openkylin
/
linux
mirror of https://gitee.com/openkylin/linux.git
9
0
Fork 0
Code Issues Projects Releases Wiki Activity

ASoC: core: Add flag to ignore pmdown_time at pcm_close 

With this flag codec drivers can indicate that it is desired
to ignore the pmdown_time for DAPM shutdown sequence when
playback stream is stopped.
The DAPM sequence will be executed without delay in this case.

Signed-off-by: Peter Ujfalusi <peter.ujfalusi@ti.com>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
This commit is contained in:
Peter Ujfalusi 2011-10-14 14:43:33 +03:00 committed by Mark Brown
parent 7a0e67b687
commit 1d69c5c5de
2 changed files with 12 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

1
include/sound/soc.h
View File

@ -578,6 +578,7 @@ struct snd_soc_codec {
/* dapm */
struct snd_soc_dapm_context dapm;
unsigned int ignore_pmdown_time:1; /* pmdown_time is ignored at stop */
#ifdef CONFIG_DEBUG_FS
struct dentry *debugfs_codec_root;

15
sound/soc/soc-pcm.c
View File

@ -319,10 +319,17 @@ static int soc_pcm_close(struct snd_pcm_substream *substream)
cpu_dai->runtime = NULL;
if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
/* start delayed pop wq here for playback streams */
codec_dai->pop_wait = 1;
schedule_delayed_work(&rtd->delayed_work,
msecs_to_jiffies(rtd->pmdown_time));
if (unlikely(codec->ignore_pmdown_time)) {
/* powered down playback stream now */
snd_soc_dapm_stream_event(rtd,
codec_dai->driver->playback.stream_name,
SND_SOC_DAPM_STREAM_STOP);
} else {
/* start delayed pop wq here for playback streams */
codec_dai->pop_wait = 1;
schedule_delayed_work(&rtd->delayed_work,
msecs_to_jiffies(rtd->pmdown_time));
}
} else {
/* capture streams can be powered down now */
snd_soc_dapm_stream_event(rtd,