diff options
| author | Alvin Šipraga <alvin.sipraga@analog.com> | 2026-10-06 14:55:57 +0200 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2026-10-06 17:21:05 +0200 |
| commit | 36d0e05815ce84266c8b138cd4f84c3feeaf15f4 (patch) | |
| tree | 793be2ea38bc3992aaf92ee7b54e064e403170c8 /sound/soc | |
| parent | 64dd172bbffe6135d79a06ddad53dd2da4d8bd62 (diff) | |
ASoC: adau1372: fix invalid default state of output ASRC and DAC muxes
The chip has strange power-on reset values for the registers that
control the output ASRC and DAC source muxes - the values are actually
marked "Reserved" in the datasheet [1]. This means that until the
underlying kcontrols are modified, the codec will not function as
expected.
The registers in question are:
register / field reset value valid values
ASRCO_SOURCE_0_1 0x10
ASRC_OUT_SOURCE0 0 4 .. 16
ASRC_OUT_SOURCE1 1 4 .. 16
ASRCO_SOURCE_2_3 0x10
ASRC_OUT_SOURCE2 2 4 .. 16
ASRC_OUT_SOURCE3 3 4 .. 16
DAC_SOURCE_0_1 0x10
DAC_SOURCE_0 0 12 .. 13
DAC_SOURCE_1 1 12 .. 13
Set some sane defaults during the driver probe:
ADC Decimator0 -> Output ASRC0
ADC Decimator1 -> Output ASRC1
ADC Decimator2 -> Output ASRC2
ADC Decimator3 -> Output ASRC3
Input ASRC0 -> DAC0
Input ASRC1 -> DAC1
With this, the chip will behave as advertised by the default kcontrol
state exposed by the driver.
[1] https://www.analog.com/media/en/technical-documentation/data-sheets/ADAU1372.pdf
Fixes: 6cd4c6459e47 ("ASoC: Add ADAU1372 audio CODEC support")
Signed-off-by: Alvin Šipraga <alvin.sipraga@analog.com>
Acked-by: Nuno Sá <nuno.sa@analog.com>
Link: https://patch.msgid.link/20261006-asoc-adau1372-fixes-v1-2-599cc17fb5f6@analog.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc')
| -rw-r--r-- | sound/soc/codecs/adau1372.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/sound/soc/codecs/adau1372.c b/sound/soc/codecs/adau1372.c index b84495371b0b..c3d3be898ba6 100644 --- a/sound/soc/codecs/adau1372.c +++ b/sound/soc/codecs/adau1372.c @@ -1002,6 +1002,17 @@ int adau1372_probe(struct device *dev, struct regmap *regmap, regmap_write(regmap, ADAU1372_REG_OP_STAGE_MUTE, 0x0); + /* + * Set sane default values for the Output ASRC and DAC input muxes, + * since the power-on reset defaults are invalid "Reserved" states. + */ + regmap_write(regmap, ADAU1372_REG_ASRCO_SOURCE_0_1, + 0x54); /* Decimator0, Decimator1 */ + regmap_write(regmap, ADAU1372_REG_ASRCO_SOURCE_2_3, + 0x76); /* Decimator2, Decimator3 */ + regmap_write(regmap, ADAU1372_REG_DAC_SOURCE, + 0xdc); /* Input ASRC0, Input ASRC1 */ + regmap_write(regmap, 0x7, 0x01); /* CLOCK OUT */ return devm_snd_soc_register_component(dev, &adau1372_driver, &adau1372_dai_driver, 1); |