tree e9a4a27c24623852ddf6a1a8b9f7b0bf5dbeb943
parent e163a1994ed325200c37226298e8eca41225ef6a
author Helen Zeng <xiaoyunz@codeaurora.org> 1339354229 -0700
committer Helen Zeng <xiaoyunz@codeaurora.org> 1340299594 -0700

ASoc: soc-pcm: Open/close share channel once if it is used by two streams

- During voice and normal recording concurrency case, both voice
and recording streams share the same tx channel. If one stream
already opens the tx channel, another stream will get error when
trying to open the same channel again. If one stream ends and closes
the channel, but another stream will lose the sound if it's still using
it.
- To prevent the above issues, only send SND_SOC_DAPM_STREAM_START event
when capture active count is one. And send SND_SOC_DAPM_STREAM_STOP event
when capture active count is zero.

Change-Id: Ic6dcd5d8d1949c2b96d46915a4399a454075fbb7
CRs-Fixed: 357022
Signed-off-by: Helen Zeng <xiaoyunz@codeaurora.org>