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ASoC: dapm: Add startup & shutdown for dai_links 

For DAI link events, DSPs would like to get notified for startup
and shutdown event as well apart for existing hw_params. This
helps managing DSP resource allocation and freeup on these events
So add support for startup and shutdown for
snd_soc_dai_link_event()

Signed-off-by: Jeeja KP <jeeja.kp@intel.com>
Signed-off-by: Vinod Koul <vinod.koul@intel.com>
Signed-off-by: Mark Brown <broonie@kernel.org>
hifive-unleashed-5.1
Jeeja KP 2015-10-20 22:30:07 +05:30 committed by Mark Brown
parent 19a2557b76
commit 9b8ef9f6b3
1 changed files with 30 additions and 0 deletions
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30
sound/soc/soc-dapm.c
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@ -3478,11 +3478,29 @@ static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w,
switch (event) {
case SND_SOC_DAPM_PRE_PMU:
substream.stream = SNDRV_PCM_STREAM_CAPTURE;
if (source->driver->ops && source->driver->ops->startup) {
ret = source->driver->ops->startup(&substream, source);
if (ret < 0) {
dev_err(source->dev,
"ASoC: startup() failed: %d\n", ret);
goto out;
}
source->active++;
}
ret = soc_dai_hw_params(&substream, params, source);
if (ret < 0)
goto out;
substream.stream = SNDRV_PCM_STREAM_PLAYBACK;
if (sink->driver->ops && sink->driver->ops->startup) {
ret = sink->driver->ops->startup(&substream, sink);
if (ret < 0) {
dev_err(sink->dev,
"ASoC: startup() failed: %d\n", ret);
goto out;
}
sink->active++;
}
ret = soc_dai_hw_params(&substream, params, sink);
if (ret < 0)
goto out;
@ -3502,6 +3520,18 @@ static int snd_soc_dai_link_event(struct snd_soc_dapm_widget *w,
if (ret != 0 && ret != -ENOTSUPP)
dev_warn(sink->dev, "ASoC: Failed to mute: %d\n", ret);
ret = 0;
source->active--;
if (source->driver->ops && source->driver->ops->shutdown) {
substream.stream = SNDRV_PCM_STREAM_CAPTURE;
source->driver->ops->shutdown(&substream, source);
}
sink->active--;
if (sink->driver->ops && sink->driver->ops->shutdown) {
substream.stream = SNDRV_PCM_STREAM_PLAYBACK;
sink->driver->ops->shutdown(&substream, sink);
}
break;
default: