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Linux/sound/soc/codecs/ad73311.c

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  1 // SPDX-License-Identifier: GPL-2.0-or-later
  2 /*
  3  * ad73311.c  --  ALSA Soc AD73311 codec support
  4  *
  5  * Copyright:   Analog Device 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");
 83 

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