ASoC: Allow mulitple usage count of codec and cpu dai
If we are to have a snd_soc_dai i.e, cpu_dai and codec_dai, shared among two
or more dai_links we need to log the number of active users of the dai.
For that, we change semantics of the snd_soc_dai.active flag from indicator
to reference counter.
Signed-off-by: Jassi Brar <jassi.brar@samsung.com>
Acked-by: Liam Girdwood <lrg@slimlogic.co.uk>
Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
diff --git a/sound/soc/soc-core.c b/sound/soc/soc-core.c
index 1215a0e..f30959c 100644
--- a/sound/soc/soc-core.c
+++ b/sound/soc/soc-core.c
@@ -454,11 +454,15 @@
pr_debug("asoc: min rate %d max rate %d\n", runtime->hw.rate_min,
runtime->hw.rate_max);
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- cpu_dai->playback.active = codec_dai->playback.active = 1;
- else
- cpu_dai->capture.active = codec_dai->capture.active = 1;
- cpu_dai->active = codec_dai->active = 1;
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ cpu_dai->playback.active++;
+ codec_dai->playback.active++;
+ } else {
+ cpu_dai->capture.active++;
+ codec_dai->capture.active++;
+ }
+ cpu_dai->active++;
+ codec_dai->active++;
card->codec->active++;
mutex_unlock(&pcm_mutex);
return 0;
@@ -530,15 +534,16 @@
mutex_lock(&pcm_mutex);
- if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
- cpu_dai->playback.active = codec_dai->playback.active = 0;
- else
- cpu_dai->capture.active = codec_dai->capture.active = 0;
-
- if (codec_dai->playback.active == 0 &&
- codec_dai->capture.active == 0) {
- cpu_dai->active = codec_dai->active = 0;
+ if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) {
+ cpu_dai->playback.active--;
+ codec_dai->playback.active--;
+ } else {
+ cpu_dai->capture.active--;
+ codec_dai->capture.active--;
}
+
+ cpu_dai->active--;
+ codec_dai->active--;
codec->active--;
/* Muting the DAC suppresses artifacts caused during digital