[Sound-open-firmware] Generic power management layer

[Liam Girdwood]

On Thu, 2020-06-04 at 17:42 +0300, Daniel Baluta wrote:
> Hi Liam, Ranjani,
> 
> I am now looking at implementing the PM features
> on i.MX platforms and I have some questions.
> 
> 1) Where can I find some documentation about the SHIM
> layer PM related registers.
> 
> e.g apollolake/include/platform/lib/shim.h:
> 
> #define SHIM_PWRCTL              0
> 
> 2) I am looking if it makes sense to have some generic Xtensa
> code to put the core in reset at PM suspend. I have seen this
> registers:
> 
> arch/xtensa/include/xtensa/xdm-regs.h:
> #define PWRCTL_CORE_RESET
> 
> I wonder if this would make sense for Intel side? Is there any
> documentation
> about the PM states of HIfi DSP in Intel integrations?

I think Marcin did some PM docs on sof-docs, on CC now.

Liam
> 
> thanks,
> Daniel.
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