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10#include <linux/kernel.h>
11#include <linux/module.h>
12#include <linux/slab.h>
13#include <linux/spi/spi.h>
14#include <linux/iio/iio.h>
15
16#include <linux/iio/common/st_sensors.h>
17#include <linux/iio/common/st_sensors_spi.h>
18#include "st_magn.h"
19
20#ifdef CONFIG_OF
21
22
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24
25
26
27
28static const struct of_device_id st_magn_of_match[] = {
29 {
30 .compatible = "st,lis3mdl-magn",
31 .data = LIS3MDL_MAGN_DEV_NAME,
32 },
33 {
34 .compatible = "st,lsm303agr-magn",
35 .data = LSM303AGR_MAGN_DEV_NAME,
36 },
37 {
38 .compatible = "st,lis2mdl",
39 .data = LIS2MDL_MAGN_DEV_NAME,
40 },
41 {
42 .compatible = "st,lsm9ds1-magn",
43 .data = LSM9DS1_MAGN_DEV_NAME,
44 },
45 {}
46};
47MODULE_DEVICE_TABLE(of, st_magn_of_match);
48#else
49#define st_magn_of_match NULL
50#endif
51
52static int st_magn_spi_probe(struct spi_device *spi)
53{
54 struct iio_dev *indio_dev;
55 struct st_sensor_data *mdata;
56 int err;
57
58 indio_dev = devm_iio_device_alloc(&spi->dev, sizeof(*mdata));
59 if (!indio_dev)
60 return -ENOMEM;
61
62 mdata = iio_priv(indio_dev);
63
64 st_sensors_of_name_probe(&spi->dev, st_magn_of_match,
65 spi->modalias, sizeof(spi->modalias));
66 st_sensors_spi_configure(indio_dev, spi, mdata);
67
68 err = st_magn_common_probe(indio_dev);
69 if (err < 0)
70 return err;
71
72 return 0;
73}
74
75static int st_magn_spi_remove(struct spi_device *spi)
76{
77 struct iio_dev *indio_dev = spi_get_drvdata(spi);
78 st_magn_common_remove(indio_dev);
79
80 return 0;
81}
82
83static const struct spi_device_id st_magn_id_table[] = {
84 { LIS3MDL_MAGN_DEV_NAME },
85 { LSM303AGR_MAGN_DEV_NAME },
86 { LIS2MDL_MAGN_DEV_NAME },
87 { LSM9DS1_MAGN_DEV_NAME },
88 {},
89};
90MODULE_DEVICE_TABLE(spi, st_magn_id_table);
91
92static struct spi_driver st_magn_driver = {
93 .driver = {
94 .name = "st-magn-spi",
95 .of_match_table = of_match_ptr(st_magn_of_match),
96 },
97 .probe = st_magn_spi_probe,
98 .remove = st_magn_spi_remove,
99 .id_table = st_magn_id_table,
100};
101module_spi_driver(st_magn_driver);
102
103MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
104MODULE_DESCRIPTION("STMicroelectronics magnetometers spi driver");
105MODULE_LICENSE("GPL v2");
106