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| author | Richard Fitzgerald <rf@opensource.cirrus.com> | 2021-11-01 10:10:06 +0000 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-11-15 19:25:23 +0000 |
| commit | 7ec4a058c16f3da9c2c0c66506f45c083198ed30 (patch) | |
| tree | 7a5748bb22b8bc388c605baf88851dc31ac14f8c /sound/soc/codecs/cs42l42.h | |
| parent | 8d0872f6239f9d067d538d8368bdec643bb0d255 (diff) | |
| download | lwn-7ec4a058c16f3da9c2c0c66506f45c083198ed30.tar.gz lwn-7ec4a058c16f3da9c2c0c66506f45c083198ed30.zip | |
ASoC: cs42l42: Add control for audio slow-start switch
This adds an ALSA control so that the slow-start audio ramp feature
can be disabled. This is useful for high-definition audio applications.
The register field is unusual in that it is a 3-bit field with only
two valid values, 000=off and 111=on.
Signed-off-by: Richard Fitzgerald <rf@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20211101101006.13092-1-rf@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/cs42l42.h')
| -rw-r--r-- | sound/soc/codecs/cs42l42.h | 3 |
1 files changed, 3 insertions, 0 deletions
diff --git a/sound/soc/codecs/cs42l42.h b/sound/soc/codecs/cs42l42.h index f45bcc9a3a62..c8b3267a318b 100644 --- a/sound/soc/codecs/cs42l42.h +++ b/sound/soc/codecs/cs42l42.h @@ -62,6 +62,9 @@ #define CS42L42_INTERNAL_FS_MASK (1 << CS42L42_INTERNAL_FS_SHIFT) #define CS42L42_SFTRAMP_RATE (CS42L42_PAGE_10 + 0x0A) +#define CS42L42_SLOW_START_ENABLE (CS42L42_PAGE_10 + 0x0B) +#define CS42L42_SLOW_START_EN_MASK GENMASK(6, 4) +#define CS42L42_SLOW_START_EN_SHIFT 4 #define CS42L42_I2C_DEBOUNCE (CS42L42_PAGE_10 + 0x0E) #define CS42L42_I2C_STRETCH (CS42L42_PAGE_10 + 0x0F) #define CS42L42_I2C_TIMEOUT (CS42L42_PAGE_10 + 0x10) |