1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* STMicroelectronics LSM9DS0 IMU driver
*
* Copyright (C) 2021, Intel Corporation
*
* Author: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
*/
#include <linux/device.h>
#include <linux/err.h>
#include <linux/gfp_types.h>
#include <linux/module.h>
#include <linux/mod_devicetable.h>
#include <linux/regmap.h>
#include <linux/spi/spi.h>
#include <linux/iio/common/st_sensors_spi.h>
#include "st_lsm9ds0.h"
static const struct of_device_id st_lsm9ds0_of_match[] = {
{
.compatible = "st,lsm303d-imu",
.data = LSM303D_IMU_DEV_NAME,
},
{
.compatible = "st,lsm9ds0-imu",
.data = LSM9DS0_IMU_DEV_NAME,
},
{}
};
MODULE_DEVICE_TABLE(of, st_lsm9ds0_of_match);
static const struct spi_device_id st_lsm9ds0_id_table[] = {
{ LSM303D_IMU_DEV_NAME },
{ LSM9DS0_IMU_DEV_NAME },
{}
};
MODULE_DEVICE_TABLE(spi, st_lsm9ds0_id_table);
static const struct regmap_config st_lsm9ds0_regmap_config = {
.reg_bits = 8,
.val_bits = 8,
.read_flag_mask = 0xc0,
};
static int st_lsm9ds0_spi_probe(struct spi_device *spi)
{
struct device *dev = &spi->dev;
struct st_lsm9ds0 *lsm9ds0;
struct regmap *regmap;
st_sensors_dev_name_probe(dev, spi->modalias, sizeof(spi->modalias));
lsm9ds0 = devm_kzalloc(dev, sizeof(*lsm9ds0), GFP_KERNEL);
if (!lsm9ds0)
return -ENOMEM;
lsm9ds0->dev = dev;
lsm9ds0->name = spi->modalias;
lsm9ds0->irq = spi->irq;
regmap = devm_regmap_init_spi(spi, &st_lsm9ds0_regmap_config);
if (IS_ERR(regmap))
return PTR_ERR(regmap);
spi_set_drvdata(spi, lsm9ds0);
return st_lsm9ds0_probe(lsm9ds0, regmap);
}
static struct spi_driver st_lsm9ds0_driver = {
.driver = {
.name = "st-lsm9ds0-spi",
.of_match_table = st_lsm9ds0_of_match,
},
.probe = st_lsm9ds0_spi_probe,
.id_table = st_lsm9ds0_id_table,
};
module_spi_driver(st_lsm9ds0_driver);
MODULE_AUTHOR("Andy Shevchenko <andriy.shevchenko@linux.intel.com>");
MODULE_DESCRIPTION("STMicroelectronics LSM9DS0 IMU SPI driver");
MODULE_LICENSE("GPL v2");
MODULE_IMPORT_NS("IIO_ST_SENSORS");
|
