sound/soc/sdw_utils/soc_sdw_dmic.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 // This file incorporates work covered by the following copyright notice:
   3 // Copyright (c) 2020 Intel Corporation
   4 // Copyright (c) 2024 Advanced Micro Devices, Inc.
   5
   6 /*
   7  *  soc_sdw_dmic - Helpers to handle dmic from generic machine driver
   8  */
   9
  10 #include <sound/soc.h>
  11 #include <sound/soc-acpi.h>
  12 #include <sound/soc-dapm.h>
  13 #include <sound/soc_sdw_utils.h>
  14
  15 static const struct snd_soc_dapm_widget dmic_widgets[] = {
  16         SND_SOC_DAPM_MIC("SoC DMIC", NULL),
  17 };
  18
  19 static const struct snd_soc_dapm_route dmic_map[] = {
  20         /* digital mics */
  21         {"DMic", NULL, "SoC DMIC"},
  22 };
  23
  24 int asoc_sdw_dmic_init(struct snd_soc_pcm_runtime *rtd)
  25 {
  26         struct snd_soc_card *card = rtd->card;
  27         int ret;
  28
  29         ret = snd_soc_dapm_new_controls(&card->dapm, dmic_widgets,
  30                                         ARRAY_SIZE(dmic_widgets));
  31         if (ret) {
  32                 dev_err(card->dev, "DMic widget addition failed: %d\n", ret);
  33                 /* Don't need to add routes if widget addition failed */
  34                 return ret;
  35         }
  36
  37         ret = snd_soc_dapm_add_routes(&card->dapm, dmic_map,
  38                                       ARRAY_SIZE(dmic_map));
  39
  40         if (ret)
  41                 dev_err(card->dev, "DMic map addition failed: %d\n", ret);
  42
  43         return ret;
  44 }
  45 EXPORT_SYMBOL_NS(asoc_sdw_dmic_init, "SND_SOC_SDW_UTILS");