Currently the bias sense is enabled along with the button detect, but this has two problems. Firstly, the detections themselves arn't covered by the bias sense, potentially resulting in pops and secondly, the sequence of enabling/disabling looks like:
enable bias enable bias sense disable bias sense disable bias
When the bias sense is disabled but the bias is still on the clamp is removed and a pop results. Fix both of these issues by moving the bias sense enable/disable to be along with the bias itself. With a resulting sequence of:
enable bias sense enable bias disable bias disable bias sense
Signed-off-by: Charles Keepax ckeepax@opensource.cirrus.com --- sound/soc/codecs/cs42l43-jack.c | 32 ++++++++++++++++---------------- 1 file changed, 16 insertions(+), 16 deletions(-)
diff --git a/sound/soc/codecs/cs42l43-jack.c b/sound/soc/codecs/cs42l43-jack.c index 7bd7cc1779506..66923cf2fdaff 100644 --- a/sound/soc/codecs/cs42l43-jack.c +++ b/sound/soc/codecs/cs42l43-jack.c @@ -250,6 +250,15 @@ static void cs42l43_start_hs_bias(struct cs42l43_codec *priv, bool force_high) if (!force_high && priv->bias_low) val = 0x2 << CS42L43_HSBIAS_MODE_SHIFT;
+ if (priv->bias_sense_ua) { + regmap_update_bits(cs42l43->regmap, + CS42L43_HS_BIAS_SENSE_AND_CLAMP_AUTOCONTROL, + CS42L43_HSBIAS_SENSE_EN_MASK | + CS42L43_AUTO_HSBIAS_CLAMP_EN_MASK, + CS42L43_HSBIAS_SENSE_EN_MASK | + CS42L43_AUTO_HSBIAS_CLAMP_EN_MASK); + } + regmap_update_bits(cs42l43->regmap, CS42L43_MIC_DETECT_CONTROL_1, CS42L43_HSBIAS_MODE_MASK, val);
@@ -267,6 +276,13 @@ static void cs42l43_stop_hs_bias(struct cs42l43_codec *priv)
regmap_update_bits(cs42l43->regmap, CS42L43_HS2, CS42L43_HS_CLAMP_DISABLE_MASK, 0); + + if (priv->bias_sense_ua) { + regmap_update_bits(cs42l43->regmap, + CS42L43_HS_BIAS_SENSE_AND_CLAMP_AUTOCONTROL, + CS42L43_HSBIAS_SENSE_EN_MASK | + CS42L43_AUTO_HSBIAS_CLAMP_EN_MASK, 0); + } }
irqreturn_t cs42l43_bias_detect_clamp(int irq, void *data) @@ -318,15 +334,6 @@ static void cs42l43_start_button_detect(struct cs42l43_codec *priv) regmap_update_bits(cs42l43->regmap, CS42L43_MIC_DETECT_CONTROL_1, CS42L43_BUTTON_DETECT_MODE_MASK | CS42L43_MIC_LVL_DET_DISABLE_MASK, val); - - if (priv->bias_sense_ua) { - regmap_update_bits(cs42l43->regmap, - CS42L43_HS_BIAS_SENSE_AND_CLAMP_AUTOCONTROL, - CS42L43_HSBIAS_SENSE_EN_MASK | - CS42L43_AUTO_HSBIAS_CLAMP_EN_MASK, - CS42L43_HSBIAS_SENSE_EN_MASK | - CS42L43_AUTO_HSBIAS_CLAMP_EN_MASK); - } }
static void cs42l43_stop_button_detect(struct cs42l43_codec *priv) @@ -335,13 +342,6 @@ static void cs42l43_stop_button_detect(struct cs42l43_codec *priv)
dev_dbg(priv->dev, "Stop button detect\n");
- if (priv->bias_sense_ua) { - regmap_update_bits(cs42l43->regmap, - CS42L43_HS_BIAS_SENSE_AND_CLAMP_AUTOCONTROL, - CS42L43_HSBIAS_SENSE_EN_MASK | - CS42L43_AUTO_HSBIAS_CLAMP_EN_MASK, 0); - } - regmap_update_bits(cs42l43->regmap, CS42L43_MIC_DETECT_CONTROL_1, CS42L43_BUTTON_DETECT_MODE_MASK | CS42L43_MIC_LVL_DET_DISABLE_MASK,