This source file includes following definitions.
- st_press_i2c_probe
- st_press_i2c_remove
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10 #include <linux/kernel.h>
11 #include <linux/module.h>
12 #include <linux/slab.h>
13 #include <linux/acpi.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 #ifdef CONFIG_OF
22 static const struct of_device_id st_press_of_match[] = {
23 {
24 .compatible = "st,lps001wp-press",
25 .data = LPS001WP_PRESS_DEV_NAME,
26 },
27 {
28 .compatible = "st,lps25h-press",
29 .data = LPS25H_PRESS_DEV_NAME,
30 },
31 {
32 .compatible = "st,lps331ap-press",
33 .data = LPS331AP_PRESS_DEV_NAME,
34 },
35 {
36 .compatible = "st,lps22hb-press",
37 .data = LPS22HB_PRESS_DEV_NAME,
38 },
39 {
40 .compatible = "st,lps33hw",
41 .data = LPS33HW_PRESS_DEV_NAME,
42 },
43 {
44 .compatible = "st,lps35hw",
45 .data = LPS35HW_PRESS_DEV_NAME,
46 },
47 {
48 .compatible = "st,lps22hh",
49 .data = LPS22HH_PRESS_DEV_NAME,
50 },
51 {},
52 };
53 MODULE_DEVICE_TABLE(of, st_press_of_match);
54 #else
55 #define st_press_of_match NULL
56 #endif
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 #else
65 #define st_press_acpi_match NULL
66 #endif
67
68 static const struct i2c_device_id st_press_id_table[] = {
69 { LPS001WP_PRESS_DEV_NAME, LPS001WP },
70 { LPS25H_PRESS_DEV_NAME, LPS25H },
71 { LPS331AP_PRESS_DEV_NAME, LPS331AP },
72 { LPS22HB_PRESS_DEV_NAME, LPS22HB },
73 { LPS33HW_PRESS_DEV_NAME, LPS33HW },
74 { LPS35HW_PRESS_DEV_NAME, LPS35HW },
75 { LPS22HH_PRESS_DEV_NAME, LPS22HH },
76 {},
77 };
78 MODULE_DEVICE_TABLE(i2c, st_press_id_table);
79
80 static int st_press_i2c_probe(struct i2c_client *client,
81 const struct i2c_device_id *id)
82 {
83 const struct st_sensor_settings *settings;
84 struct st_sensor_data *press_data;
85 struct iio_dev *indio_dev;
86 int ret;
87
88 if (client->dev.of_node) {
89 st_sensors_of_name_probe(&client->dev, st_press_of_match,
90 client->name, sizeof(client->name));
91 } else if (ACPI_HANDLE(&client->dev)) {
92 ret = st_sensors_match_acpi_device(&client->dev);
93 if ((ret < 0) || (ret >= ST_PRESS_MAX))
94 return -ENODEV;
95
96 strlcpy(client->name, st_press_id_table[ret].name,
97 sizeof(client->name));
98 } else if (!id)
99 return -ENODEV;
100
101 settings = st_press_get_settings(client->name);
102 if (!settings) {
103 dev_err(&client->dev, "device name %s not recognized.\n",
104 client->name);
105 return -ENODEV;
106 }
107
108 indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*press_data));
109 if (!indio_dev)
110 return -ENOMEM;
111
112 press_data = iio_priv(indio_dev);
113 press_data->sensor_settings = (struct st_sensor_settings *)settings;
114
115 ret = st_sensors_i2c_configure(indio_dev, client);
116 if (ret < 0)
117 return ret;
118
119 ret = st_press_common_probe(indio_dev);
120 if (ret < 0)
121 return ret;
122
123 return 0;
124 }
125
126 static int st_press_i2c_remove(struct i2c_client *client)
127 {
128 st_press_common_remove(i2c_get_clientdata(client));
129
130 return 0;
131 }
132
133 static struct i2c_driver st_press_driver = {
134 .driver = {
135 .name = "st-press-i2c",
136 .of_match_table = of_match_ptr(st_press_of_match),
137 .acpi_match_table = ACPI_PTR(st_press_acpi_match),
138 },
139 .probe = st_press_i2c_probe,
140 .remove = st_press_i2c_remove,
141 .id_table = st_press_id_table,
142 };
143 module_i2c_driver(st_press_driver);
144
145 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
146 MODULE_DESCRIPTION("STMicroelectronics pressures i2c driver");
147 MODULE_LICENSE("GPL v2");