diff options
| author | Brent Lu <brent.lu@intel.com> | 2022-05-09 20:09:21 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2022-06-09 11:29:40 +0300 |
| commit | 73c3dd7f3dbb6a04e7958e73b6b74a288425034f (patch) | |
| tree | bfaff6517197ff560f7b713dc2f512aa2f3ae021 /sound/soc | |
| parent | 492a909f775bbedde528947904440cd11d4dfe66 (diff) | |
| download | linux-73c3dd7f3dbb6a04e7958e73b6b74a288425034f.tar.xz | |
ASoC: Intel: sof_ssp_amp: fix no DMIC BE Link on Chromebooks
[ Upstream commit d1c808765deb2bcd35d827402ed4d75d068aae18 ]
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>
Signed-off-by: Sasha Levin <sashal@kernel.org>
Diffstat (limited to 'sound/soc')
| -rw-r--r-- | sound/soc/intel/boards/sof_ssp_amp.c | 16 |
1 files changed, 14 insertions, 2 deletions
diff --git a/sound/soc/intel/boards/sof_ssp_amp.c b/sound/soc/intel/boards/sof_ssp_amp.c index 88530e9de543..ef70c6f27fe1 100644 --- a/sound/soc/intel/boards/sof_ssp_amp.c +++ b/sound/soc/intel/boards/sof_ssp_amp.c @@ -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; |