[PATCH 06/14] ASoC: SOF: add a power status IPC

[Mark Brown]

On Mon, Mar 23, 2020 at 10:31:02AM +0100, Guennadi Liakhovetski wrote:

> Ok, understand, but do you see any problems with this specific use case? 
> Thinking about possible replacements - it isn't a case for a ref-count, 
> because it isn't a get-put scenario. We really just need to count a 
> specific event - DSP reboots. It can be the case that this counter doesn't 
> need to be atomic at all. When it is read, the DSP is guaranteed to be up 
> and running - I think. So no race would be possible. I can try to think 
> about this more carefully and maybe make it a normal unprotected counter. 
> But I don't think it has to be protected even better than what these 
> patches are doing.

I think at the very least it probably needs more documentation in the
code since I don't recall being able to work out what it was supposed to
be doing quickly.
-------------- next part --------------
A non-text attachment was scrubbed...
Name: signature.asc
Type: application/pgp-signature
Size: 488 bytes
Desc: not available
URL: <http://mailman.alsa-project.org/pipermail/alsa-devel/attachments/20200323/d31df70f/attachment.sig>