1 // SPDX-License-Identifier: GPL-2.0-only 2 // This file incorporates work covered by the following copyright notice: 3 // Copyright (c) 2024 Intel Corporation 4 // Copyright (c) 2024 Advanced Micro Devices, Inc. 5 6 /* 7 * soc_sdw_rt_dmic - Helpers to handle Realtek SDW DMIC from generic machine driver 8 */ 9 10 #include <linux/device.h> 11 #include <linux/errno.h> 12 #include <sound/soc.h> 13 #include <sound/soc-acpi.h> 14 #include <sound/soc_sdw_utils.h> 15 16 int asoc_sdw_rt_dmic_rtd_init(struct snd_soc_pcm_runtime *rtd, struct snd_soc_dai *dai) 17 { 18 struct snd_soc_card *card = rtd->card; 19 struct snd_soc_component *component; 20 char *mic_name; 21 22 component = dai->component; 23 24 /* 25 * rt715-sdca (aka rt714) is a special case that uses different name in card->components 26 * and component->name_prefix. 27 */ 28 if (!strcmp(component->name_prefix, "rt714")) 29 mic_name = devm_kasprintf(card->dev, GFP_KERNEL, "rt715-sdca"); 30 else 31 mic_name = devm_kasprintf(card->dev, GFP_KERNEL, "%s", component->name_prefix); 32 33 card->components = devm_kasprintf(card->dev, GFP_KERNEL, 34 "%s mic:%s", card->components, 35 mic_name); 36 if (!card->components) 37 return -ENOMEM; 38 39 dev_dbg(card->dev, "card->components: %s\n", card->components); 40 41 return 0; 42 } 43 EXPORT_SYMBOL_NS(asoc_sdw_rt_dmic_rtd_init, SND_SOC_SDW_UTILS); 44