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Linux/sound/soc/codecs/pcm179x-i2c.c

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  1 /*
  2  * PCM179X ASoC I2C driver
  3  *
  4  * Copyright (c) Teenage Engineering AB 2016
  5  *
  6  *     Jacob Siverskog <jacob@teenage.engineering>
  7  *
  8  * This program is free software; you can redistribute it and/or
  9  * modify it under the terms of the GNU General Public License
 10  * as published by the Free Software Foundation; either version 2
 11  * of the License, or (at your option) any later version.
 12  *
 13  * This program is distributed in the hope that it will be useful,
 14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
 15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 16  * GNU General Public License for more details.
 17  */
 18 
 19 #include <linux/module.h>
 20 #include <linux/of.h>
 21 #include <linux/i2c.h>
 22 #include <linux/regmap.h>
 23 
 24 #include "pcm179x.h"
 25 
 26 static int pcm179x_i2c_probe(struct i2c_client *client,
 27                               const struct i2c_device_id *id)
 28 {
 29         struct regmap *regmap;
 30         int ret;
 31 
 32         regmap = devm_regmap_init_i2c(client, &pcm179x_regmap_config);
 33         if (IS_ERR(regmap)) {
 34                 ret = PTR_ERR(regmap);
 35                 dev_err(&client->dev, "Failed to allocate regmap: %d\n", ret);
 36                 return ret;
 37         }
 38 
 39         return pcm179x_common_init(&client->dev, regmap);
 40 }
 41 
 42 static const struct of_device_id pcm179x_of_match[] = {
 43         { .compatible = "ti,pcm1792a", },
 44         { }
 45 };
 46 MODULE_DEVICE_TABLE(of, pcm179x_of_match);
 47 
 48 static const struct i2c_device_id pcm179x_i2c_ids[] = {
 49         { "pcm179x", 0 },
 50         { }
 51 };
 52 MODULE_DEVICE_TABLE(i2c, pcm179x_i2c_ids);
 53 
 54 static struct i2c_driver pcm179x_i2c_driver = {
 55         .driver = {
 56                 .name   = "pcm179x",
 57                 .of_match_table = of_match_ptr(pcm179x_of_match),
 58         },
 59         .id_table       = pcm179x_i2c_ids,
 60         .probe          = pcm179x_i2c_probe,
 61 };
 62 
 63 module_i2c_driver(pcm179x_i2c_driver);
 64 
 65 MODULE_DESCRIPTION("ASoC PCM179X I2C driver");
 66 MODULE_AUTHOR("Jacob Siverskog <jacob@teenage.engineering>");
 67 MODULE_LICENSE("GPL");
 68 

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