drivers/iio/magnetometer/bmc150_magn_spi.c

   1 /*
   2  * 3-axis magnetometer driver support following SPI Bosch-Sensortec chips:
   3  *  - BMC150
   4  *  - BMC156
   5  *
   6  * Copyright (c) 2016, Intel Corporation.
   7  *
   8  * This file is subject to the terms and conditions of version 2 of
   9  * the GNU General Public License.  See the file COPYING in the main
  10  * directory of this archive for more details.
  11  */
  12 #include <linux/module.h>
  13 #include <linux/mod_devicetable.h>
  14 #include <linux/spi/spi.h>
  15 #include <linux/acpi.h>
  16 #include <linux/regmap.h>
  17
  18 #include "bmc150_magn.h"
  19
  20 static int bmc150_magn_spi_probe(struct spi_device *spi)
  21 {
  22         struct regmap *regmap;
  23         const struct spi_device_id *id = spi_get_device_id(spi);
  24
  25         regmap = devm_regmap_init_spi(spi, &bmc150_magn_regmap_config);
  26         if (IS_ERR(regmap)) {
  27                 dev_err(&spi->dev, "Failed to register spi regmap %d\n",
  28                         (int)PTR_ERR(regmap));
  29                 return PTR_ERR(regmap);
  30         }
  31         return bmc150_magn_probe(&spi->dev, regmap, spi->irq, id->name);
  32 }
  33
  34 static int bmc150_magn_spi_remove(struct spi_device *spi)
  35 {
  36         bmc150_magn_remove(&spi->dev);
  37
  38         return 0;
  39 }
  40
  41 static const struct spi_device_id bmc150_magn_spi_id[] = {
  42         {"bmc150_magn", 0},
  43         {"bmc156_magn", 0},
  44         {}
  45 };
  46 MODULE_DEVICE_TABLE(spi, bmc150_magn_spi_id);
  47
  48 static const struct acpi_device_id bmc150_magn_acpi_match[] = {
  49         {"BMC150B", 0},
  50         {"BMC156B", 0},
  51         {},
  52 };
  53 MODULE_DEVICE_TABLE(acpi, bmc150_magn_acpi_match);
  54
  55 static struct spi_driver bmc150_magn_spi_driver = {
  56         .probe          = bmc150_magn_spi_probe,
  57         .remove         = bmc150_magn_spi_remove,
  58         .id_table       = bmc150_magn_spi_id,
  59         .driver = {
  60                 .acpi_match_table = ACPI_PTR(bmc150_magn_acpi_match),
  61                 .name   = "bmc150_magn_spi",
  62         },
  63 };
  64 module_spi_driver(bmc150_magn_spi_driver);
  65
  66 MODULE_AUTHOR("Daniel Baluta <daniel.baluta@intel.com");
  67 MODULE_DESCRIPTION("BMC150 magnetometer SPI driver");
  68 MODULE_LICENSE("GPL v2");