LXR linux/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
  29static 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
  44static int aic32x4_spi_remove(struct spi_device *spi)
  45{
  46        return aic32x4_remove(&spi->dev);
  47}
  48
  49static const struct spi_device_id aic32x4_spi_id[] = {
  50        { "tlv320aic32x4", 0 },
  51        { /* sentinel */ }
  52};
  53MODULE_DEVICE_TABLE(spi, aic32x4_spi_id);
  54
  55static const struct of_device_id aic32x4_of_id[] = {
  56        { .compatible = "ti,tlv320aic32x4", },
  57        { /* senitel */ }
  58};
  59MODULE_DEVICE_TABLE(of, aic32x4_of_id);
  60
  61static 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
  72module_spi_driver(aic32x4_spi_driver);
  73
  74MODULE_DESCRIPTION("ASoC TLV320AIC32x4 codec driver SPI");
  75MODULE_AUTHOR("Jeremy McDermond <nh6z@nh6z.net>");
  76MODULE_LICENSE("GPL");
  77