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1// SPDX-License-Identifier: GPL-2.0-only2// This file incorporates work covered by the following copyright notice:3// Copyright (c) 2024 Intel Corporation4// Copyright (c) 2024 Advanced Micro Devices, Inc.5 6/*7 * soc_sdw_rt_dmic - Helpers to handle Realtek SDW DMIC from generic machine driver8 */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 16int 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->components26 * and component->name_prefix.27 */28 if (!strcmp(component->name_prefix, "rt714"))29 mic_name = devm_kasprintf(card->dev, GFP_KERNEL, "rt715-sdca");30 else31 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}43EXPORT_SYMBOL_NS(asoc_sdw_rt_dmic_rtd_init, SND_SOC_SDW_UTILS);44