sound/soc/codecs/tlv320aic32x4-spi.c

   1 /*
   2  * linux/sound/soc/codecs/tlv320aic32x4-spi.c
   3  *
   4  * Copyright 2011 NW Digital Radio
   5  *
   6  * Author: Jeremy McDermond <nh6z@nh6z.net>
   7  *
   8  * Based on sound/soc/codecs/wm8974 and TI driver for kernel 2.6.27.
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License as published by
  12  * the Free Software Foundation; either version 2 of the License, or
  13  * (at your option) any later version.
  14  *
  15  * This program is distributed in the hope that it will be useful,
  16  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  17  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  18  * GNU General Public License for more details.
  19  */
  20
  21 #include <linux/spi/spi.h>
  22 #include <linux/module.h>
  23 #include <linux/of.h>
  24 #include <linux/regmap.h>
  25 #include <sound/soc.h>
  26
  27 #include "tlv320aic32x4.h"
  28
  29 static int aic32x4_spi_probe(struct spi_device *spi)
  30 {
  31         struct regmap *regmap;
  32         struct regmap_config config;
  33
  34         config = aic32x4_regmap_config;
  35         config.reg_bits = 7;
  36         config.pad_bits = 1;
  37         config.val_bits = 8;
  38         config.read_flag_mask = 0x01;
  39
  40         regmap = devm_regmap_init_spi(spi, &config);
  41         return aic32x4_probe(&spi->dev, regmap);
  42 }
  43
  44 static int aic32x4_spi_remove(struct spi_device *spi)
  45 {
  46         return aic32x4_remove(&spi->dev);
  47 }
  48
  49 static const struct spi_device_id aic32x4_spi_id[] = {
  50         { "tlv320aic32x4", 0 },
  51         { /* sentinel */ }
  52 };
  53 MODULE_DEVICE_TABLE(spi, aic32x4_spi_id);
  54
  55 static const struct of_device_id aic32x4_of_id[] = {
  56         { .compatible = "ti,tlv320aic32x4", },
  57         { /* senitel */ }
  58 };
  59 MODULE_DEVICE_TABLE(of, aic32x4_of_id);
  60
  61 static struct spi_driver aic32x4_spi_driver = {
  62         .driver = {
  63                 .name = "tlv320aic32x4",
  64                 .owner = THIS_MODULE,
  65                 .of_match_table = aic32x4_of_id,
  66         },
  67         .probe =    aic32x4_spi_probe,
  68         .remove =   aic32x4_spi_remove,
  69         .id_table = aic32x4_spi_id,
  70 };
  71
  72 module_spi_driver(aic32x4_spi_driver);
  73
  74 MODULE_DESCRIPTION("ASoC TLV320AIC32x4 codec driver SPI");
  75 MODULE_AUTHOR("Jeremy McDermond <nh6z@nh6z.net>");
  76 MODULE_LICENSE("GPL");