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 struct snd_soc_dapm_context *dapm = snd_soc_card_to_dapm(card); 28 int ret; 29 30 ret = snd_soc_dapm_new_controls(dapm, dmic_widgets, 31 ARRAY_SIZE(dmic_widgets)); 32 if (ret) { 33 dev_err(card->dev, "DMic widget addition failed: %d\n", ret); 34 /* Don't need to add routes if widget addition failed */ 35 return ret; 36 } 37 38 ret = snd_soc_dapm_add_routes(dapm, dmic_map, 39 ARRAY_SIZE(dmic_map)); 40 41 if (ret) 42 dev_err(card->dev, "DMic map addition failed: %d\n", ret); 43 44 return ret; 45 } 46 EXPORT_SYMBOL_NS(asoc_sdw_dmic_init, "SND_SOC_SDW_UTILS"); 47