sound/soc/codecs/cs4271-i2c.c

   1 /*
   2  * CS4271 I2C audio driver
   3  *
   4  * Copyright (c) 2010 Alexander Sverdlin <subaparts@yandex.ru>
   5  *
   6  * This program is free software; you can redistribute it and/or
   7  * modify it under the terms of the GNU General Public License
   8  * as published by the Free Software Foundation; either version 2
   9  * of the License, or (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  */
  16
  17 #include <linux/module.h>
  18 #include <linux/i2c.h>
  19 #include <linux/regmap.h>
  20 #include <sound/soc.h>
  21 #include "cs4271.h"
  22
  23 static int cs4271_i2c_probe(struct i2c_client *client,
  24                              const struct i2c_device_id *id)
  25 {
  26         struct regmap_config config;
  27
  28         config = cs4271_regmap_config;
  29         config.reg_bits = 8;
  30         config.val_bits = 8;
  31
  32         return cs4271_probe(&client->dev,
  33                             devm_regmap_init_i2c(client, &config));
  34 }
  35
  36 static int cs4271_i2c_remove(struct i2c_client *client)
  37 {
  38         snd_soc_unregister_codec(&client->dev);
  39         return 0;
  40 }
  41
  42 static const struct i2c_device_id cs4271_i2c_id[] = {
  43         { "cs4271", 0 },
  44         { }
  45 };
  46 MODULE_DEVICE_TABLE(i2c, cs4271_i2c_id);
  47
  48 static struct i2c_driver cs4271_i2c_driver = {
  49         .driver = {
  50                 .name = "cs4271",
  51                 .of_match_table = of_match_ptr(cs4271_dt_ids),
  52         },
  53         .probe = cs4271_i2c_probe,
  54         .remove = cs4271_i2c_remove,
  55         .id_table = cs4271_i2c_id,
  56 };
  57 module_i2c_driver(cs4271_i2c_driver);
  58
  59 MODULE_DESCRIPTION("ASoC CS4271 I2C Driver");
  60 MODULE_AUTHOR("Alexander Sverdlin <subaparts@yandex.ru>");
  61 MODULE_LICENSE("GPL");