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
21 static 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 };
56 MODULE_DEVICE_TABLE(of, st_press_of_match);
57
58 #ifdef CONFIG_ACPI
59 static const struct acpi_device_id st_press_acpi_match[] = {
60 {"SNO9210", LPS22HB},
61 { },
62 };
63 MODULE_DEVICE_TABLE(acpi, st_press_acpi_match);
64 #endif
65
66 static 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 };
77 MODULE_DEVICE_TABLE(i2c, st_press_id_table);
78
st_press_i2c_probe(struct i2c_client * client,const struct i2c_device_id * id)79 static int st_press_i2c_probe(struct i2c_client *client,
80 const struct i2c_device_id *id)
81 {
82 const struct st_sensor_settings *settings;
83 struct st_sensor_data *press_data;
84 struct iio_dev *indio_dev;
85 int ret;
86
87 st_sensors_dev_name_probe(&client->dev, client->name, sizeof(client->name));
88
89 settings = st_press_get_settings(client->name);
90 if (!settings) {
91 dev_err(&client->dev, "device name %s not recognized.\n",
92 client->name);
93 return -ENODEV;
94 }
95
96 indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*press_data));
97 if (!indio_dev)
98 return -ENOMEM;
99
100 press_data = iio_priv(indio_dev);
101 press_data->sensor_settings = (struct st_sensor_settings *)settings;
102
103 ret = st_sensors_i2c_configure(indio_dev, client);
104 if (ret < 0)
105 return ret;
106
107 ret = st_sensors_power_enable(indio_dev);
108 if (ret)
109 return ret;
110
111 return st_press_common_probe(indio_dev);
112 }
113
114 static struct i2c_driver st_press_driver = {
115 .driver = {
116 .name = "st-press-i2c",
117 .of_match_table = st_press_of_match,
118 .acpi_match_table = ACPI_PTR(st_press_acpi_match),
119 },
120 .probe = st_press_i2c_probe,
121 .id_table = st_press_id_table,
122 };
123 module_i2c_driver(st_press_driver);
124
125 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
126 MODULE_DESCRIPTION("STMicroelectronics pressures i2c driver");
127 MODULE_LICENSE("GPL v2");
128 MODULE_IMPORT_NS(IIO_ST_SENSORS);
129
