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228 lines
4.8 KiB
228 lines
4.8 KiB
// SPDX-License-Identifier: GPL-2.0+ |
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/* |
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* Machine driver for AMD Yellow Carp platform using DMIC |
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* |
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* Copyright 2021 Advanced Micro Devices, Inc. |
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*/ |
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#include <sound/soc.h> |
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#include <sound/soc-dapm.h> |
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#include <linux/module.h> |
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#include <sound/pcm.h> |
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#include <sound/pcm_params.h> |
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#include <linux/io.h> |
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#include <linux/dmi.h> |
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#include <linux/acpi.h> |
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#include "acp6x.h" |
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#define DRV_NAME "acp_yc_mach" |
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SND_SOC_DAILINK_DEF(acp6x_pdm, |
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DAILINK_COMP_ARRAY(COMP_CPU("acp_yc_pdm_dma.0"))); |
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SND_SOC_DAILINK_DEF(dmic_codec, |
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DAILINK_COMP_ARRAY(COMP_CODEC("dmic-codec.0", |
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"dmic-hifi"))); |
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SND_SOC_DAILINK_DEF(pdm_platform, |
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DAILINK_COMP_ARRAY(COMP_PLATFORM("acp_yc_pdm_dma.0"))); |
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static struct snd_soc_dai_link acp6x_dai_pdm[] = { |
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{ |
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.name = "acp6x-dmic-capture", |
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.stream_name = "DMIC capture", |
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.capture_only = 1, |
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SND_SOC_DAILINK_REG(acp6x_pdm, dmic_codec, pdm_platform), |
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}, |
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}; |
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static struct snd_soc_card acp6x_card = { |
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.name = "acp6x", |
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.owner = THIS_MODULE, |
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.dai_link = acp6x_dai_pdm, |
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.num_links = 1, |
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}; |
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static const struct dmi_system_id yc_acp_quirk_table[] = { |
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{ |
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.driver_data = &acp6x_card, |
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.matches = { |
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DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"), |
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DMI_MATCH(DMI_PRODUCT_NAME, "21D2"), |
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} |
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}, |
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{ |
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.driver_data = &acp6x_card, |
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.matches = { |
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DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"), |
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DMI_MATCH(DMI_PRODUCT_NAME, "21D3"), |
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} |
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}, |
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{ |
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.driver_data = &acp6x_card, |
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.matches = { |
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DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"), |
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DMI_MATCH(DMI_PRODUCT_NAME, "21D4"), |
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} |
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}, |
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{ |
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.driver_data = &acp6x_card, |
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.matches = { |
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DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"), |
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DMI_MATCH(DMI_PRODUCT_NAME, "21D5"), |
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} |
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}, |
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{ |
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.driver_data = &acp6x_card, |
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.matches = { |
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DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"), |
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DMI_MATCH(DMI_PRODUCT_NAME, "21CF"), |
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} |
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}, |
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{ |
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.driver_data = &acp6x_card, |
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.matches = { |
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DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"), |
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DMI_MATCH(DMI_PRODUCT_NAME, "21CG"), |
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} |
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}, |
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{ |
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.driver_data = &acp6x_card, |
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.matches = { |
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DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"), |
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DMI_MATCH(DMI_PRODUCT_NAME, "21CQ"), |
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} |
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}, |
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{ |
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.driver_data = &acp6x_card, |
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.matches = { |
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DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"), |
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DMI_MATCH(DMI_PRODUCT_NAME, "21CR"), |
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} |
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}, |
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{ |
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.driver_data = &acp6x_card, |
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.matches = { |
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DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"), |
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DMI_MATCH(DMI_PRODUCT_NAME, "21CM"), |
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} |
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}, |
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{ |
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.driver_data = &acp6x_card, |
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.matches = { |
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DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"), |
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DMI_MATCH(DMI_PRODUCT_NAME, "21CN"), |
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} |
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}, |
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{ |
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.driver_data = &acp6x_card, |
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.matches = { |
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DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"), |
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DMI_MATCH(DMI_PRODUCT_NAME, "21CH"), |
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} |
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}, |
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{ |
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.driver_data = &acp6x_card, |
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.matches = { |
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DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"), |
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DMI_MATCH(DMI_PRODUCT_NAME, "21CJ"), |
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} |
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}, |
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{ |
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.driver_data = &acp6x_card, |
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.matches = { |
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DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"), |
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DMI_MATCH(DMI_PRODUCT_NAME, "21CK"), |
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} |
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}, |
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{ |
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.driver_data = &acp6x_card, |
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.matches = { |
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DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"), |
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DMI_MATCH(DMI_PRODUCT_NAME, "21CL"), |
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} |
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}, |
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{ |
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.driver_data = &acp6x_card, |
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.matches = { |
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DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"), |
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DMI_MATCH(DMI_PRODUCT_NAME, "21EM"), |
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} |
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}, |
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{ |
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.driver_data = &acp6x_card, |
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.matches = { |
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DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"), |
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DMI_MATCH(DMI_PRODUCT_NAME, "21EN"), |
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} |
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}, |
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{ |
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.driver_data = &acp6x_card, |
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.matches = { |
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DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"), |
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DMI_MATCH(DMI_PRODUCT_NAME, "21J5"), |
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} |
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}, |
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{ |
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.driver_data = &acp6x_card, |
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.matches = { |
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DMI_MATCH(DMI_BOARD_VENDOR, "LENOVO"), |
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DMI_MATCH(DMI_PRODUCT_NAME, "21J6"), |
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} |
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}, |
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{} |
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}; |
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static int acp6x_probe(struct platform_device *pdev) |
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{ |
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const struct dmi_system_id *dmi_id; |
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struct acp6x_pdm *machine = NULL; |
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struct snd_soc_card *card; |
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struct acpi_device *adev; |
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int ret; |
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/* check the parent device's firmware node has _DSD or not */ |
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adev = ACPI_COMPANION(pdev->dev.parent); |
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if (adev) { |
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const union acpi_object *obj; |
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if (!acpi_dev_get_property(adev, "AcpDmicConnected", ACPI_TYPE_INTEGER, &obj) && |
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obj->integer.value == 1) |
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platform_set_drvdata(pdev, &acp6x_card); |
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} |
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/* check for any DMI overrides */ |
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dmi_id = dmi_first_match(yc_acp_quirk_table); |
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if (dmi_id) |
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platform_set_drvdata(pdev, dmi_id->driver_data); |
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card = platform_get_drvdata(pdev); |
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if (!card) |
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return -ENODEV; |
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dev_info(&pdev->dev, "Enabling ACP DMIC support via %s", dmi_id ? "DMI" : "ACPI"); |
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acp6x_card.dev = &pdev->dev; |
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snd_soc_card_set_drvdata(card, machine); |
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ret = devm_snd_soc_register_card(&pdev->dev, card); |
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if (ret) { |
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return dev_err_probe(&pdev->dev, ret, |
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"snd_soc_register_card(%s) failed\n", |
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card->name); |
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} |
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return 0; |
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} |
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static struct platform_driver acp6x_mach_driver = { |
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.driver = { |
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.name = "acp_yc_mach", |
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.pm = &snd_soc_pm_ops, |
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}, |
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.probe = acp6x_probe, |
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}; |
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module_platform_driver(acp6x_mach_driver); |
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MODULE_AUTHOR("[email protected]"); |
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MODULE_LICENSE("GPL v2"); |
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MODULE_ALIAS("platform:" DRV_NAME);
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