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
20SND_SOC_DAILINK_DEF(acp63_pdm,
21 DAILINK_COMP_ARRAY(COMP_CPU("acp_ps_pdm_dma.0")));
22
23SND_SOC_DAILINK_DEF(dmic_codec,
24 DAILINK_COMP_ARRAY(COMP_CODEC("dmic-codec.0",
25 "dmic-hifi")));
26
27SND_SOC_DAILINK_DEF(pdm_platform,
28 DAILINK_COMP_ARRAY(COMP_PLATFORM("acp_ps_pdm_dma.0")));
29
30static 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
39static 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
46static 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, data: &acp63_card);
53 card = platform_get_drvdata(pdev);
54 acp63_card.dev = &pdev->dev;
55
56 snd_soc_card_set_drvdata(card, data: machine);
57 ret = devm_snd_soc_register_card(dev: &pdev->dev, card);
58 if (ret) {
59 return dev_err_probe(dev: &pdev->dev, err: ret,
60 fmt: "snd_soc_register_card(%s) failed\n",
61 card->name);
62 }
63
64 return 0;
65}
66
67static 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
75module_platform_driver(acp63_mach_driver);
76
77MODULE_AUTHOR("Syed.SabaKareem@amd.com");
78MODULE_DESCRIPTION("AMD Pink Sardine support for DMIC");
79MODULE_LICENSE("GPL v2");
80MODULE_ALIAS("platform:" DRV_NAME);
81

source code of linux/sound/soc/amd/ps/ps-mach.c