[PATCH v4 05/27] ALSA: hda/cs8409: Reduce HS pops/clicks for Cyborg

From: Vitaly Rodionov
Date: Wed Aug 11 2021 - 14:58:07 EST


From: Stefan Binding <sbinding@xxxxxxxxxxxxxxxxxxxxx>

Enable HSBIAS_SENSE_EN for Cyborg during jack detect to reduce
pops and clicks.
Do not enable this for Warlock/Bullseye, as it causes ESD issues.

Signed-off-by: Stefan Binding <sbinding@xxxxxxxxxxxxxxxxxxxxx>
Signed-off-by: Vitaly Rodionov <vitalyr@xxxxxxxxxxxxxxxxxxxxx>
---

Changes in v2:
- No changes

Changes in v3:
- No changes

Changes in v4:
- No changes

sound/pci/hda/patch_cs8409.c | 10 ++++++++--
1 file changed, 8 insertions(+), 2 deletions(-)

diff --git a/sound/pci/hda/patch_cs8409.c b/sound/pci/hda/patch_cs8409.c
index e4319a0b9cf6..1745f8b188c6 100644
--- a/sound/pci/hda/patch_cs8409.c
+++ b/sound/pci/hda/patch_cs8409.c
@@ -390,8 +390,14 @@ static void cs8409_cs42l42_enable_jack_detect(struct hda_codec *codec)

mutex_lock(&spec->cs8409_i2c_mux);

- /* Set TIP_SENSE_EN for analog front-end of tip sense. */
- cs8409_i2c_write(codec, CS42L42_I2C_ADDR, 0x1b70, 0x0020, 1);
+ /* Set TIP_SENSE_EN for analog front-end of tip sense.
+ * Additionally set HSBIAS_SENSE_EN for some variants.
+ */
+ if (codec->fixup_id == CS8409_WARLOCK || codec->fixup_id == CS8409_BULLSEYE)
+ cs8409_i2c_write(codec, CS42L42_I2C_ADDR, 0x1b70, 0x0020, 1);
+ else
+ cs8409_i2c_write(codec, CS42L42_I2C_ADDR, 0x1b70, 0x00a0, 1);
+
/* Clear WAKE# */
cs8409_i2c_write(codec, CS42L42_I2C_ADDR, 0x1b71, 0x0001, 1);
/* Wait ~2.5ms */
--
2.25.1