ASoC: lpass-platform: Fix broken pcm data usage
authorSrinivas Kandagatla <srinivas.kandagatla@linaro.org>
Mon, 31 Oct 2016 11:25:43 +0000 (11:25 +0000)
committerMark Brown <broonie@kernel.org>
Mon, 31 Oct 2016 18:29:54 +0000 (12:29 -0600)
commit022d00ee0b55e6cd49048acadb9bf76c37e538d8
tree57a5059f93b72fbb9c1e3fd82bd2f2d56ed9f609
parent1001354ca34179f3db924eb66672442a173147dc
ASoC: lpass-platform: Fix broken pcm data usage

This patch fixes lpass-platform driver which was broken in v4.9-rc1.
lpass_pcm_data data structure holds information specific to stream.
Holding a single private pointer to it in global lpass_data
will not work, because it would be overwritten by for each pcm instance.

This code was breaking playback when we have both playback and capture
pcm streams, as playback settings are over written by capture settings.

Fix this by moving channel allocation logic out of pcm_new to pcm_open
so that we can store the stream specific information in private_data of
snd_pcm_runtime.

Fixes: 6adcbdcd4b6e ("ASoC: lpass-platform: don't use snd_soc_pcm_set_drvdata()")
Signed-off-by: Srinivas Kandagatla <srinivas.kandagatla@linaro.org>
Signed-off-by: Mark Brown <broonie@kernel.org>
sound/soc/qcom/lpass-platform.c
sound/soc/qcom/lpass.h