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Linux/sound/soc/codecs/cs4271-spi.c

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  1 /*
  2  * CS4271 SPI 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/spi/spi.h>
 19 #include <linux/regmap.h>
 20 #include <sound/soc.h>
 21 #include "cs4271.h"
 22 
 23 static int cs4271_spi_probe(struct spi_device *spi)
 24 {
 25         struct regmap_config config;
 26 
 27         config = cs4271_regmap_config;
 28         config.reg_bits = 16;
 29         config.val_bits = 8;
 30         config.read_flag_mask = 0x21;
 31         config.write_flag_mask = 0x20;
 32 
 33         return cs4271_probe(&spi->dev, devm_regmap_init_spi(spi, &config));
 34 }
 35 
 36 static int cs4271_spi_remove(struct spi_device *spi)
 37 {
 38         snd_soc_unregister_codec(&spi->dev);
 39         return 0;
 40 }
 41 
 42 static struct spi_driver cs4271_spi_driver = {
 43         .driver = {
 44                 .name   = "cs4271",
 45                 .of_match_table = of_match_ptr(cs4271_dt_ids),
 46         },
 47         .probe          = cs4271_spi_probe,
 48         .remove         = cs4271_spi_remove,
 49 };
 50 module_spi_driver(cs4271_spi_driver);
 51 
 52 MODULE_DESCRIPTION("ASoC CS4271 SPI Driver");
 53 MODULE_AUTHOR("Alexander Sverdlin <subaparts@yandex.ru>");
 54 MODULE_LICENSE("GPL");
 55 

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