Unverified Commit 70ad2e6b authored by Charles Keepax's avatar Charles Keepax Committed by Mark Brown
Browse files

ASoC: cs42l43: Disable headphone clamps during type detection 



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: default avatarCharles Keepax <ckeepax@opensource.cirrus.com>
Link: https://patch.msgid.link/20250423090944.1504538-1-ckeepax@opensource.cirrus.com


Signed-off-by: default avatarMark Brown <broonie@kernel.org>
parent 68715cb5

sound/soc/codecs/cs42l43-jack.c

+7 −0
Original line number Diff line number Diff line
@@ -654,6 +654,10 @@ 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);
@@ -665,6 +669,9 @@ 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;