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); 46