drivers/iio/magnetometer/bmc150_magn_spi.c

   1 /*
   2  * 3-axis magnetometer driver support following SPI Bosch-Sensortec chips:
   3  *  - BMC150
   4  *  - BMC156
   5  *  - BMM150
   6  *
   7  * Copyright (c) 2016, Intel Corporation.
   8  *
   9  * This file is subject to the terms and conditions of version 2 of
  10  * the GNU General Public License.  See the file COPYING in the main
  11  * directory of this archive for more details.
  12  */
  13 #include <linux/module.h>
  14 #include <linux/mod_devicetable.h>
  15 #include <linux/spi/spi.h>
  16 #include <linux/acpi.h>
  17 #include <linux/regmap.h>
  18
  19 #include "bmc150_magn.h"
  20
  21 static int bmc150_magn_spi_probe(struct spi_device *spi)
  22 {
  23         struct regmap *regmap;
  24         const struct spi_device_id *id = spi_get_device_id(spi);
  25
  26         regmap = devm_regmap_init_spi(spi, &bmc150_magn_regmap_config);
  27         if (IS_ERR(regmap)) {
  28                 dev_err(&spi->dev, "Failed to register spi regmap %d\n",
  29                         (int)PTR_ERR(regmap));
  30                 return PTR_ERR(regmap);
  31         }
  32         return bmc150_magn_probe(&spi->dev, regmap, spi->irq, id->name);
  33 }
  34
  35 static int bmc150_magn_spi_remove(struct spi_device *spi)
  36 {
  37         bmc150_magn_remove(&spi->dev);
  38
  39         return 0;
  40 }
  41
  42 static const struct spi_device_id bmc150_magn_spi_id[] = {
  43         {"bmc150_magn", 0},
  44         {"bmc156_magn", 0},
  45         {"bmm150_magn", 0},
  46         {}
  47 };
  48 MODULE_DEVICE_TABLE(spi, bmc150_magn_spi_id);
  49
  50 static const struct acpi_device_id bmc150_magn_acpi_match[] = {
  51         {"BMC150B", 0},
  52         {"BMC156B", 0},
  53         {"BMM150B", 0},
  54         {},
  55 };
  56 MODULE_DEVICE_TABLE(acpi, bmc150_magn_acpi_match);
  57
  58 static struct spi_driver bmc150_magn_spi_driver = {
  59         .probe          = bmc150_magn_spi_probe,
  60         .remove         = bmc150_magn_spi_remove,
  61         .id_table       = bmc150_magn_spi_id,
  62         .driver = {
  63                 .acpi_match_table = ACPI_PTR(bmc150_magn_acpi_match),
  64                 .name   = "bmc150_magn_spi",
  65         },
  66 };
  67 module_spi_driver(bmc150_magn_spi_driver);
  68
  69 MODULE_AUTHOR("Daniel Baluta <daniel.baluta@intel.com");
  70 MODULE_DESCRIPTION("BMC150 magnetometer SPI driver");
  71 MODULE_LICENSE("GPL v2");