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1// SPDX-License-Identifier: GPL-2.0+2//3// Machine driver for AMD Renoir platform using DMIC4//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 return dev_err_probe(&pdev->dev, ret,58 "snd_soc_register_card(%s) failed\n",59 card->name);60 }61 return 0;62}63 64static struct platform_driver acp_mach_driver = {65 .driver = {66 .name = "acp_pdm_mach",67 .pm = &snd_soc_pm_ops,68 },69 .probe = acp_probe,70};71 72module_platform_driver(acp_mach_driver);73 74MODULE_AUTHOR("Vijendar.Mukunda@amd.com");75MODULE_DESCRIPTION("AMD Renoir support for DMIC");76MODULE_LICENSE("GPL v2");77MODULE_ALIAS("platform:" DRV_NAME);78