drivers/iio/accel/bmc150-accel-spi.c

   1 /*
   2  * 3-axis accelerometer driver supporting SPI Bosch-Sensortec accelerometer chip
   3  * Copyright © 2015 Pengutronix, Markus Pargmann <mpa@pengutronix.de>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, see <http://www.gnu.org/licenses/>.
  17  */
  18
  19 #include <linux/device.h>
  20 #include <linux/mod_devicetable.h>
  21 #include <linux/module.h>
  22 #include <linux/acpi.h>
  23 #include <linux/regmap.h>
  24 #include <linux/spi/spi.h>
  25
  26 #include "bmc150-accel.h"
  27
  28 static int bmc150_accel_probe(struct spi_device *spi)
  29 {
  30         struct regmap *regmap;
  31         const struct spi_device_id *id = spi_get_device_id(spi);
  32
  33         regmap = devm_regmap_init_spi(spi, &bmc150_regmap_conf);
  34         if (IS_ERR(regmap)) {
  35                 dev_err(&spi->dev, "Failed to initialize spi regmap\n");
  36                 return PTR_ERR(regmap);
  37         }
  38
  39         return bmc150_accel_core_probe(&spi->dev, regmap, spi->irq, id->name,
  40                                        true);
  41 }
  42
  43 static int bmc150_accel_remove(struct spi_device *spi)
  44 {
  45         return bmc150_accel_core_remove(&spi->dev);
  46 }
  47
  48 static const struct acpi_device_id bmc150_accel_acpi_match[] = {
  49         {"BSBA0150",    bmc150},
  50         {"BMC150A",     bmc150},
  51         {"BMI055A",     bmi055},
  52         {"BMA0255",     bma255},
  53         {"BMA250E",     bma250e},
  54         {"BMA222E",     bma222e},
  55         {"BMA0280",     bma280},
  56         { },
  57 };
  58 MODULE_DEVICE_TABLE(acpi, bmc150_accel_acpi_match);
  59
  60 static const struct spi_device_id bmc150_accel_id[] = {
  61         {"bmc150_accel",        bmc150},
  62         {"bmi055_accel",        bmi055},
  63         {"bma255",              bma255},
  64         {"bma250e",             bma250e},
  65         {"bma222e",             bma222e},
  66         {"bma280",              bma280},
  67         {}
  68 };
  69 MODULE_DEVICE_TABLE(spi, bmc150_accel_id);
  70
  71 static struct spi_driver bmc150_accel_driver = {
  72         .driver = {
  73                 .name   = "bmc150_accel_spi",
  74                 .acpi_match_table = ACPI_PTR(bmc150_accel_acpi_match),
  75                 .pm     = &bmc150_accel_pm_ops,
  76         },
  77         .probe          = bmc150_accel_probe,
  78         .remove         = bmc150_accel_remove,
  79         .id_table       = bmc150_accel_id,
  80 };
  81 module_spi_driver(bmc150_accel_driver);
  82
  83 MODULE_AUTHOR("Markus Pargmann <mpa@pengutronix.de>");
  84 MODULE_LICENSE("GPL v2");
  85 MODULE_DESCRIPTION("BMC150 SPI accelerometer driver");