1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * STMicroelectronics st_lsm6dsx i2c driver
4  *
5  * Copyright 2016 STMicroelectronics Inc.
6  *
7  * Lorenzo Bianconi <lorenzo.bianconi@st.com>
8  * Denis Ciocca <denis.ciocca@st.com>
9  */
10 
11 #include <linux/kernel.h>
12 #include <linux/module.h>
13 #include <linux/i2c.h>
14 #include <linux/slab.h>
15 #include <linux/regmap.h>
16 
17 #include "st_lsm6dsx.h"
18 
19 static const struct regmap_config st_lsm6dsx_i2c_regmap_config = {
20 	.reg_bits = 8,
21 	.val_bits = 8,
22 };
23 
24 static int st_lsm6dsx_i2c_probe(struct i2c_client *client,
25 				const struct i2c_device_id *id)
26 {
27 	int hw_id = id->driver_data;
28 	struct regmap *regmap;
29 
30 	regmap = devm_regmap_init_i2c(client, &st_lsm6dsx_i2c_regmap_config);
31 	if (IS_ERR(regmap)) {
32 		dev_err(&client->dev, "Failed to register i2c regmap %d\n",
33 			(int)PTR_ERR(regmap));
34 		return PTR_ERR(regmap);
35 	}
36 
37 	return st_lsm6dsx_probe(&client->dev, client->irq, hw_id, regmap);
38 }
39 
40 static const struct of_device_id st_lsm6dsx_i2c_of_match[] = {
41 	{
42 		.compatible = "st,lsm6ds3",
43 		.data = (void *)ST_LSM6DS3_ID,
44 	},
45 	{
46 		.compatible = "st,lsm6ds3h",
47 		.data = (void *)ST_LSM6DS3H_ID,
48 	},
49 	{
50 		.compatible = "st,lsm6dsl",
51 		.data = (void *)ST_LSM6DSL_ID,
52 	},
53 	{
54 		.compatible = "st,lsm6dsm",
55 		.data = (void *)ST_LSM6DSM_ID,
56 	},
57 	{
58 		.compatible = "st,ism330dlc",
59 		.data = (void *)ST_ISM330DLC_ID,
60 	},
61 	{
62 		.compatible = "st,lsm6dso",
63 		.data = (void *)ST_LSM6DSO_ID,
64 	},
65 	{
66 		.compatible = "st,asm330lhh",
67 		.data = (void *)ST_ASM330LHH_ID,
68 	},
69 	{
70 		.compatible = "st,lsm6dsox",
71 		.data = (void *)ST_LSM6DSOX_ID,
72 	},
73 	{
74 		.compatible = "st,lsm6dsr",
75 		.data = (void *)ST_LSM6DSR_ID,
76 	},
77 	{
78 		.compatible = "st,lsm6ds3tr-c",
79 		.data = (void *)ST_LSM6DS3TRC_ID,
80 	},
81 	{
82 		.compatible = "st,ism330dhcx",
83 		.data = (void *)ST_ISM330DHCX_ID,
84 	},
85 	{
86 		.compatible = "st,lsm9ds1-imu",
87 		.data = (void *)ST_LSM9DS1_ID,
88 	},
89 	{
90 		.compatible = "st,lsm6ds0",
91 		.data = (void *)ST_LSM6DS0_ID,
92 	},
93 	{
94 		.compatible = "st,lsm6dsrx",
95 		.data = (void *)ST_LSM6DSRX_ID,
96 	},
97 	{},
98 };
99 MODULE_DEVICE_TABLE(of, st_lsm6dsx_i2c_of_match);
100 
101 static const struct i2c_device_id st_lsm6dsx_i2c_id_table[] = {
102 	{ ST_LSM6DS3_DEV_NAME, ST_LSM6DS3_ID },
103 	{ ST_LSM6DS3H_DEV_NAME, ST_LSM6DS3H_ID },
104 	{ ST_LSM6DSL_DEV_NAME, ST_LSM6DSL_ID },
105 	{ ST_LSM6DSM_DEV_NAME, ST_LSM6DSM_ID },
106 	{ ST_ISM330DLC_DEV_NAME, ST_ISM330DLC_ID },
107 	{ ST_LSM6DSO_DEV_NAME, ST_LSM6DSO_ID },
108 	{ ST_ASM330LHH_DEV_NAME, ST_ASM330LHH_ID },
109 	{ ST_LSM6DSOX_DEV_NAME, ST_LSM6DSOX_ID },
110 	{ ST_LSM6DSR_DEV_NAME, ST_LSM6DSR_ID },
111 	{ ST_LSM6DS3TRC_DEV_NAME, ST_LSM6DS3TRC_ID },
112 	{ ST_ISM330DHCX_DEV_NAME, ST_ISM330DHCX_ID },
113 	{ ST_LSM9DS1_DEV_NAME, ST_LSM9DS1_ID },
114 	{ ST_LSM6DS0_DEV_NAME, ST_LSM6DS0_ID },
115 	{ ST_LSM6DSRX_DEV_NAME, ST_LSM6DSRX_ID },
116 	{},
117 };
118 MODULE_DEVICE_TABLE(i2c, st_lsm6dsx_i2c_id_table);
119 
120 static struct i2c_driver st_lsm6dsx_driver = {
121 	.driver = {
122 		.name = "st_lsm6dsx_i2c",
123 		.pm = &st_lsm6dsx_pm_ops,
124 		.of_match_table = st_lsm6dsx_i2c_of_match,
125 	},
126 	.probe = st_lsm6dsx_i2c_probe,
127 	.id_table = st_lsm6dsx_i2c_id_table,
128 };
129 module_i2c_driver(st_lsm6dsx_driver);
130 
131 MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi@st.com>");
132 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
133 MODULE_DESCRIPTION("STMicroelectronics st_lsm6dsx i2c driver");
134 MODULE_LICENSE("GPL v2");
135