sound/soc/amd/ps/ps-mach.c

   1 // SPDX-License-Identifier: GPL-2.0-only
   2 /*
   3  * Machine driver for AMD Pink Sardine platform using DMIC
   4  *
   5  * Copyright 2022 Advanced Micro Devices, Inc.
   6  */
   7
   8 #include <sound/soc.h>
   9 #include <sound/soc-dapm.h>
  10 #include <linux/module.h>
  11 #include <sound/pcm.h>
  12 #include <sound/pcm_params.h>
  13 #include <linux/io.h>
  14 #include <linux/dmi.h>
  15
  16 #include "acp63.h"
  17
  18 #define DRV_NAME "acp_ps_mach"
  19
  20 SND_SOC_DAILINK_DEF(acp63_pdm,
  21                     DAILINK_COMP_ARRAY(COMP_CPU("acp_ps_pdm_dma.0")));
  22
  23 SND_SOC_DAILINK_DEF(dmic_codec,
  24                     DAILINK_COMP_ARRAY(COMP_CODEC("dmic-codec.0",
  25                                                   "dmic-hifi")));
  26
  27 SND_SOC_DAILINK_DEF(pdm_platform,
  28                     DAILINK_COMP_ARRAY(COMP_PLATFORM("acp_ps_pdm_dma.0")));
  29
  30 static struct snd_soc_dai_link acp63_dai_pdm[] = {
  31         {
  32                 .name = "acp63-dmic-capture",
  33                 .stream_name = "DMIC capture",
  34                 .capture_only = 1,
  35                 SND_SOC_DAILINK_REG(acp63_pdm, dmic_codec, pdm_platform),
  36         },
  37 };
  38
  39 static struct snd_soc_card acp63_card = {
  40         .name = "acp63",
  41         .owner = THIS_MODULE,
  42         .dai_link = acp63_dai_pdm,
  43         .num_links = 1,
  44 };
  45
  46 static int acp63_probe(struct platform_device *pdev)
  47 {
  48         struct acp63_pdm *machine = NULL;
  49         struct snd_soc_card *card;
  50         int ret;
  51
  52         platform_set_drvdata(pdev, &acp63_card);
  53         card = platform_get_drvdata(pdev);
  54         acp63_card.dev = &pdev->dev;
  55
  56         snd_soc_card_set_drvdata(card, machine);
  57         ret = devm_snd_soc_register_card(&pdev->dev, card);
  58         if (ret) {
  59                 return dev_err_probe(&pdev->dev, ret,
  60                                 "snd_soc_register_card(%s) failed\n",
  61                                 card->name);
  62         }
  63
  64         return 0;
  65 }
  66
  67 static struct platform_driver acp63_mach_driver = {
  68         .driver = {
  69                 .name = "acp_ps_mach",
  70                 .pm = &snd_soc_pm_ops,
  71         },
  72         .probe = acp63_probe,
  73 };
  74
  75 module_platform_driver(acp63_mach_driver);
  76
  77 MODULE_AUTHOR("Syed.SabaKareem@amd.com");
  78 MODULE_DESCRIPTION("AMD Pink Sardine support for DMIC");
  79 MODULE_LICENSE("GPL v2");
  80 MODULE_ALIAS("platform:" DRV_NAME);