1 /*
2  * STMicroelectronics pressures driver
3  *
4  * Copyright 2013 STMicroelectronics Inc.
5  *
6  * Denis Ciocca <denis.ciocca@st.com>
7  *
8  * Licensed under the GPL-2.
9  */
10 
11 #include <linux/kernel.h>
12 #include <linux/module.h>
13 #include <linux/slab.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 };
41 MODULE_DEVICE_TABLE(of, st_press_of_match);
42 #else
43 #define st_press_of_match NULL
44 #endif
45 
46 static int st_press_i2c_probe(struct i2c_client *client,
47 						const struct i2c_device_id *id)
48 {
49 	struct iio_dev *indio_dev;
50 	struct st_sensor_data *press_data;
51 	int err;
52 
53 	indio_dev = devm_iio_device_alloc(&client->dev, sizeof(*press_data));
54 	if (!indio_dev)
55 		return -ENOMEM;
56 
57 	press_data = iio_priv(indio_dev);
58 	st_sensors_of_i2c_probe(client, st_press_of_match);
59 
60 	st_sensors_i2c_configure(indio_dev, client, press_data);
61 
62 	err = st_press_common_probe(indio_dev);
63 	if (err < 0)
64 		return err;
65 
66 	return 0;
67 }
68 
69 static int st_press_i2c_remove(struct i2c_client *client)
70 {
71 	st_press_common_remove(i2c_get_clientdata(client));
72 
73 	return 0;
74 }
75 
76 static const struct i2c_device_id st_press_id_table[] = {
77 	{ LPS001WP_PRESS_DEV_NAME },
78 	{ LPS25H_PRESS_DEV_NAME },
79 	{ LPS331AP_PRESS_DEV_NAME },
80 	{},
81 };
82 MODULE_DEVICE_TABLE(i2c, st_press_id_table);
83 
84 static struct i2c_driver st_press_driver = {
85 	.driver = {
86 		.name = "st-press-i2c",
87 		.of_match_table = of_match_ptr(st_press_of_match),
88 	},
89 	.probe = st_press_i2c_probe,
90 	.remove = st_press_i2c_remove,
91 	.id_table = st_press_id_table,
92 };
93 module_i2c_driver(st_press_driver);
94 
95 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
96 MODULE_DESCRIPTION("STMicroelectronics pressures i2c driver");
97 MODULE_LICENSE("GPL v2");
98