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ASoC: Intel: avs: Add DMIC machine board

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Support AVS-DMIC configuration by implementing board connecting AVS
platform component with DMIC codec one.

Signed-off-by: Amadeusz Sławiński <amadeuszx.slawinski@linux.intel.com>
Signed-off-by: Cezary Rojewski <cezary.rojewski@intel.com>
Link: https://lore.kernel.org/r/20220511162403.3987658-5-cezary.rojewski@intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Cezary Rojewski 2022-05-11 18:23:53 +02:00 committed by Mark Brown
parent 97030a4337
commit 6575e5cae7
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
3 changed files with 103 additions and 0 deletions
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8
sound/soc/intel/avs/boards/Kconfig
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@ -4,6 +4,14 @@ menu "Intel AVS Machine drivers"
comment "Available DSP configurations"
config SND_SOC_INTEL_AVS_MACH_DMIC
tristate "DMIC generic board"
select SND_SOC_DMIC
help
This adds support for AVS with Digital Mic array configuration.
Say Y or m if you have such a device. This is a recommended option.
If unsure select "N".
config SND_SOC_INTEL_AVS_MACH_HDAUDIO
tristate "HD-Audio generic board"
select SND_SOC_HDA

2
sound/soc/intel/avs/boards/Makefile
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@ -1,5 +1,7 @@
# SPDX-License-Identifier: GPL-2.0-only
snd-soc-avs-dmic-objs := dmic.o
snd-soc-avs-hdaudio-objs := hdaudio.o
obj-$(CONFIG_SND_SOC_INTEL_AVS_MACH_DMIC) += snd-soc-avs-dmic.o
obj-$(CONFIG_SND_SOC_INTEL_AVS_MACH_HDAUDIO) += snd-soc-avs-hdaudio.o

93
sound/soc/intel/avs/boards/dmic.c Normal file
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@ -0,0 +1,93 @@
// SPDX-License-Identifier: GPL-2.0-only
//
// Copyright(c) 2021-2022 Intel Corporation. All rights reserved.
//
// Authors: Cezary Rojewski <cezary.rojewski@intel.com>
// Amadeusz Slawinski <amadeuszx.slawinski@linux.intel.com>
//
#include <linux/device.h>
#include <linux/module.h>
#include <sound/soc.h>
#include <sound/soc-acpi.h>
SND_SOC_DAILINK_DEF(dmic_pin, DAILINK_COMP_ARRAY(COMP_CPU("DMIC Pin")));
SND_SOC_DAILINK_DEF(dmic_wov_pin, DAILINK_COMP_ARRAY(COMP_CPU("DMIC WoV Pin")));
SND_SOC_DAILINK_DEF(dmic_codec, DAILINK_COMP_ARRAY(COMP_CODEC("dmic-codec", "dmic-hifi")));
/* Name overridden on probe */
SND_SOC_DAILINK_DEF(platform, DAILINK_COMP_ARRAY(COMP_PLATFORM("")));
static struct snd_soc_dai_link card_dai_links[] = {
/* Back ends */
{
.name = "DMIC",
.id = 0,
.dpcm_capture = 1,
.nonatomic = 1,
.no_pcm = 1,
SND_SOC_DAILINK_REG(dmic_pin, dmic_codec, platform),
},
{
.name = "DMIC WoV",
.id = 1,
.dpcm_capture = 1,
.nonatomic = 1,
.no_pcm = 1,
.ignore_suspend = 1,
SND_SOC_DAILINK_REG(dmic_wov_pin, dmic_codec, platform),
},
};
static const struct snd_soc_dapm_widget card_widgets[] = {
SND_SOC_DAPM_MIC("SoC DMIC", NULL),
};
static const struct snd_soc_dapm_route card_routes[] = {
{"DMic", NULL, "SoC DMIC"},
{"DMIC Rx", NULL, "Capture"},
{"DMIC WoV Rx", NULL, "Capture"},
};
static int avs_dmic_probe(struct platform_device *pdev)
{
struct snd_soc_acpi_mach *mach;
struct snd_soc_card *card;
struct device *dev = &pdev->dev;
int ret;
mach = dev_get_platdata(dev);
card = devm_kzalloc(dev, sizeof(*card), GFP_KERNEL);
if (!card)
return -ENOMEM;
card->name = "avs_dmic";
card->dev = dev;
card->owner = THIS_MODULE;
card->dai_link = card_dai_links;
card->num_links = ARRAY_SIZE(card_dai_links);
card->dapm_widgets = card_widgets;
card->num_dapm_widgets = ARRAY_SIZE(card_widgets);
card->dapm_routes = card_routes;
card->num_dapm_routes = ARRAY_SIZE(card_routes);
card->fully_routed = true;
ret = snd_soc_fixup_dai_links_platform_name(card, mach->mach_params.platform);
if (ret)
return ret;
return devm_snd_soc_register_card(dev, card);
}
static struct platform_driver avs_dmic_driver = {
.probe = avs_dmic_probe,
.driver = {
.name = "avs_dmic",
.pm = &snd_soc_pm_ops,
},
};
module_platform_driver(avs_dmic_driver);
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:avs_dmic");