LXR linux/sound/soc/codecs/pcm179x-i2c.c

   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
  26static 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
  42static int pcm179x_i2c_remove(struct i2c_client *client)
  43{
  44        return pcm179x_common_exit(&client->dev);
  45}
  46
  47static const struct of_device_id pcm179x_of_match[] = {
  48        { .compatible = "ti,pcm1792a", },
  49        { }
  50};
  51MODULE_DEVICE_TABLE(of, pcm179x_of_match);
  52
  53static const struct i2c_device_id pcm179x_i2c_ids[] = {
  54        { "pcm179x", 0 },
  55        { }
  56};
  57MODULE_DEVICE_TABLE(i2c, pcm179x_i2c_ids);
  58
  59static struct i2c_driver pcm179x_i2c_driver = {
  60        .driver = {
  61                .name   = "pcm179x",
  62                .of_match_table = of_match_ptr(pcm179x_of_match),
  63        },
  64        .id_table       = pcm179x_i2c_ids,
  65        .probe          = pcm179x_i2c_probe,
  66        .remove         = pcm179x_i2c_remove,
  67};
  68
  69module_i2c_driver(pcm179x_i2c_driver);
  70
  71MODULE_DESCRIPTION("ASoC PCM179X I2C driver");
  72MODULE_AUTHOR("Jacob Siverskog <jacob@teenage.engineering>");
  73MODULE_LICENSE("GPL");
  74