acp6x-mach.c

// SPDX-License-Identifier: GPL-2.0+
/*
 * Machine driver for AMD Yellow Carp platform using DMIC
 *
 * Copyright 2021 Advanced Micro Devices, Inc.
 */

#include <sound/soc.h>
#include <sound/soc-dapm.h>
#include <linux/module.h>
#include <sound/pcm.h>
#include <sound/pcm_params.h>
#include <linux/io.h>
#include <linux/dmi.h>
#include <linux/acpi.h>

#include "acp6x.h"

#define DRV_NAME "acp_yc_mach"

SND_SOC_DAILINK_DEF(acp6x_pdm,
		    DAILINK_COMP_ARRAY(COMP_CPU("acp_yc_pdm_dma.0")));

SND_SOC_DAILINK_DEF(dmic_codec,
		    DAILINK_COMP_ARRAY(COMP_CODEC("dmic-codec.0",
						  "dmic-hifi")));

SND_SOC_DAILINK_DEF(pdm_platform,
		    DAILINK_COMP_ARRAY(COMP_PLATFORM("acp_yc_pdm_dma.0")));

static struct snd_soc_dai_link acp6x_dai_pdm[] = {
	{
		.name = "acp6x-dmic-capture",
		.stream_name = "DMIC capture",
		.capture_only = 1,
		SND_SOC_DAILINK_REG(acp6x_pdm, dmic_codec, pdm_platform),
	},
};

static struct snd_soc_card acp6x_card = {
	.name = "acp6x",
	.owner = THIS_MODULE,
	.dai_link = acp6x_dai_pdm,
	.num_links = 1,
};

static const struct dmi_system_id yc_acp_quirk_table[] = {
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "Dell Inc."),
			DMI_MATCH(DMI_PRODUCT_NAME, "Dell G15 5525"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "21D0"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "21D0"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "21D1"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "21D2"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "21D3"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "21D4"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "21D5"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "21CF"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "21CG"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "21CQ"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "21CR"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "21CM"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "21CN"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "21CH"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "21CJ"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "21CK"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "21CL"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "21EF"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "21EM"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "21EN"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "21HY"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "21J0"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "21J5"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "21J6"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "21M1"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "21M3"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "21M4"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "21M5"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "21M6"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "21ME"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "82QF"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "82TL"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "82UG"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "82UU"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "82V2"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "82YM"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "83AS"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "83BS"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "83HN"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "83L3"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "83N6"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "83Q2"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "83Q3"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "RB"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Nitro ANV15-41"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "83J2"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"),
			DMI_MATCH(DMI_PRODUCT_NAME, "83J3"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK COMPUTER INC."),
			DMI_MATCH(DMI_PRODUCT_NAME, "UM5302TA"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK COMPUTER INC."),
			DMI_MATCH(DMI_PRODUCT_NAME, "M5402RA"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK COMPUTER INC."),
			DMI_MATCH(DMI_PRODUCT_NAME, "M5602RA"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK COMPUTER INC."),
			DMI_MATCH(DMI_PRODUCT_NAME, "M6400RC"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK COMPUTER INC."),
			DMI_MATCH(DMI_PRODUCT_NAME, "M3402RA"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK COMPUTER INC."),
			DMI_MATCH(DMI_PRODUCT_NAME, "M6500RC"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK COMPUTER INC."),
			DMI_MATCH(DMI_PRODUCT_NAME, "M6501RM"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK COMPUTER INC."),
			DMI_MATCH(DMI_PRODUCT_NAME, "E1404FA"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK COMPUTER INC."),
			DMI_MATCH(DMI_PRODUCT_NAME, "E1504FA"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK COMPUTER INC."),
			DMI_MATCH(DMI_PRODUCT_NAME, "M7600RE"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "ASUSTeK COMPUTER INC."),
			DMI_MATCH(DMI_PRODUCT_NAME, "M3502RA"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "Micro-Star International Co., Ltd."),
			DMI_MATCH(DMI_PRODUCT_NAME, "Bravo 15 B7ED"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "Micro-Star International Co., Ltd."),
			DMI_MATCH(DMI_PRODUCT_NAME, "Bravo 15 C7VF"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "Micro-Star International Co., Ltd."),
			DMI_MATCH(DMI_PRODUCT_NAME, "Bravo 17 D7VEK"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "Micro-Star International Co., Ltd."),
			DMI_MATCH(DMI_PRODUCT_NAME, "Bravo 17 D7VF"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "Alienware"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Alienware m17 R5 AMD"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "TIMI"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Redmi Book Pro 14 2022"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "TIMI"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Redmi Book Pro 15 2022"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "TIMI"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Xiaomi Book Pro 14 2022"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "TIMI"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Redmi G 2022"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "Razer"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Blade 14 (2022) - RZ09-0427"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "RB"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Swift SFA16-41"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "IRBIS"),
			DMI_MATCH(DMI_PRODUCT_NAME, "15NBC1011"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "HP"),
			DMI_MATCH(DMI_PRODUCT_NAME, "OMEN by HP Gaming Laptop 16z-n000"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "HP"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Victus by HP Gaming Laptop 15-fb1xxx"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "HP"),
			DMI_MATCH(DMI_PRODUCT_NAME, "Victus by HP Gaming Laptop 15-fb2xxx"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "HP"),
			DMI_MATCH(DMI_BOARD_NAME, "8A42"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "HP"),
			DMI_MATCH(DMI_BOARD_NAME, "8A43"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "HP"),
			DMI_MATCH(DMI_BOARD_NAME, "8A44"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "HP"),
			DMI_MATCH(DMI_BOARD_NAME, "8A22"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "HP"),
			DMI_MATCH(DMI_BOARD_NAME, "8A3E"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "HP"),
			DMI_MATCH(DMI_BOARD_NAME, "8A7F"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "HP"),
			DMI_MATCH(DMI_BOARD_NAME, "8A81"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "HP"),
			DMI_MATCH(DMI_BOARD_NAME, "8B27"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "HP"),
			DMI_MATCH(DMI_BOARD_NAME, "8B2F"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "HP"),
			DMI_MATCH(DMI_BOARD_NAME, "8BD6"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "MECHREVO"),
			DMI_MATCH(DMI_BOARD_NAME, "MRID6"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "MDC"),
			DMI_MATCH(DMI_BOARD_NAME, "Herbag_MDU"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "System76"),
			DMI_MATCH(DMI_PRODUCT_VERSION, "pang12"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "System76"),
			DMI_MATCH(DMI_PRODUCT_VERSION, "pang13"),
		}
	},
	{
		.driver_data = &acp6x_card,
		.matches = {
			DMI_MATCH(DMI_BOARD_VENDOR, "Micro-Star International Co., Ltd."),
			DMI_MATCH(DMI_PRODUCT_NAME, "Bravo 15 C7UCX"),
		}
	},
	{}
};

static int acp6x_probe(struct platform_device *pdev)
{
	const struct dmi_system_id *dmi_id;
	struct acp6x_pdm *machine = NULL;
	struct snd_soc_card *card;
	struct acpi_device *adev;
	acpi_handle handle;
	acpi_integer dmic_status;
	int ret;
	bool is_dmic_enable, wov_en;

	/* IF WOV entry not found, enable dmic based on AcpDmicConnected entry*/
	is_dmic_enable = false;
	wov_en = true;
	/* check the parent device's firmware node has _DSD or not */
	adev = ACPI_COMPANION(pdev->dev.parent);
	if (adev) {
		const union acpi_object *obj;

		if (!acpi_dev_get_property(adev, "AcpDmicConnected", ACPI_TYPE_INTEGER, &obj) &&
		    obj->integer.value == 1)
			is_dmic_enable = true;
	}

	handle = ACPI_HANDLE(pdev->dev.parent);
	ret = acpi_evaluate_integer(handle, "_WOV", NULL, &dmic_status);
	if (!ACPI_FAILURE(ret)) {
		wov_en = dmic_status;
		if (!wov_en)
			return -ENODEV;
	} else {
		/* Incase of ACPI method read failure then jump to check_dmi_entry */
		goto check_dmi_entry;
	}

	if (is_dmic_enable)
		platform_set_drvdata(pdev, &acp6x_card);

check_dmi_entry:
	/* check for any DMI overrides */
	dmi_id = dmi_first_match(yc_acp_quirk_table);
	if (dmi_id)
		platform_set_drvdata(pdev, dmi_id->driver_data);

	card = platform_get_drvdata(pdev);
	if (!card)
		return -ENODEV;
	dev_info(&pdev->dev, "Enabling ACP DMIC support via %s", dmi_id ? "DMI" : "ACPI");
	acp6x_card.dev = &pdev->dev;

	snd_soc_card_set_drvdata(card, machine);
	ret = devm_snd_soc_register_card(&pdev->dev, card);
	if (ret) {
		return dev_err_probe(&pdev->dev, ret,
				"snd_soc_register_card(%s) failed\n",
				card->name);
	}
	return 0;
}

static struct platform_driver acp6x_mach_driver = {
	.driver = {
		.name = "acp_yc_mach",
		.pm = &snd_soc_pm_ops,
	},
	.probe = acp6x_probe,
};

module_platform_driver(acp6x_mach_driver);

MODULE_AUTHOR("[email protected]");
MODULE_DESCRIPTION("AMD Yellow Carp support for DMIC");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:" DRV_NAME);