1 // SPDX-License-Identifier: GPL-2.0-only
2 /*
3  * STMicroelectronics st_lsm6dsx spi 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/spi/spi.h>
14 #include <linux/slab.h>
15 #include <linux/of.h>
16 #include <linux/regmap.h>
17 
18 #include "st_lsm6dsx.h"
19 
20 static const struct regmap_config st_lsm6dsx_spi_regmap_config = {
21 	.reg_bits = 8,
22 	.val_bits = 8,
23 };
24 
25 static int st_lsm6dsx_spi_probe(struct spi_device *spi)
26 {
27 	const struct spi_device_id *id = spi_get_device_id(spi);
28 	int hw_id = id->driver_data;
29 	struct regmap *regmap;
30 
31 	regmap = devm_regmap_init_spi(spi, &st_lsm6dsx_spi_regmap_config);
32 	if (IS_ERR(regmap)) {
33 		dev_err(&spi->dev, "Failed to register spi regmap %d\n",
34 			(int)PTR_ERR(regmap));
35 		return PTR_ERR(regmap);
36 	}
37 
38 	return st_lsm6dsx_probe(&spi->dev, spi->irq, hw_id, regmap);
39 }
40 
41 static const struct of_device_id st_lsm6dsx_spi_of_match[] = {
42 	{
43 		.compatible = "st,lsm6ds3",
44 		.data = (void *)ST_LSM6DS3_ID,
45 	},
46 	{
47 		.compatible = "st,lsm6ds3h",
48 		.data = (void *)ST_LSM6DS3H_ID,
49 	},
50 	{
51 		.compatible = "st,lsm6dsl",
52 		.data = (void *)ST_LSM6DSL_ID,
53 	},
54 	{
55 		.compatible = "st,lsm6dsm",
56 		.data = (void *)ST_LSM6DSM_ID,
57 	},
58 	{
59 		.compatible = "st,ism330dlc",
60 		.data = (void *)ST_ISM330DLC_ID,
61 	},
62 	{
63 		.compatible = "st,lsm6dso",
64 		.data = (void *)ST_LSM6DSO_ID,
65 	},
66 	{
67 		.compatible = "st,asm330lhh",
68 		.data = (void *)ST_ASM330LHH_ID,
69 	},
70 	{
71 		.compatible = "st,lsm6dsox",
72 		.data = (void *)ST_LSM6DSOX_ID,
73 	},
74 	{
75 		.compatible = "st,lsm6dsr",
76 		.data = (void *)ST_LSM6DSR_ID,
77 	},
78 	{
79 		.compatible = "st,lsm6ds3tr-c",
80 		.data = (void *)ST_LSM6DS3TRC_ID,
81 	},
82 	{
83 		.compatible = "st,ism330dhcx",
84 		.data = (void *)ST_ISM330DHCX_ID,
85 	},
86 	{
87 		.compatible = "st,lsm9ds1-imu",
88 		.data = (void *)ST_LSM9DS1_ID,
89 	},
90 	{
91 		.compatible = "st,lsm6ds0",
92 		.data = (void *)ST_LSM6DS0_ID,
93 	},
94 	{
95 		.compatible = "st,lsm6dsrx",
96 		.data = (void *)ST_LSM6DSRX_ID,
97 	},
98 	{},
99 };
100 MODULE_DEVICE_TABLE(of, st_lsm6dsx_spi_of_match);
101 
102 static const struct spi_device_id st_lsm6dsx_spi_id_table[] = {
103 	{ ST_LSM6DS3_DEV_NAME, ST_LSM6DS3_ID },
104 	{ ST_LSM6DS3H_DEV_NAME, ST_LSM6DS3H_ID },
105 	{ ST_LSM6DSL_DEV_NAME, ST_LSM6DSL_ID },
106 	{ ST_LSM6DSM_DEV_NAME, ST_LSM6DSM_ID },
107 	{ ST_ISM330DLC_DEV_NAME, ST_ISM330DLC_ID },
108 	{ ST_LSM6DSO_DEV_NAME, ST_LSM6DSO_ID },
109 	{ ST_ASM330LHH_DEV_NAME, ST_ASM330LHH_ID },
110 	{ ST_LSM6DSOX_DEV_NAME, ST_LSM6DSOX_ID },
111 	{ ST_LSM6DSR_DEV_NAME, ST_LSM6DSR_ID },
112 	{ ST_LSM6DS3TRC_DEV_NAME, ST_LSM6DS3TRC_ID },
113 	{ ST_ISM330DHCX_DEV_NAME, ST_ISM330DHCX_ID },
114 	{ ST_LSM9DS1_DEV_NAME, ST_LSM9DS1_ID },
115 	{ ST_LSM6DS0_DEV_NAME, ST_LSM6DS0_ID },
116 	{ ST_LSM6DSRX_DEV_NAME, ST_LSM6DSRX_ID },
117 	{},
118 };
119 MODULE_DEVICE_TABLE(spi, st_lsm6dsx_spi_id_table);
120 
121 static struct spi_driver st_lsm6dsx_driver = {
122 	.driver = {
123 		.name = "st_lsm6dsx_spi",
124 		.pm = &st_lsm6dsx_pm_ops,
125 		.of_match_table = of_match_ptr(st_lsm6dsx_spi_of_match),
126 	},
127 	.probe = st_lsm6dsx_spi_probe,
128 	.id_table = st_lsm6dsx_spi_id_table,
129 };
130 module_spi_driver(st_lsm6dsx_driver);
131 
132 MODULE_AUTHOR("Lorenzo Bianconi <lorenzo.bianconi@st.com>");
133 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
134 MODULE_DESCRIPTION("STMicroelectronics st_lsm6dsx spi driver");
135 MODULE_LICENSE("GPL v2");
136