tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
1/*
2 * STMicroelectronics magnetometers driver
3 *
4 * Copyright 2012-2013 STMicroelectronics Inc.
5 *
6 * Denis Ciocca <denis.ciocca@st.com>
7 *
8 * Licensed under the GPL-2.
9 */
10
11#include <linux/kernel.h>
12#include <linux/module.h>
13#include <linux/slab.h>
14#include <linux/spi/spi.h>
15#include <linux/iio/iio.h>
16
17#include <linux/iio/common/st_sensors.h>
18#include <linux/iio/common/st_sensors_spi.h>
19#include "st_magn.h"
20
21static int st_magn_spi_probe(struct spi_device *spi)
22{
23 struct iio_dev *indio_dev;
24 struct st_sensor_data *mdata;
25 int err;
26
27 indio_dev = iio_device_alloc(sizeof(*mdata));
28 if (indio_dev == NULL) {
29 err = -ENOMEM;
30 goto iio_device_alloc_error;
31 }
32
33 mdata = iio_priv(indio_dev);
34 mdata->dev = &spi->dev;
35
36 st_sensors_spi_configure(indio_dev, spi, mdata);
37
38 err = st_magn_common_probe(indio_dev);
39 if (err < 0)
40 goto st_magn_common_probe_error;
41
42 return 0;
43
44st_magn_common_probe_error:
45 iio_device_free(indio_dev);
46iio_device_alloc_error:
47 return err;
48}
49
50static int st_magn_spi_remove(struct spi_device *spi)
51{
52 struct iio_dev *indio_dev = spi_get_drvdata(spi);
53 st_magn_common_remove(indio_dev);
54
55 return 0;
56}
57
58static const struct spi_device_id st_magn_id_table[] = {
59 { LSM303DLHC_MAGN_DEV_NAME },
60 { LSM303DLM_MAGN_DEV_NAME },
61 { LIS3MDL_MAGN_DEV_NAME },
62 {},
63};
64MODULE_DEVICE_TABLE(spi, st_magn_id_table);
65
66static struct spi_driver st_magn_driver = {
67 .driver = {
68 .owner = THIS_MODULE,
69 .name = "st-magn-spi",
70 },
71 .probe = st_magn_spi_probe,
72 .remove = st_magn_spi_remove,
73 .id_table = st_magn_id_table,
74};
75module_spi_driver(st_magn_driver);
76
77MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
78MODULE_DESCRIPTION("STMicroelectronics magnetometers spi driver");
79MODULE_LICENSE("GPL v2");