linux/sound
John Hsu 2263fddcd0 ASoC: nau8825: lock longer to avoid playback pop upon resume
There is an issue about pop noise in NAU88L25 as follows.
Issue 54078: Chell_headphone pop back from S3
(1)Play directly to hw, bypassing CRAS:
sox -b 16 -n -t alsa hw:0,0 synth sine 200 sine 200
(2)Close lid or powerd_dbus_suspend, then press a key to resume.
(3)no audio after resume
(4)Audio will be back after close then reopen the pcm device.

After verification, we find one defect is that semaphone lock is not
long enough and expired. In this situation, the playback comes back
early but pauses a while to wait for the crosstalk detection done.
But the detection spends too much time and lock time is up. Therefore,
the playback and jack detection sequence interfere to each other.
That breaks sequence and makes noise. The driver extends the lock
time for the issue.

Signed-off-by: John Hsu <KCHSU0@nuvoton.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
2016-11-30 17:42:52 +00:00
..
aoa powerpc updates for 4.9 2016-10-07 20:19:31 -07:00
arm ALSA: arm: Fix empty menuconfig SND_ARM 2016-08-01 16:07:53 +02:00
atmel
core ALSA: seq: fix passing wrong pointer in function call of compatibility layer 2016-10-12 20:09:36 +02:00
drivers ALSA: dummy: Fix a use-after-free at closing 2016-06-24 15:18:32 +02:00
firewire Merge branch 'for-linus' into for-next 2016-09-11 09:33:12 +02:00
hda ALSA: hdac: add missing \n to end of dev_err messages 2016-09-16 19:23:57 +02:00
i2c ALSA: ak4114: remove redundant check on err being < 0 2016-07-12 12:28:04 +02:00
isa ALSA: adlib: Utilize the module_isa_driver macro 2016-06-01 07:35:52 +02:00
mips ALSA: Remove deprecated AU1X00 AC97 driver 2016-02-08 08:17:15 +01:00
oss sound: oss: Use kernel_read_file_from_path() for mod_firmware_load() 2016-07-26 10:38:03 +02:00
parisc
pci ALSA: hda - Fix a failure of micmute led when having multi adcs 2016-10-12 20:07:25 +02:00
pcmcia
ppc powerpc updates for 4.9 2016-10-07 20:19:31 -07:00
sh ALSA: sh: aica: Remove deprecated create_workqueue 2016-06-07 11:23:33 +02:00
soc ASoC: nau8825: lock longer to avoid playback pop upon resume 2016-11-30 17:42:52 +00:00
sparc ALSA: Add missing dependency on CONFIG_SND_TIMER 2016-01-27 07:10:38 +01:00
spi ALSA: at73c213: manage SSC clock 2016-01-20 09:59:27 +01:00
synth ALSA: emux: constify nrpn_conv_table structures 2016-01-06 10:19:49 +01:00
usb ALSA: line6: fix a crash in line6_hwdep_write() 2016-10-12 20:10:23 +02:00
ac97_bus.c
Kconfig
last.c
Makefile sound: oss: Use kernel_read_file_from_path() for mod_firmware_load() 2016-07-26 10:38:03 +02:00
sound_core.c