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 
21 static 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 = devm_iio_device_alloc(&spi->dev, sizeof(*mdata));
28 	if (!indio_dev)
29 		return -ENOMEM;
30 
31 	mdata = iio_priv(indio_dev);
32 	mdata->dev = &spi->dev;
33 
34 	st_sensors_spi_configure(indio_dev, spi, mdata);
35 
36 	err = st_magn_common_probe(indio_dev, NULL);
37 	if (err < 0)
38 		return err;
39 
40 	return 0;
41 }
42 
43 static int st_magn_spi_remove(struct spi_device *spi)
44 {
45 	struct iio_dev *indio_dev = spi_get_drvdata(spi);
46 	st_magn_common_remove(indio_dev);
47 
48 	return 0;
49 }
50 
51 static const struct spi_device_id st_magn_id_table[] = {
52 	{ LSM303DLHC_MAGN_DEV_NAME },
53 	{ LSM303DLM_MAGN_DEV_NAME },
54 	{ LIS3MDL_MAGN_DEV_NAME },
55 	{},
56 };
57 MODULE_DEVICE_TABLE(spi, st_magn_id_table);
58 
59 static struct spi_driver st_magn_driver = {
60 	.driver = {
61 		.owner = THIS_MODULE,
62 		.name = "st-magn-spi",
63 	},
64 	.probe = st_magn_spi_probe,
65 	.remove = st_magn_spi_remove,
66 	.id_table = st_magn_id_table,
67 };
68 module_spi_driver(st_magn_driver);
69 
70 MODULE_AUTHOR("Denis Ciocca <denis.ciocca@st.com>");
71 MODULE_DESCRIPTION("STMicroelectronics magnetometers spi driver");
72 MODULE_LICENSE("GPL v2");
73