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 | |
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(dev: &client->dev, name: client->name, len: sizeof(client->name)); |
84 | |
85 | settings = st_press_get_settings(name: 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(parent: &client->dev, sizeof_priv: 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 | |