sound/soc/intel/boards/sof_sdw_dmic.c

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