ASoC: cs42l43: Extend timeout on bias sense timeout

For very slow removals the current bias sense timeout is sometimes too
short and unclamps the mic bias before the jack removal is properly
detected by the tip detect, causing a pop. As bias sense should be
tuned to deliver very few false positives, increase the timeout fairly
dramatically to cover all but the most exaggerated removals.

Signed-off-by: Charles Keepax <ckeepax@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20230919103116.580305-6-ckeepax@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/sound/soc/codecs/cs42l43-jack.c b/sound/soc/codecs/cs42l43-jack.c
index 66923cf2fdaff0cdda639ebecb40810efcef4061..861f9ee671cdffe1caa322730c6fdb28c20fd913 100644 (file)
--- a/sound/soc/codecs/cs42l43-jack.c
+++ b/sound/soc/codecs/cs42l43-jack.c
@@ -290,7 +290,7 @@ irqreturn_t cs42l43_bias_detect_clamp(int irq, void *data)
        struct cs42l43_codec *priv = data;
 
        queue_delayed_work(system_wq, &priv->bias_sense_timeout,
-                          msecs_to_jiffies(250));
+                          msecs_to_jiffies(1000));
 
        return IRQ_HANDLED;
 }