sound/soc/codecs/pcm179x-spi.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * PCM179X ASoC SPI driver
   4  *
   5  * Copyright (c) Amarula Solutions B.V. 2013
   6  *
   7  *     Michael Trimarchi <michael@amarulasolutions.com>
   8  */
   9
  10 #include <linux/module.h>
  11 #include <linux/of.h>
  12 #include <linux/spi/spi.h>
  13 #include <linux/regmap.h>
  14
  15 #include "pcm179x.h"
  16
  17 static int pcm179x_spi_probe(struct spi_device *spi)
  18 {
  19         struct regmap *regmap;
  20         int ret;
  21
  22         regmap = devm_regmap_init_spi(spi, &pcm179x_regmap_config);
  23         if (IS_ERR(regmap)) {
  24                 ret = PTR_ERR(regmap);
  25                 dev_err(&spi->dev, "Failed to allocate regmap: %d\n", ret);
  26                 return ret;
  27         }
  28
  29         return pcm179x_common_init(&spi->dev, regmap);
  30 }
  31
  32 static const struct of_device_id pcm179x_of_match[] = {
  33         { .compatible = "ti,pcm1792a", },
  34         { }
  35 };
  36 MODULE_DEVICE_TABLE(of, pcm179x_of_match);
  37
  38 static const struct spi_device_id pcm179x_spi_ids[] = {
  39         { "pcm179x", 0 },
  40         { },
  41 };
  42 MODULE_DEVICE_TABLE(spi, pcm179x_spi_ids);
  43
  44 static struct spi_driver pcm179x_spi_driver = {
  45         .driver = {
  46                 .name = "pcm179x",
  47                 .of_match_table = of_match_ptr(pcm179x_of_match),
  48         },
  49         .id_table = pcm179x_spi_ids,
  50         .probe = pcm179x_spi_probe,
  51 };
  52
  53 module_spi_driver(pcm179x_spi_driver);
  54
  55 MODULE_DESCRIPTION("ASoC PCM179X SPI driver");
  56 MODULE_AUTHOR("Michael Trimarchi <michael@amarulasolutions.com>");
  57 MODULE_LICENSE("GPL");