cachepc-linux

Fork of AMDESE/linux with modifications for CachePC side-channel attack
git clone https://git.sinitax.com/sinitax/cachepc-linux
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acp3x-rn.c (1688B)

      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		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_LICENSE("GPL v2");
     76MODULE_ALIAS("platform:" DRV_NAME);