_PRESS_DEV_NAME,
32	},
33	{
34		.compatible = "st,lps22hb-press",
35		.data = LPS22HB_PRESS_DEV_NAME,
36	},
37	{
38		.compatible = "st,lps33hw",
39		.data = LPS33HW_PRESS_DEV_NAME,
40	},
41	{
42		.compatible = "st,lps35hw",
43		.data = LPS35HW_PRESS_DEV_NAME,
44	},
45	{
46		.compatible = "st,lps22hh",
47		.data = LPS22HH_PRESS_DEV_NAME,
48	},
49	{},
50};
51MODULE_DEVICE_TABLE(of, st_press_of_match);
52
53#ifdef CONFIG_ACPI
54static const struct acpi_device_id st_press_acpi_match[] = {
55	{"SNO9210", LPS22HB},
56	{ },
57};
58MODULE_DEVICE_TABLE(acpi, st_press_acpi_match);
59#endif
60
61static const struct i2c_device_id st_press_id_table[] = {
62	{ LPS001WP_PRESS_DEV_NAME, LPS001WP },
63	{ LPS25H_PRESS_DEV_NAME,  LPS25H },
64	{ LPS331AP_PRESS_DEV_NAME, LPS331AP },
65	{ LPS22HB_PRESS_DEV_NAME, LPS22HB },
66	{ LPS33HW_PRESS_DEV_NAME, LPS33HW },
67	{ LPS35HW_PRESS_DEV_NAME, LPS35HW },
68	{ LPS22HH_PRESS_DEV_NAME, LPS22HH },
69	{},
70};
71MODULE_DEVICE_TABLE(i2c, st_press_id_table);
72
73static int st_press_i2c_probe(struct i2c_client *client,
74			      const struct i2c_device_id *id)
75{
76	const struct st_sensor_settings *settings;
77	struct st_sensor_data *press_data;
78	struct iio_dev *indio_dev;
79	int ret;
80
81	st_sensors_dev_name_probe(&client->dev, client->name, sizeof(client->name));
82
83	settings = st_press_get_settings(client->name);
84	if (!settings) {
85		dev_err(&client->dev, "device name %s not recognized.\n",
86			client->name);
87		return -ENODEV;
88	}
89
90	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*press_data));
91	if (!indio_dev)
92		return -ENOMEM;
93
94	press_data = iio_priv(indio_dev);
95	press_data->sensor_settings = (struct st_sensor_settings *)settings;
96
97	ret = st_sensors_i2c_configure(indio_dev, client);
98	if (ret < 0)
99		return ret;
100
101	ret = st_sensors_power_enable(indio_dev);
102	if (ret)
103		return ret;
104
105	ret = st_press_common_probe(indio_dev);
106	if (ret < 0)
107		goto st_press_power_off;
108
109	return 0;
110
111st_press_power_off:
112	st_sensors_power_disable(indio_dev);
113
114	return ret;
115}
116
117static int st_press_i2c_remove(struct i2c_client *client)
118{
119	struct iio_dev *indio_dev = i2c_get_clientdata(client);
120
121	st_press_common_remove(indio_dev);
122
123	st_sensors_power_disable(indio_dev);
124
125	return 0;
126}
127
128static struct i2c_driver st_press_driver = {
129	.driver = {
130		.name = "st-press-i2c",
131		.of_match_table = st_press_of_match,
132		.acpi_match_table = ACPI_PTR(st_press_acpi_match),
133	},
134	.probe = st_press_i2c_probe,
135	.remove = st_press_i2c_remove,
136	.id_table = st_press_id_table,
137};
138module_i2c_driver(st_press_driver);
139
140MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
141MODULE_DESCRIPTION("STMicroelectronics pressures i2c driver");
142MODULE_LICENSE("GPL v2");
143