sound/soc/amd/renoir/acp3x-rn.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 //
   3 // Machine driver for AMD Renoir platform using DMIC
   4 //
   5 //Copyright 2020 Advanced Micro Devices, Inc.
   6
   7 #include <sound/soc.h>
   8 #include <sound/soc-dapm.h>
   9 #include <linux/module.h>
  10 #include <sound/pcm.h>
  11 #include <sound/pcm_params.h>
  12 #include <linux/io.h>
  13
  14 #include "rn_acp3x.h"
  15
  16 #define DRV_NAME "acp_pdm_mach"
  17
  18 SND_SOC_DAILINK_DEF(acp_pdm,
  19                     DAILINK_COMP_ARRAY(COMP_CPU("acp_rn_pdm_dma.0")));
  20
  21 SND_SOC_DAILINK_DEF(dmic_codec,
  22                     DAILINK_COMP_ARRAY(COMP_CODEC("dmic-codec.0",
  23                                                   "dmic-hifi")));
  24
  25 SND_SOC_DAILINK_DEF(platform,
  26                     DAILINK_COMP_ARRAY(COMP_PLATFORM("acp_rn_pdm_dma.0")));
  27
  28 static struct snd_soc_dai_link acp_dai_pdm[] = {
  29         {
  30                 .name = "acp3x-dmic-capture",
  31                 .stream_name = "DMIC capture",
  32                 .capture_only = 1,
  33                 SND_SOC_DAILINK_REG(acp_pdm, dmic_codec, platform),
  34         },
  35 };
  36
  37 static struct snd_soc_card acp_card = {
  38         .name = "acp",
  39         .owner = THIS_MODULE,
  40         .dai_link = acp_dai_pdm,
  41         .num_links = 1,
  42 };
  43
  44 static int acp_probe(struct platform_device *pdev)
  45 {
  46         int ret;
  47         struct acp_pdm *machine = NULL;
  48         struct snd_soc_card *card;
  49
  50         card = &acp_card;
  51         acp_card.dev = &pdev->dev;
  52
  53         platform_set_drvdata(pdev, card);
  54         snd_soc_card_set_drvdata(card, machine);
  55         ret = devm_snd_soc_register_card(&pdev->dev, card);
  56         if (ret) {
  57                 dev_err(&pdev->dev,
  58                         "snd_soc_register_card(%s) failed: %d\n",
  59                         acp_card.name, ret);
  60                 return ret;
  61         }
  62         return 0;
  63 }
  64
  65 static struct platform_driver acp_mach_driver = {
  66         .driver = {
  67                 .name = "acp_pdm_mach",
  68                 .pm = &snd_soc_pm_ops,
  69         },
  70         .probe = acp_probe,
  71 };
  72
  73 module_platform_driver(acp_mach_driver);
  74
  75 MODULE_AUTHOR("Vijendar.Mukunda@amd.com");
  76 MODULE_LICENSE("GPL v2");
  77 MODULE_ALIAS("platform:" DRV_NAME);