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 "acp62.h" 17 18 #define DRV_NAME "acp_ps_mach" 19 20 SND_SOC_DAILINK_DEF(acp62_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 acp62_dai_pdm[] = { 31 { 32 .name = "acp62-dmic-capture", 33 .stream_name = "DMIC capture", 34 .capture_only = 1, 35 SND_SOC_DAILINK_REG(acp62_pdm, dmic_codec, pdm_platform), 36 }, 37 }; 38 39 static struct snd_soc_card acp62_card = { 40 .name = "acp62", 41 .owner = THIS_MODULE, 42 .dai_link = acp62_dai_pdm, 43 .num_links = 1, 44 }; 45 46 static int acp62_probe(struct platform_device *pdev) 47 { 48 struct acp62_pdm *machine = NULL; 49 struct snd_soc_card *card; 50 int ret; 51 52 platform_set_drvdata(pdev, &acp62_card); 53 card = platform_get_drvdata(pdev); 54 acp62_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 acp62_mach_driver = { 68 .driver = { 69 .name = "acp_ps_mach", 70 .pm = &snd_soc_pm_ops, 71 }, 72 .probe = acp62_probe, 73 }; 74 75 module_platform_driver(acp62_mach_driver); 76 77 MODULE_AUTHOR("Syed.SabaKareem@amd.com"); 78 MODULE_LICENSE("GPL v2"); 79 MODULE_ALIAS("platform:" DRV_NAME); 80