[alsa-devel] ASoC suspend resume question

[Mark Brown]

On Tue, May 12, 2015 at 07:08:13PM -0700, Ben Zhang wrote:

> I have a question about the design of ASoC suspend/resume path. Who
> should call snd_soc_suspend() and snd_soc_resume()?

> They are part of the soc-audio driver's dev_pm_ops, but some ASoC
> platform drivers also calls them. For example,

> hsw_pcm_prepare() in sound/soc/intel/haswell/sst-haswell-pcm.c
> sst_soc_prepare() in sound/soc/intel/atom/sst-mfld-platform-pcm.c

The machine driver needs to ensure that they are called.  If it has
nothing specific it needs to do it can just provide them as ops
directly, or it can call them from within its own suspend and resume
calls.  No new systems should be using the soc-audio device.
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