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-aad.c | |
| 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-aad.c')
| -rw-r--r-- | sound/soc/codecs/da7219-aad.c | 18 |
1 files changed, 14 insertions, 4 deletions
diff --git a/sound/soc/codecs/da7219-aad.c b/sound/soc/codecs/da7219-aad.c index 2b8914dd5990..6274d79c1353 100644 --- a/sound/soc/codecs/da7219-aad.c +++ b/sound/soc/codecs/da7219-aad.c @@ -204,10 +204,19 @@ static void da7219_aad_hptest_work(struct work_struct *work) snd_soc_update_bits(codec, DA7219_MIXOUT_R_CTRL, DA7219_MIXOUT_R_AMP_EN_MASK, DA7219_MIXOUT_R_AMP_EN_MASK); - snd_soc_write(codec, DA7219_HP_L_CTRL, - DA7219_HP_L_AMP_OE_MASK | DA7219_HP_L_AMP_EN_MASK); - snd_soc_write(codec, DA7219_HP_R_CTRL, - DA7219_HP_R_AMP_OE_MASK | DA7219_HP_R_AMP_EN_MASK); + snd_soc_update_bits(codec, DA7219_HP_L_CTRL, + DA7219_HP_L_AMP_OE_MASK | DA7219_HP_L_AMP_EN_MASK, + DA7219_HP_L_AMP_OE_MASK | DA7219_HP_L_AMP_EN_MASK); + snd_soc_update_bits(codec, DA7219_HP_R_CTRL, + DA7219_HP_R_AMP_OE_MASK | DA7219_HP_R_AMP_EN_MASK, + DA7219_HP_R_AMP_OE_MASK | DA7219_HP_R_AMP_EN_MASK); + msleep(DA7219_SETTLING_DELAY); + snd_soc_update_bits(codec, DA7219_HP_L_CTRL, + DA7219_HP_L_AMP_MUTE_EN_MASK | + DA7219_HP_L_AMP_MIN_GAIN_EN_MASK, 0); + snd_soc_update_bits(codec, DA7219_HP_R_CTRL, + DA7219_HP_R_AMP_MUTE_EN_MASK | + DA7219_HP_R_AMP_MIN_GAIN_EN_MASK, 0); /* * If we're running from the internal oscillator then give audio paths @@ -244,6 +253,7 @@ static void da7219_aad_hptest_work(struct work_struct *work) regcache_mark_dirty(da7219->regmap); regcache_sync_region(da7219->regmap, DA7219_HP_L_CTRL, DA7219_HP_R_CTRL); + msleep(DA7219_SETTLING_DELAY); regcache_sync_region(da7219->regmap, DA7219_MIXOUT_L_CTRL, DA7219_MIXOUT_R_CTRL); regcache_sync_region(da7219->regmap, DA7219_DROUTING_ST_OUTFILT_1L, |