[alsa-devel] [PATCH] ASoC: Intel: Bsw: Read sst DSP DMA pointer after period elapse occurs

[Mark Brown]

On Sun, Aug 16, 2015 at 11:12:25PM -0700, yang.a.fang at intel.com wrote:

> We should not read sst hw_ptr and pcm_delay in sst_platform_pcm_pointer
> Since it will be ricky if sst_platform_pcm_pointer is called while dsp
> is updating the timestamp.Now read sst hw_ptr after period elapse
> interrupt occurs.

So I guess there's still some risk that we could run into problems here
if we take too long to service the interrupt and/or the period is very
short?  Is there anything we can do to improve that?
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