1 /*
2  * STMicroelectronics st_lsm6dsx i2c driver
3  *
4  * Copyright 2016 STMicroelectronics Inc.
5  *
6  * Lorenzo Bianconi <lorenzo.bianconi@st.com>
7  * Denis Ciocca <denis.ciocca@st.com>
8  *
9  * Licensed under the GPL-2.
10  */
11 
12 #include <linux/kernel.h>
13 #include <linux/module.h>
14 #include <linux/i2c.h>
15 #include <linux/slab.h>
16 #include <linux/of.h>
17 #include <linux/regmap.h>
18 
19 #include "st_lsm6dsx.h"
20 
21 static const struct regmap_config st_lsm6dsx_i2c_regmap_config = {
22 	.reg_bits = 8,
23 	.val_bits = 8,
24 };
25 
26 static int st_lsm6dsx_i2c_probe(struct i2c_client *client,
27 				const struct i2c_device_id *id)
28 {
29 	int hw_id = id->driver_data;
30 	struct regmap *regmap;
31 
32 	regmap = devm_regmap_init_i2c(client, &st_lsm6dsx_i2c_regmap_config);
33 	if (IS_ERR(regmap)) {
34 		dev_err(&client->dev, "Failed to register i2c regmap %d\n",
35 			(int)PTR_ERR(regmap));
36 		return PTR_ERR(regmap);
37 	}
38 
39 	return st_lsm6dsx_probe(&client->dev, client->irq, hw_id, regmap);
40 }
41 
42 static const struct of_device_id st_lsm6dsx_i2c_of_match[] = {
43 	{
44 		.compatible = "st,lsm6ds3",
45 		.data = (void *)ST_LSM6DS3_ID,
46 	},
47 	{
48 		.compatible = "st,lsm6ds3h",
49 		.data = (void *)ST_LSM6DS3H_ID,
50 	},
51 	{
52 		.compatible = "st,lsm6dsl",
53 		.data = (void *)ST_LSM6DSL_ID,
54 	},
55 	{
56 		.compatible = "st,lsm6dsm",
57 		.data = (void *)ST_LSM6DSM_ID,
58 	},
59 	{
60 		.compatible = "st,ism330dlc",
61 		.data = (void *)ST_ISM330DLC_ID,
62 	},
63 	{
64 		.compatible = "st,lsm6dso",
65 		.data = (void *)ST_LSM6DSO_ID,
66 	},
67 	{
68 		.compatible = "st,asm330lhh",
69 		.data = (void *)ST_ASM330LHH_ID,
70 	},
71 	{
72 		.compatible = "st,lsm6dsox",
73 		.data = (void *)ST_LSM6DSOX_ID,
74 	},
75 	{
76 		.compatible = "st,lsm6dsr",
77 		.data = (void *)ST_LSM6DSR_ID,
78 	},
79 	{},
80 };
81 MODULE_DEVICE_TABLE(of, st_lsm6dsx_i2c_of_match);
82 
83 static const struct i2c_device_id st_lsm6dsx_i2c_id_table[] = {
84 	{ ST_LSM6DS3_DEV_NAME, ST_LSM6DS3_ID },
85 	{ ST_LSM6DS3H_DEV_NAME, ST_LSM6DS3H_ID },
86 	{ ST_LSM6DSL_DEV_NAME, ST_LSM6DSL_ID },
87 	{ ST_LSM6DSM_DEV_NAME, ST_LSM6DSM_ID },
88 	{ ST_ISM330DLC_DEV_NAME, ST_ISM330DLC_ID },
89 	{ ST_LSM6DSO_DEV_NAME, ST_LSM6DSO_ID },
90 	{ ST_ASM330LHH_DEV_NAME, ST_ASM330LHH_ID },
91 	{ ST_LSM6DSOX_DEV_NAME, ST_LSM6DSOX_ID },
92 	{ ST_LSM6DSR_DEV_NAME, ST_LSM6DSR_ID },
93 	{},
94 };
95 MODULE_DEVICE_TABLE(i2c, st_lsm6dsx_i2c_id_table);
96 
97 static struct i2c_driver st_lsm6dsx_driver = {
98 	.driver = {
99 		.name = "st_lsm6dsx_i2c",
100 		.pm = &st_lsm6dsx_pm_ops,
101 		.of_match_table = of_match_ptr(st_lsm6dsx_i2c_of_match),
102 	},
103 	.probe = st_lsm6dsx_i2c_probe,
104 	.id_table = st_lsm6dsx_i2c_id_table,
105 };
106 module_i2c_driver(st_lsm6dsx_driver);
107 
108 MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi@st.com>");
109 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
110 MODULE_DESCRIPTION("STMicroelectronics st_lsm6dsx i2c driver");
111 MODULE_LICENSE("GPL v2");
112