sound/soc/codecs/ad193x-spi.c

   1 /*
   2  * AD1938/AD1939 audio driver
   3  *
   4  * Copyright 2014 Analog Devices Inc.
   5  *
   6  * Licensed under the GPL-2.
   7  */
   8
   9 #include <linux/module.h>
  10 #include <linux/spi/spi.h>
  11 #include <linux/regmap.h>
  12
  13 #include <sound/soc.h>
  14
  15 #include "ad193x.h"
  16
  17 static int ad193x_spi_probe(struct spi_device *spi)
  18 {
  19         struct regmap_config config;
  20
  21         config = ad193x_regmap_config;
  22         config.val_bits = 8;
  23         config.reg_bits = 16;
  24         config.read_flag_mask = 0x09;
  25         config.write_flag_mask = 0x08;
  26
  27         return ad193x_probe(&spi->dev, devm_regmap_init_spi(spi, &config));
  28 }
  29
  30 static int ad193x_spi_remove(struct spi_device *spi)
  31 {
  32         snd_soc_unregister_codec(&spi->dev);
  33         return 0;
  34 }
  35
  36 static struct spi_driver ad193x_spi_driver = {
  37         .driver = {
  38                 .name   = "ad193x",
  39                 .owner  = THIS_MODULE,
  40         },
  41         .probe          = ad193x_spi_probe,
  42         .remove         = ad193x_spi_remove,
  43 };
  44 module_spi_driver(ad193x_spi_driver);
  45
  46 MODULE_DESCRIPTION("ASoC AD1938/AD1939 audio CODEC driver");
  47 MODULE_AUTHOR("Barry Song <21cnbao@gmail.com>");
  48 MODULE_LICENSE("GPL");