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ASoC: Intel: sof_ssp_amp: fix no DMIC BE Link on Chromebooks

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The SOF topology supports 2 BE Links(dmic01 and dmic16k) and each
link supports up to four DMICs. However, Chromebook does not implement
ACPI NHLT table so the mach->mach_params.dmic_num is always zero. We
add a quirk so machine driver knows it's running on a Chromebook and
need to create BE Links for DMIC.

Reviewed-by: Bard Liao <yung-chuan.liao@linux.intel.com>
Signed-off-by: Brent Lu <brent.lu@intel.com>
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Link: https://lore.kernel.org/r/20220509170922.54868-3-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Brent Lu 2022-05-09 12:09:21 -05:00 committed by Mark Brown
parent 0b56ed197d
commit d1c808765d
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
1 changed files with 14 additions and 2 deletions
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16
sound/soc/intel/boards/sof_ssp_amp.c
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@ -9,6 +9,7 @@
#include <linux/acpi.h>
#include <linux/delay.h>
#include <linux/dmi.h>
#include <linux/module.h>
#include <linux/platform_device.h>
#include <sound/core.h>
@ -78,6 +79,16 @@ struct sof_card_private {
bool idisp_codec;
};
static const struct dmi_system_id chromebook_platforms[] = {
{
.ident = "Google Chromebooks",
.matches = {
DMI_MATCH(DMI_SYS_VENDOR, "Google"),
}
},
{},
};
static const struct snd_soc_dapm_widget sof_ssp_amp_dapm_widgets[] = {
SND_SOC_DAPM_MIC("SoC DMIC", NULL),
};
@ -371,7 +382,7 @@ static int sof_ssp_amp_probe(struct platform_device *pdev)
struct snd_soc_dai_link *dai_links;
struct snd_soc_acpi_mach *mach;
struct sof_card_private *ctx;
int dmic_be_num, hdmi_num = 0;
int dmic_be_num = 0, hdmi_num = 0;
int ret, ssp_codec;
ctx = devm_kzalloc(&pdev->dev, sizeof(*ctx), GFP_KERNEL);
@ -383,7 +394,8 @@ static int sof_ssp_amp_probe(struct platform_device *pdev)
mach = pdev->dev.platform_data;
dmic_be_num = mach->mach_params.dmic_num;
if (dmi_check_system(chromebook_platforms) || mach->mach_params.dmic_num > 0)
dmic_be_num = 2;
ssp_codec = sof_ssp_amp_quirk & SOF_AMPLIFIER_SSP_MASK;