94 lines
2.3 KiB
C
94 lines
2.3 KiB
C
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// SPDX-License-Identifier: GPL-2.0-only
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//
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// Copyright(c) 2021-2022 Intel Corporation. All rights reserved.
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//
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// Authors: Cezary Rojewski <cezary.rojewski@intel.com>
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// Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>
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//
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#include <linux/device.h>
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#include <linux/module.h>
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#include <sound/soc.h>
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#include <sound/soc-acpi.h>
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SND_SOC_DAILINK_DEF(dmic_pin, DAILINK_COMP_ARRAY(COMP_CPU("DMIC Pin")));
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SND_SOC_DAILINK_DEF(dmic_wov_pin, DAILINK_COMP_ARRAY(COMP_CPU("DMIC WoV Pin")));
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SND_SOC_DAILINK_DEF(dmic_codec, DAILINK_COMP_ARRAY(COMP_CODEC("dmic-codec", "dmic-hifi")));
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/* Name overridden on probe */
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SND_SOC_DAILINK_DEF(platform, DAILINK_COMP_ARRAY(COMP_PLATFORM("")));
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static struct snd_soc_dai_link card_dai_links[] = {
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/* Back ends */
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{
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.name = "DMIC",
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.id = 0,
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.dpcm_capture = 1,
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.nonatomic = 1,
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.no_pcm = 1,
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SND_SOC_DAILINK_REG(dmic_pin, dmic_codec, platform),
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},
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{
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.name = "DMIC WoV",
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.id = 1,
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.dpcm_capture = 1,
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.nonatomic = 1,
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.no_pcm = 1,
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.ignore_suspend = 1,
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SND_SOC_DAILINK_REG(dmic_wov_pin, dmic_codec, platform),
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},
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};
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static const struct snd_soc_dapm_widget card_widgets[] = {
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SND_SOC_DAPM_MIC("SoC DMIC", NULL),
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};
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static const struct snd_soc_dapm_route card_routes[] = {
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{"DMic", NULL, "SoC DMIC"},
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{"DMIC Rx", NULL, "Capture"},
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{"DMIC WoV Rx", NULL, "Capture"},
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};
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static int avs_dmic_probe(struct platform_device *pdev)
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{
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struct snd_soc_acpi_mach *mach;
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struct snd_soc_card *card;
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struct device *dev = &pdev->dev;
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int ret;
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mach = dev_get_platdata(dev);
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card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
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if (!card)
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return -ENOMEM;
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card->name = "avs_dmic";
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card->dev = dev;
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card->owner = THIS_MODULE;
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card->dai_link = card_dai_links;
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card->num_links = ARRAY_SIZE(card_dai_links);
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card->dapm_widgets = card_widgets;
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card->num_dapm_widgets = ARRAY_SIZE(card_widgets);
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card->dapm_routes = card_routes;
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card->num_dapm_routes = ARRAY_SIZE(card_routes);
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card->fully_routed = true;
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ret = snd_soc_fixup_dai_links_platform_name(card, mach->mach_params.platform);
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if (ret)
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return ret;
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return devm_snd_soc_register_card(dev, card);
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}
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static struct platform_driver avs_dmic_driver = {
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.probe = avs_dmic_probe,
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.driver = {
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.name = "avs_dmic",
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.pm = &snd_soc_pm_ops,
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},
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};
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module_platform_driver(avs_dmic_driver);
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("platform:avs_dmic");
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