The NHLT spec defines a VENDOR_DEFINED geometry, which requires
reading additional information to figure out the number of
microphones.
Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@xxxxxxxxxxxxxxx>
---
include/sound/intel-nhlt.h | 10 ++++++++--
sound/hda/intel-nhlt.c | 6 +++++-
2 files changed, 13 insertions(+), 3 deletions(-)
diff --git a/include/sound/intel-nhlt.h b/include/sound/intel-nhlt.h
index 857922f03931..f657fd8fc0ad 100644
--- a/include/sound/intel-nhlt.h
+++ b/include/sound/intel-nhlt.h
@@ -96,16 +96,22 @@ struct nhlt_resource_desc {
#define MIC_ARRAY_2CH 2
#define MIC_ARRAY_4CH 4
-struct nhlt_tdm_config {
+struct nhlt_device_specific_config {
u8 virtual_slot;
u8 config_type;
} __packed;
struct nhlt_dmic_array_config {
- struct nhlt_tdm_config tdm_config;
+ struct nhlt_device_specific_config device_config;
u8 array_type;
} __packed;
+struct nhlt_vendor_dmic_array_config {
+ struct nhlt_dmic_array_config dmic_config;
+ u8 nb_mics;
+ /* TODO add vendor mic config */
+} __packed;
+
enum {
NHLT_MIC_ARRAY_2CH_SMALL = 0xa,
NHLT_MIC_ARRAY_2CH_BIG = 0xb,
diff --git a/sound/hda/intel-nhlt.c b/sound/hda/intel-nhlt.c
index 7ba871e470f2..441ee39520a8 100644
--- a/sound/hda/intel-nhlt.c
+++ b/sound/hda/intel-nhlt.c
@@ -58,6 +58,7 @@ int intel_nhlt_get_dmic_geo(struct device *dev, struct nhlt_acpi_table *nhlt)
{
struct nhlt_endpoint *epnt;
struct nhlt_dmic_array_config *cfg;
+ struct nhlt_vendor_dmic_array_config *cfg_vendor;
unsigned int dmic_geo = 0;
u8 j;
@@ -81,7 +82,10 @@ int intel_nhlt_get_dmic_geo(struct device *dev, struct nhlt_acpi_table *nhlt)
case NHLT_MIC_ARRAY_4CH_2ND_GEOM:
dmic_geo = MIC_ARRAY_4CH;
break;
-
+ case NHLT_MIC_ARRAY_VENDOR_DEFINED:
+ cfg_vendor = (struct nhlt_vendor_dmic_array_config *)cfg;
+ dmic_geo = cfg_vendor->nb_mics;
+ break;
default:
dev_warn(dev, "undefined DMIC array_type 0x%0x\n",
cfg->array_type);
--
2.20.1
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