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ASoC: max98396: Implement DSP speaker monitor 

Allow the selection of the TDM slot that is used to send back speaker
monitor data. The DT property adi,spkfb-slot-no can be used to configure
this setting which defaults to 2.

Signed-off-by: Daniel Mack <daniel@zonque.org>
Link: https://lore.kernel.org/r/20220624104712.1934484-8-daniel@zonque.org
Signed-off-by: Mark Brown <broonie@kernel.org>
This commit is contained in:
Daniel Mack 2022-06-24 12:47:11 +02:00 committed by Mark Brown
parent c529fd620b
commit f42924b49b
No known key found for this signature in database
GPG Key ID: 24D68B725D5487D0
2 changed files with 9 additions and 0 deletions
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8
sound/soc/codecs/max98396.c
View File

@ -1377,6 +1377,9 @@ static int max98396_probe(struct snd_soc_component *component)
regmap_write(max98396->regmap,
MAX98396_R2045_PCM_TX_CTRL_2,
max98396->i_slot);
regmap_write(max98396->regmap,
MAX98396_R204A_PCM_TX_CTRL_7,
max98396->spkfb_slot);
if (max98396->v_slot < 8)
if (max98396->device_id == CODEC_TYPE_MAX98396)
@ -1552,6 +1555,11 @@ static void max98396_read_device_property(struct device *dev,
else
max98396->i_slot = 1;
if (!device_property_read_u32(dev, "adi,spkfb-slot-no", &value))
max98396->spkfb_slot = value & 0xF;
else
max98396->spkfb_slot = 2;
if (!device_property_read_u32(dev, "adi,bypass-slot-no", &value))
max98396->bypass_slot = value & 0xF;
else

1
sound/soc/codecs/max98396.h
View File

@ -303,6 +303,7 @@ struct max98396_priv {
struct regulator *pvdd, *vbat;
unsigned int v_slot;
unsigned int i_slot;
unsigned int spkfb_slot;
unsigned int bypass_slot;
bool interleave_mode;
unsigned int ch_size;