drivers/iio/accel/bmc150-accel-i2c.c

   1 /*
   2  * 3-axis accelerometer driver supporting following I2C Bosch-Sensortec chips:
   3  *  - BMC150
   4  *  - BMI055
   5  *  - BMA255
   6  *  - BMA250E
   7  *  - BMA222E
   8  *  - BMA280
   9  *
  10  * Copyright (c) 2014, Intel Corporation.
  11  *
  12  * This program is free software; you can redistribute it and/or modify it
  13  * under the terms and conditions of the GNU General Public License,
  14  * version 2, as published by the Free Software Foundation.
  15  *
  16  * This program is distributed in the hope it will be useful, but WITHOUT
  17  * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  18  * FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
  19  * more details.
  20  */
  21
  22 #include <linux/device.h>
  23 #include <linux/mod_devicetable.h>
  24 #include <linux/i2c.h>
  25 #include <linux/module.h>
  26 #include <linux/acpi.h>
  27 #include <linux/regmap.h>
  28
  29 #include "bmc150-accel.h"
  30
  31 static int bmc150_accel_probe(struct i2c_client *client,
  32                               const struct i2c_device_id *id)
  33 {
  34         struct regmap *regmap;
  35         const char *name = NULL;
  36         bool block_supported =
  37                 i2c_check_functionality(client->adapter, I2C_FUNC_I2C) ||
  38                 i2c_check_functionality(client->adapter,
  39                                         I2C_FUNC_SMBUS_READ_I2C_BLOCK);
  40
  41         regmap = devm_regmap_init_i2c(client, &bmc150_regmap_conf);
  42         if (IS_ERR(regmap)) {
  43                 dev_err(&client->dev, "Failed to initialize i2c regmap\n");
  44                 return PTR_ERR(regmap);
  45         }
  46
  47         if (id)
  48                 name = id->name;
  49
  50         return bmc150_accel_core_probe(&client->dev, regmap, client->irq, name,
  51                                        block_supported);
  52 }
  53
  54 static int bmc150_accel_remove(struct i2c_client *client)
  55 {
  56         return bmc150_accel_core_remove(&client->dev);
  57 }
  58
  59 static const struct acpi_device_id bmc150_accel_acpi_match[] = {
  60         {"BSBA0150",    bmc150},
  61         {"BMC150A",     bmc150},
  62         {"BMI055A",     bmi055},
  63         {"BMA0255",     bma255},
  64         {"BMA250E",     bma250e},
  65         {"BMA222E",     bma222e},
  66         {"BMA0280",     bma280},
  67         { },
  68 };
  69 MODULE_DEVICE_TABLE(acpi, bmc150_accel_acpi_match);
  70
  71 static const struct i2c_device_id bmc150_accel_id[] = {
  72         {"bmc150_accel",        bmc150},
  73         {"bmi055_accel",        bmi055},
  74         {"bma255",              bma255},
  75         {"bma250e",             bma250e},
  76         {"bma222e",             bma222e},
  77         {"bma280",              bma280},
  78         {}
  79 };
  80
  81 MODULE_DEVICE_TABLE(i2c, bmc150_accel_id);
  82
  83 static struct i2c_driver bmc150_accel_driver = {
  84         .driver = {
  85                 .name   = "bmc150_accel_i2c",
  86                 .acpi_match_table = ACPI_PTR(bmc150_accel_acpi_match),
  87                 .pm     = &bmc150_accel_pm_ops,
  88         },
  89         .probe          = bmc150_accel_probe,
  90         .remove         = bmc150_accel_remove,
  91         .id_table       = bmc150_accel_id,
  92 };
  93 module_i2c_driver(bmc150_accel_driver);
  94
  95 MODULE_AUTHOR("Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>");
  96 MODULE_LICENSE("GPL v2");
  97 MODULE_DESCRIPTION("BMC150 I2C accelerometer driver");