diff options
| author | Adam Thomson <Adam.Thomson.Opensource@diasemi.com> | 2016-10-03 13:21:01 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2016-10-05 14:53:11 +0300 |
| commit | 86834511c2acd23e214d5739e9ea58e31b975d1f (patch) | |
| tree | 7ba756c2bfdfa1c5d8e9ce6b05b694694f16f432 /sound/soc/codecs/da7219.h | |
| parent | 513e43efafe329dad7b5794583b67ac898dcbdca (diff) | |
| download | linux-86834511c2acd23e214d5739e9ea58e31b975d1f.tar.xz | |
ASoC: da7219: Improve pop/click performance for sensitive HPs
Currently on some headsets slight pops can be heard during DAPM
power-up/down. This can also be witnessed during the HP detect
procedure. This patch addresses the issue by adjusting DAPM power
sequencing slightly, the introduction of delays and use of
minimum HP gain to avoid such noise artefacts.
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/da7219.h')
| -rw-r--r-- | sound/soc/codecs/da7219.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/sound/soc/codecs/da7219.h b/sound/soc/codecs/da7219.h index 66d3bad86739..6baba7455fa1 100644 --- a/sound/soc/codecs/da7219.h +++ b/sound/soc/codecs/da7219.h @@ -777,6 +777,10 @@ #define DA7219_SYS_STAT_CHECK_RETRIES 6 #define DA7219_SYS_STAT_CHECK_DELAY 50 +/* Power up/down Delays */ +#define DA7219_SETTLING_DELAY 40 +#define DA7219_MIN_GAIN_DELAY 30 + enum da7219_clk_src { DA7219_CLKSRC_MCLK = 0, DA7219_CLKSRC_MCLK_SQR, @@ -814,6 +818,7 @@ struct da7219_priv { bool master; bool alc_en; + u8 gain_ramp_ctrl; }; #endif /* __DA7219_H */ |