From: Charles Keepax ckeepax@opensource.cirrus.com
[ Upstream commit 70ad2e6bd180f94be030aef56e59693e36d945f3 ]
The headphone clamps cause fairly loud pops during type detect because they sink current from the detection process itself. Disable the clamps whilst the type detect runs, to improve the detection pop performance.
Signed-off-by: Charles Keepax ckeepax@opensource.cirrus.com Link: https://patch.msgid.link/20250423090944.1504538-1-ckeepax@opensource.cirrus.... Signed-off-by: Mark Brown broonie@kernel.org Signed-off-by: Sasha Levin sashal@kernel.org --- sound/soc/codecs/cs42l43-jack.c | 7 +++++++ 1 file changed, 7 insertions(+)
diff --git a/sound/soc/codecs/cs42l43-jack.c b/sound/soc/codecs/cs42l43-jack.c index 0b8e88b19888e..6d8455c1bee6d 100644 --- a/sound/soc/codecs/cs42l43-jack.c +++ b/sound/soc/codecs/cs42l43-jack.c @@ -642,6 +642,10 @@ static int cs42l43_run_type_detect(struct cs42l43_codec *priv)
reinit_completion(&priv->type_detect);
+ regmap_update_bits(cs42l43->regmap, CS42L43_STEREO_MIC_CLAMP_CTRL, + CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_VAL_MASK, + CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_VAL_MASK); + cs42l43_start_hs_bias(priv, true); regmap_update_bits(cs42l43->regmap, CS42L43_HS2, CS42L43_HSDET_MODE_MASK, 0x3 << CS42L43_HSDET_MODE_SHIFT); @@ -653,6 +657,9 @@ static int cs42l43_run_type_detect(struct cs42l43_codec *priv) CS42L43_HSDET_MODE_MASK, 0x2 << CS42L43_HSDET_MODE_SHIFT); cs42l43_stop_hs_bias(priv);
+ regmap_update_bits(cs42l43->regmap, CS42L43_STEREO_MIC_CLAMP_CTRL, + CS42L43_SMIC_HPAMP_CLAMP_DIS_FRC_VAL_MASK, 0); + if (!time_left) return -ETIMEDOUT;