diff options
| author | Vitaly Rodionov <vitalyr@opensource.cirrus.com> | 2021-05-11 15:52:20 +0100 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2021-05-12 13:02:53 +0100 |
| commit | c9f2e3c3ddab87d93cde99f6da10dd00c1d1edb9 (patch) | |
| tree | 494d8f48900b08c1d0b31258b00d5754f744896c /sound/soc/codecs/cs42l42.c | |
| parent | 9b7493468fa7eeef2e86b8c646c0535c00eed3e2 (diff) | |
| download | lwn-c9f2e3c3ddab87d93cde99f6da10dd00c1d1edb9.tar.gz lwn-c9f2e3c3ddab87d93cde99f6da10dd00c1d1edb9.zip | |
ASoC: cs42l42: make HSBIAS_SENSE_EN optional
HSBIAS_SENSE_EN configures HSBIAS output current sense through
the external 2.21-k resistor. HSBIAS_SENSE is hardware feature to reduce
the potential pop noise during the headset plug out slowly. But on some
platforms ESD voltage will affect it causing test to fail, especially
with CTIA headset type. For different hardware setups, a designer might
want to tweak default behavior.
Signed-off-by: Vitaly Rodionov <vitalyr@opensource.cirrus.com>
Link: https://lore.kernel.org/r/20210511145220.125760-1-vitalyr@opensource.cirrus.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/cs42l42.c')
| -rw-r--r-- | sound/soc/codecs/cs42l42.c | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/sound/soc/codecs/cs42l42.c b/sound/soc/codecs/cs42l42.c index d7fb6b38fd7c..5087c5b781f8 100644 --- a/sound/soc/codecs/cs42l42.c +++ b/sound/soc/codecs/cs42l42.c @@ -1033,7 +1033,7 @@ static void cs42l42_process_hs_type_detect(struct cs42l42_private *cs42l42) CS42L42_AUTO_HSBIAS_HIZ_MASK | CS42L42_TIP_SENSE_EN_MASK | CS42L42_HSBIAS_SENSE_TRIP_MASK, - (1 << CS42L42_HSBIAS_SENSE_EN_SHIFT) | + (cs42l42->hs_bias_sense_en << CS42L42_HSBIAS_SENSE_EN_SHIFT) | (1 << CS42L42_AUTO_HSBIAS_HIZ_SHIFT) | (0 << CS42L42_TIP_SENSE_EN_SHIFT) | (3 << CS42L42_HSBIAS_SENSE_TRIP_SHIFT)); @@ -1808,6 +1808,11 @@ static int cs42l42_handle_device_data(struct device *dev, (cs42l42->hs_bias_ramp_rate << CS42L42_HSBIAS_RAMP_SHIFT)); + if (device_property_read_bool(dev, "cirrus,hs-bias-sense-disable")) + cs42l42->hs_bias_sense_en = 0; + else + cs42l42->hs_bias_sense_en = 1; + return 0; } |