LXR linux/sound/soc/sdw_utils/soc_sdw_rt

   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
  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->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        if (!mic_name)
  33                return -ENOMEM;
  34
  35        card->components = devm_kasprintf(card->dev, GFP_KERNEL,
  36                                          "%s mic:%s", card->components,
  37                                          mic_name);
  38        if (!card->components)
  39                return -ENOMEM;
  40
  41        dev_dbg(card->dev, "card->components: %s\n", card->components);
  42
  43        return 0;
  44}
  45EXPORT_SYMBOL_NS(asoc_sdw_rt_dmic_rtd_init, "SND_SOC_SDW_UTILS");
  46