Re: [PATCH 2/8] introduce the device async action mechanism

[Zhang Rui]

On Mon, 2009-07-20 at 06:16 +0800, Pavel Machek wrote:
> Hi!
> 
> > 
> > that's not enough.
> > ???For examples,
> > ACPI battery and EC are independent devices, but EC must be resumed
> > before battery because battery driver may access some EC address space
> > during resume time.
> 
> Yes, but those dependencies should be pulled from driver tree, not
> adding separate dependencies infrastructure.
> 
Sorry, ïthe problem I described above is wrong.
We just disable the EC interrupt mode in S3, but it still works.
Battery can access EC address space before EC resumed, in low speed.

ï
> 
> > > In particular, we have to make sure that parent devices will not be suspended
> > > until all of their children have been suspended and children devices will not
> > > be resumed before the parents.
> > 
this is right.

thanks,
rui

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