sound/soc/intel/boards/sof_sdw_cs_amp.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 // Copyright (c) 2023 Intel Corporation
   3
   4 /*
   5  *  sof_sdw_cs_amp - Helpers to handle CS35L56 from generic machine driver
   6  */
   7
   8 #include <linux/device.h>
   9 #include <linux/errno.h>
  10 #include <sound/soc.h>
  11 #include <sound/soc-acpi.h>
  12 #include "sof_sdw_common.h"
  13
  14 #define CODEC_NAME_SIZE 8
  15
  16 static int cs_spk_init(struct snd_soc_pcm_runtime *rtd)
  17 {
  18         const char *dai_name = rtd->dai_link->codecs->dai_name;
  19         struct snd_soc_card *card = rtd->card;
  20         char codec_name[CODEC_NAME_SIZE];
  21
  22         snprintf(codec_name, CODEC_NAME_SIZE, "%s", dai_name);
  23         card->components = devm_kasprintf(card->dev, GFP_KERNEL,
  24                                           "%s spk:%s",
  25                                           card->components, codec_name);
  26         if (!card->components)
  27                 return -ENOMEM;
  28
  29         return 0;
  30 }
  31
  32
  33 int sof_sdw_cs_amp_init(struct snd_soc_card *card,
  34                         const struct snd_soc_acpi_link_adr *link,
  35                         struct snd_soc_dai_link *dai_links,
  36                         struct sof_sdw_codec_info *info,
  37                         bool playback)
  38 {
  39         /* Count amp number and do init on playback link only. */
  40         if (!playback)
  41                 return 0;
  42
  43         info->amp_num++;
  44         dai_links->init = cs_spk_init;
  45
  46         return 0;
  47 }