LXR linux/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
  18SND_SOC_DAILINK_DEF(acp_pdm,
  19                    DAILINK_COMP_ARRAY(COMP_CPU("acp_rn_pdm_dma.0")));
  20
  21SND_SOC_DAILINK_DEF(dmic_codec,
  22                    DAILINK_COMP_ARRAY(COMP_CODEC("dmic-codec.0",
  23                                                  "dmic-hifi")));
  24
  25SND_SOC_DAILINK_DEF(platform,
  26                    DAILINK_COMP_ARRAY(COMP_PLATFORM("acp_rn_pdm_dma.0")));
  27
  28static 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
  37static 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
  44static 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
  65static 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
  73module_platform_driver(acp_mach_driver);
  74
  75MODULE_AUTHOR("Vijendar.Mukunda@amd.com");
  76MODULE_LICENSE("GPL v2");
  77MODULE_ALIAS("platform:" DRV_NAME);
  78