drivers/net/ethernet/mellanox/mlxsw/minimal.c

   1 /*
   2  * drivers/net/ethernet/mellanox/mlxsw/minimal.c
   3  * Copyright (c) 2016 Mellanox Technologies. All rights reserved.
   4  * Copyright (c) 2016 Vadim Pasternak <vadimp@mellanox.com>
   5  *
   6  * Redistribution and use in source and binary forms, with or without
   7  * modification, are permitted provided that the following conditions are met:
   8  *
   9  * 1. Redistributions of source code must retain the above copyright
  10  *    notice, this list of conditions and the following disclaimer.
  11  * 2. Redistributions in binary form must reproduce the above copyright
  12  *    notice, this list of conditions and the following disclaimer in the
  13  *    documentation and/or other materials provided with the distribution.
  14  * 3. Neither the names of the copyright holders nor the names of its
  15  *    contributors may be used to endorse or promote products derived from
  16  *    this software without specific prior written permission.
  17  *
  18  * Alternatively, this software may be distributed under the terms of the
  19  * GNU General Public License ("GPL") version 2 as published by the Free
  20  * Software Foundation.
  21  *
  22  * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
  23  * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
  24  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
  25  * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
  26  * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  27  * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
  28  * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
  29  * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
  30  * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
  31  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
  32  * POSSIBILITY OF SUCH DAMAGE.
  33  */
  34
  35 #include <linux/i2c.h>
  36 #include <linux/kernel.h>
  37 #include <linux/module.h>
  38 #include <linux/mod_devicetable.h>
  39 #include <linux/types.h>
  40
  41 #include "core.h"
  42 #include "i2c.h"
  43
  44 static const char mlxsw_minimal_driver_name[] = "mlxsw_minimal";
  45
  46 static const struct mlxsw_config_profile mlxsw_minimal_config_profile;
  47
  48 static struct mlxsw_driver mlxsw_minimal_driver = {
  49         .kind           = mlxsw_minimal_driver_name,
  50         .priv_size      = 1,
  51         .profile        = &mlxsw_minimal_config_profile,
  52 };
  53
  54 static const struct i2c_device_id mlxsw_minimal_i2c_id[] = {
  55         { "mlxsw_minimal", 0},
  56         { },
  57 };
  58
  59 static struct i2c_driver mlxsw_minimal_i2c_driver = {
  60         .driver.name = "mlxsw_minimal",
  61         .class = I2C_CLASS_HWMON,
  62         .id_table = mlxsw_minimal_i2c_id,
  63 };
  64
  65 static int __init mlxsw_minimal_module_init(void)
  66 {
  67         int err;
  68
  69         err = mlxsw_core_driver_register(&mlxsw_minimal_driver);
  70         if (err)
  71                 return err;
  72
  73         err = mlxsw_i2c_driver_register(&mlxsw_minimal_i2c_driver);
  74         if (err)
  75                 goto err_i2c_driver_register;
  76
  77         return 0;
  78
  79 err_i2c_driver_register:
  80         mlxsw_core_driver_unregister(&mlxsw_minimal_driver);
  81
  82         return err;
  83 }
  84
  85 static void __exit mlxsw_minimal_module_exit(void)
  86 {
  87         mlxsw_i2c_driver_unregister(&mlxsw_minimal_i2c_driver);
  88         mlxsw_core_driver_unregister(&mlxsw_minimal_driver);
  89 }
  90
  91 module_init(mlxsw_minimal_module_init);
  92 module_exit(mlxsw_minimal_module_exit);
  93
  94 MODULE_LICENSE("Dual BSD/GPL");
  95 MODULE_AUTHOR("Vadim Pasternak <vadimp@mellanox.com>");
  96 MODULE_DESCRIPTION("Mellanox minimal driver");
  97 MODULE_DEVICE_TABLE(i2c, mlxsw_minimal_i2c_id);