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 <sound/soc-dapm.h>
  11#include "sof_sdw_common.h"
  12
  13static const struct snd_soc_dapm_widget dmic_widgets[] = {
  14        SND_SOC_DAPM_MIC("SoC DMIC", NULL),
  15};
  16
  17static const struct snd_soc_dapm_route dmic_map[] = {
  18        /* digital mics */
  19        {"DMic", NULL, "SoC DMIC"},
  20};
  21
  22int 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
  44