xref: /openbmc/linux/sound/soc/amd/ps/ps-mach.c (revision 4b192114)
1 // SPDX-License-Identifier: GPL-2.0+
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 
20 SND_SOC_DAILINK_DEF(acp63_pdm,
21 		    DAILINK_COMP_ARRAY(COMP_CPU("acp_ps_pdm_dma.0")));
22 
23 SND_SOC_DAILINK_DEF(dmic_codec,
24 		    DAILINK_COMP_ARRAY(COMP_CODEC("dmic-codec.0",
25 						  "dmic-hifi")));
26 
27 SND_SOC_DAILINK_DEF(pdm_platform,
28 		    DAILINK_COMP_ARRAY(COMP_PLATFORM("acp_ps_pdm_dma.0")));
29 
30 static 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 
39 static 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 
acp63_probe(struct platform_device * pdev)46 static 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, &acp63_card);
53 	card = platform_get_drvdata(pdev);
54 	acp63_card.dev = &pdev->dev;
55 
56 	snd_soc_card_set_drvdata(card, machine);
57 	ret = devm_snd_soc_register_card(&pdev->dev, card);
58 	if (ret) {
59 		return dev_err_probe(&pdev->dev, ret,
60 				"snd_soc_register_card(%s) failed\n",
61 				card->name);
62 	}
63 
64 	return 0;
65 }
66 
67 static 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 
75 module_platform_driver(acp63_mach_driver);
76 
77 MODULE_AUTHOR("Syed.SabaKareem@amd.com");
78 MODULE_LICENSE("GPL v2");
79 MODULE_ALIAS("platform:" DRV_NAME);
80