sound/soc/codecs/ad73311.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * ad73311.c  --  ALSA Soc AD73311 codec support
   4  *
   5  * Copyright:   Analog Devices Inc.
   6  * Author:      Cliff Cai <cliff.cai@analog.com>
   7  */
   8
   9 #include <linux/init.h>
  10 #include <linux/slab.h>
  11 #include <linux/module.h>
  12 #include <linux/kernel.h>
  13 #include <linux/device.h>
  14 #include <sound/core.h>
  15 #include <sound/pcm.h>
  16 #include <sound/ac97_codec.h>
  17 #include <sound/initval.h>
  18 #include <sound/soc.h>
  19
  20 #include "ad73311.h"
  21
  22 static const struct snd_soc_dapm_widget ad73311_dapm_widgets[] = {
  23 SND_SOC_DAPM_INPUT("VINP"),
  24 SND_SOC_DAPM_INPUT("VINN"),
  25 SND_SOC_DAPM_OUTPUT("VOUTN"),
  26 SND_SOC_DAPM_OUTPUT("VOUTP"),
  27 };
  28
  29 static const struct snd_soc_dapm_route ad73311_dapm_routes[] = {
  30         { "Capture", NULL, "VINP" },
  31         { "Capture", NULL, "VINN" },
  32
  33         { "VOUTN", NULL, "Playback" },
  34         { "VOUTP", NULL, "Playback" },
  35 };
  36
  37 static struct snd_soc_dai_driver ad73311_dai = {
  38         .name = "ad73311-hifi",
  39         .playback = {
  40                 .stream_name = "Playback",
  41                 .channels_min = 1,
  42                 .channels_max = 1,
  43                 .rates = SNDRV_PCM_RATE_8000,
  44                 .formats = SNDRV_PCM_FMTBIT_S16_LE, },
  45         .capture = {
  46                 .stream_name = "Capture",
  47                 .channels_min = 1,
  48                 .channels_max = 1,
  49                 .rates = SNDRV_PCM_RATE_8000,
  50                 .formats = SNDRV_PCM_FMTBIT_S16_LE, },
  51 };
  52
  53 static const struct snd_soc_component_driver soc_component_dev_ad73311 = {
  54         .dapm_widgets           = ad73311_dapm_widgets,
  55         .num_dapm_widgets       = ARRAY_SIZE(ad73311_dapm_widgets),
  56         .dapm_routes            = ad73311_dapm_routes,
  57         .num_dapm_routes        = ARRAY_SIZE(ad73311_dapm_routes),
  58         .idle_bias_on           = 1,
  59         .use_pmdown_time        = 1,
  60         .endianness             = 1,
  61         .non_legacy_dai_naming  = 1,
  62 };
  63
  64 static int ad73311_probe(struct platform_device *pdev)
  65 {
  66         return devm_snd_soc_register_component(&pdev->dev,
  67                         &soc_component_dev_ad73311, &ad73311_dai, 1);
  68 }
  69
  70 static struct platform_driver ad73311_codec_driver = {
  71         .driver = {
  72                         .name = "ad73311",
  73         },
  74
  75         .probe = ad73311_probe,
  76 };
  77
  78 module_platform_driver(ad73311_codec_driver);
  79
  80 MODULE_DESCRIPTION("ASoC ad73311 driver");
  81 MODULE_AUTHOR("Cliff Cai ");
  82 MODULE_LICENSE("GPL");