LXR linux/sound/soc/intel/boards/sof_sdw

   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 "sof_sdw_common.h"
  11
  12static const struct snd_soc_dapm_widget dmic_widgets[] = {
  13        SND_SOC_DAPM_MIC("SoC DMIC", NULL),
  14};
  15
  16static const struct snd_soc_dapm_route dmic_map[] = {
  17        /* digital mics */
  18        {"DMic", NULL, "SoC DMIC"},
  19};
  20
  21int sof_sdw_dmic_init(struct snd_soc_pcm_runtime *rtd)
  22{
  23        struct snd_soc_card *card = rtd->card;
  24        int ret;
  25
  26        ret = snd_soc_dapm_new_controls(&card->dapm, dmic_widgets,
  27                                        ARRAY_SIZE(dmic_widgets));
  28        if (ret) {
  29                dev_err(card->dev, "DMic widget addition failed: %d\n", ret);
  30                /* Don't need to add routes if widget addition failed */
  31                return ret;
  32        }
  33
  34        ret = snd_soc_dapm_add_routes(&card->dapm, dmic_map,
  35                                      ARRAY_SIZE(dmic_map));
  36
  37        if (ret)
  38                dev_err(card->dev, "DMic map addition failed: %d\n", ret);
  39
  40        return ret;
  41}
  42
  43