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