diff options
| author | SJLIN0 <SJLIN0@nuvoton.com> | 2022-09-15 04:28:00 +0300 |
|---|---|---|
| committer | Mark Brown <broonie@kernel.org> | 2022-09-19 20:35:23 +0300 |
| commit | 7042bde216ada135b2f88423ae714ab9a22e3a22 (patch) | |
| tree | e95b169369d21c6acd0ff935d0735ff1a6ae3c73 /sound/soc/codecs/nau8824.h | |
| parent | 4a13c949501902d4e6b59cc693005f4ca352dc15 (diff) | |
| download | linux-7042bde216ada135b2f88423ae714ab9a22e3a22.tar.xz | |
ASoC: nau8824: Fix semaphore is released unexpectedly
On resuming, we anticipate that the jack is detected before playback
or capture. Therefore, we use semaphore to control the jack detection
done without any bothering. During booting, the driver launches jack
detection and releases the semaphore. However, it doesn't perceive the
maniputation of semaphore is not like resuming procedure. This makes
the semaphore's count value become to 2. There is more than one thread
can enter into the critical section. This may get unexpected situation
and make some chaos.
Signed-off-by: SJLIN0 <SJLIN0@nuvoton.com>
Signed-off-by: Wallace Lin <savagecin@gmail.com>
Link: https://lore.kernel.org/r/20220915012800.825196-1-SJLIN0@nuvoton.com
Signed-off-by: Mark Brown <broonie@kernel.org>
Diffstat (limited to 'sound/soc/codecs/nau8824.h')
| -rw-r--r-- | sound/soc/codecs/nau8824.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/sound/soc/codecs/nau8824.h b/sound/soc/codecs/nau8824.h index de4bae8281d0..5fcfc43dfc85 100644 --- a/sound/soc/codecs/nau8824.h +++ b/sound/soc/codecs/nau8824.h @@ -436,6 +436,7 @@ struct nau8824 { struct semaphore jd_sem; int fs; int irq; + int resume_lock; int micbias_voltage; int vref_impedance; int jkdet_polarity; |