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/mod_devicetable.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
20 static 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 .compatible = "st,lps22df",
51 .data = LPS22DF_PRESS_DEV_NAME,
52 },
53 {},
54 };
55 MODULE_DEVICE_TABLE(of, st_press_of_match);
56
57 static const struct acpi_device_id st_press_acpi_match[] = {
58 {"SNO9210", LPS22HB},
59 { },
60 };
61 MODULE_DEVICE_TABLE(acpi, st_press_acpi_match);
62
63 static const struct i2c_device_id st_press_id_table[] = {
64 { LPS001WP_PRESS_DEV_NAME, LPS001WP },
65 { LPS25H_PRESS_DEV_NAME, LPS25H },
66 { LPS331AP_PRESS_DEV_NAME, LPS331AP },
67 { LPS22HB_PRESS_DEV_NAME, LPS22HB },
68 { LPS33HW_PRESS_DEV_NAME, LPS33HW },
69 { LPS35HW_PRESS_DEV_NAME, LPS35HW },
70 { LPS22HH_PRESS_DEV_NAME, LPS22HH },
71 { LPS22DF_PRESS_DEV_NAME, LPS22DF },
72 {},
73 };
74 MODULE_DEVICE_TABLE(i2c, st_press_id_table);
75
st_press_i2c_probe(struct i2c_client * client)76 static int st_press_i2c_probe(struct i2c_client *client)
77 {
78 const struct st_sensor_settings *settings;
79 struct st_sensor_data *press_data;
80 struct iio_dev *indio_dev;
81 int ret;
82
83 st_sensors_dev_name_probe(&client->dev, client->name, sizeof(client->name));
84
85 settings = st_press_get_settings(client->name);
86 if (!settings) {
87 dev_err(&client->dev, "device name %s not recognized.\n",
88 client->name);
89 return -ENODEV;
90 }
91
92 indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*press_data));
93 if (!indio_dev)
94 return -ENOMEM;
95
96 press_data = iio_priv(indio_dev);
97 press_data->sensor_settings = (struct st_sensor_settings *)settings;
98
99 ret = st_sensors_i2c_configure(indio_dev, client);
100 if (ret < 0)
101 return ret;
102
103 ret = st_sensors_power_enable(indio_dev);
104 if (ret)
105 return ret;
106
107 return st_press_common_probe(indio_dev);
108 }
109
110 static struct i2c_driver st_press_driver = {
111 .driver = {
112 .name = "st-press-i2c",
113 .of_match_table = st_press_of_match,
114 .acpi_match_table = st_press_acpi_match,
115 },
116 .probe = st_press_i2c_probe,
117 .id_table = st_press_id_table,
118 };
119 module_i2c_driver(st_press_driver);
120
121 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
122 MODULE_DESCRIPTION("STMicroelectronics pressures i2c driver");
123 MODULE_LICENSE("GPL v2");
124 MODULE_IMPORT_NS(IIO_ST_SENSORS);
125