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);
77