[PATCH 5.12 035/292] ASoC: Intel: sof_sdw: add mutual exclusion between PCH DMIC and RT715

Greg Kroah-Hartman
2021-07-19T17:58:48Z

From: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>

[ Upstream commit 35564e2bf94611c3eb51d35362addb3cb394ad54 ]

When external RT714/715 devices are used for capture, we don't want
the PCH DMICs to be used.

Any information provided by the SOF platform driver or DMI quirks will
be overridden.

Signed-off-by: Pierre-Louis Bossart <pierre-louis.bossart@linux.intel.com>
Reviewed-by: Kai Vehmanen <kai.vehmanen@linux.intel.com>
Reviewed-by: Libin Yang <libin.yang@intel.com>
Link: https://lore.kernel.org/r/20210505163705.305616-5-pierre-louis.bossart@linux.intel.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Signed-off-by: Sasha Levin <sashal@kernel.org>
---
sound/soc/intel/boards/sof_sdw.c | 19 +++++++++++++++++--
sound/soc/intel/boards/sof_sdw_common.h | 1 +
2 files changed, 18 insertions(+), 2 deletions(-)

diff --git a/sound/soc/intel/boards/sof_sdw.c b/sound/soc/intel/boards/sof_sdw.c
index dfad2ad129ab..5827a16773c9 100644
--- a/sound/soc/intel/boards/sof_sdw.c
+++ b/sound/soc/intel/boards/sof_sdw.c
@@ -354,6 +354,7 @@ static struct sof_sdw_codec_info codec_info_list[] = {
.part_id = 0x714,
.version_id = 3,
.direction = {false, true},
+ .ignore_pch_dmic = true,
.dai_name = "rt715-aif2",
.init = sof_sdw_rt715_sdca_init,
},
@@ -361,6 +362,7 @@ static struct sof_sdw_codec_info codec_info_list[] = {
.part_id = 0x715,
.version_id = 3,
.direction = {false, true},
+ .ignore_pch_dmic = true,
.dai_name = "rt715-aif2",
.init = sof_sdw_rt715_sdca_init,
},
@@ -368,6 +370,7 @@ static struct sof_sdw_codec_info codec_info_list[] = {
.part_id = 0x714,
.version_id = 2,
.direction = {false, true},
+ .ignore_pch_dmic = true,
.dai_name = "rt715-aif2",
.init = sof_sdw_rt715_init,
},
@@ -375,6 +378,7 @@ static struct sof_sdw_codec_info codec_info_list[] = {
.part_id = 0x715,
.version_id = 2,
.direction = {false, true},
+ .ignore_pch_dmic = true,
.dai_name = "rt715-aif2",
.init = sof_sdw_rt715_init,
},
@@ -730,7 +734,8 @@ static int create_sdw_dailink(struct device *dev, int *be_index,
int *cpu_id, bool *group_generated,
struct snd_soc_codec_conf *codec_conf,
int codec_count,
- int *codec_conf_index)
+ int *codec_conf_index,
+ bool *ignore_pch_dmic)
{
const struct snd_soc_acpi_link_adr *link_next;
struct snd_soc_dai_link_component *codecs;
@@ -783,6 +788,9 @@ static int create_sdw_dailink(struct device *dev, int *be_index,
if (codec_index < 0)
return codec_index;

+ if (codec_info_list[codec_index].ignore_pch_dmic)
+ *ignore_pch_dmic = true;
+
cpu_dai_index = *cpu_id;
for_each_pcm_streams(stream) {
char *name, *cpu_name;
@@ -914,6 +922,7 @@ static int sof_card_dai_links_create(struct device *dev,
const struct snd_soc_acpi_link_adr *adr_link;
struct snd_soc_dai_link_component *cpus;
struct snd_soc_codec_conf *codec_conf;
+ bool ignore_pch_dmic = false;
int codec_conf_count;
int codec_conf_index = 0;
bool group_generated[SDW_MAX_GROUPS];
@@ -1020,7 +1029,8 @@ static int sof_card_dai_links_create(struct device *dev,
sdw_cpu_dai_num, cpus, adr_link,
&cpu_id, group_generated,
codec_conf, codec_conf_count,
- &codec_conf_index);
+ &codec_conf_index,
+ &ignore_pch_dmic);
if (ret < 0) {
dev_err(dev, "failed to create dai link %d", be_id);
return -ENOMEM;
@@ -1088,6 +1098,10 @@ SSP:
DMIC:
/* dmic */
if (dmic_num > 0) {
+ if (ignore_pch_dmic) {
+ dev_warn(dev, "Ignoring PCH DMIC\n");
+ goto HDMI;
+ }
cpus[cpu_id].dai_name = "DMIC01 Pin";
init_dai_link(dev, links + link_id, be_id, "dmic01",
0, 1, // DMIC only supports capture
@@ -1106,6 +1120,7 @@ DMIC:
INC_ID(be_id, cpu_id, link_id);
}

+HDMI:
/* HDMI */
if (hdmi_num > 0) {
idisp_components = devm_kcalloc(dev, hdmi_num,
diff --git a/sound/soc/intel/boards/sof_sdw_common.h b/sound/soc/intel/boards/sof_sdw_common.h
index f3cb6796363e..ea60e8ed215c 100644
--- a/sound/soc/intel/boards/sof_sdw_common.h
+++ b/sound/soc/intel/boards/sof_sdw_common.h
@@ -56,6 +56,7 @@ struct sof_sdw_codec_info {
int amp_num;
const u8 acpi_id[ACPI_ID_LEN];
const bool direction[2]; // playback & capture support
+ const bool ignore_pch_dmic;
const char *dai_name;
const struct snd_soc_ops *ops;

--
2.30.2