diff options
| author | Peter Ujfalusi <peter.ujfalusi@ti.com> | 2017-08-31 11:49:47 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2017-08-31 10:24:01 +0100 |
| commit | 19b0fa11bb1c0c24296c9f670a37c091bd3c815d (patch) | |
| tree | c2168c918eb3192ab2c53a49d2885bb30023c325 /sound/soc/codecs/tlv320aic3x.h | |
| parent | 5771a8c08880cdca3bfb4a3fc6d309d6bba20877 (diff) | |
| download | linux-19b0fa11bb1c0c24296c9f670a37c091bd3c815d.tar.bz2 | |
ASoC: tlv320aic3x: Support for OCMV configuration
In aic3x class of devices Output Common-Mode Voltage can be configured for
better analog performance.
The OCMV value depends on the Analog and digital domain power supply
voltage configuration.
The default OCMV of 1.35V gives best performance when AVDD is around 2.7V
and DVDD is 1.525V, but for higher AVDD/DVDD higher OCMV setting is
recommended.
The patch gives an automatic way of guessing the best OCMV which can be
overwritten by a DT parameter if needed.
Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/tlv320aic3x.h')
| -rw-r--r-- | sound/soc/codecs/tlv320aic3x.h | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/sound/soc/codecs/tlv320aic3x.h b/sound/soc/codecs/tlv320aic3x.h index 89fa692df206..34c35196aa0d 100644 --- a/sound/soc/codecs/tlv320aic3x.h +++ b/sound/soc/codecs/tlv320aic3x.h @@ -243,6 +243,14 @@ #define MICBIAS_LEVEL_SHIFT (6) #define MICBIAS_LEVEL_MASK (3 << 6) +/* HPOUT_SC */ +#define HPOUT_SC_OCMV_MASK (3 << 6) +#define HPOUT_SC_OCMV_SHIFT (6) +#define HPOUT_SC_OCMV_1_35V 0 +#define HPOUT_SC_OCMV_1_5V 1 +#define HPOUT_SC_OCMV_1_65V 2 +#define HPOUT_SC_OCMV_1_8V 3 + /* headset detection / button API */ /* The AIC3x supports detection of stereo headsets (GND + left + right signal) |