Re: [RFC PATCH 1/6] ACPI: Introduce ACPI D3_COLD state support

[Zhang Rui]

On ä, 2012-02-17 at 23:23 +0100, Rafael J. Wysocki wrote:
> > Okay, agreed.
> > so how about this? _PR3 equals D3_HOT support.
> 
> Yes, I can agree with that. :-)
> 
> > > > Hmm, how about set D3_COLD support if _PR3 exists, but leave a warning
> > > > message if _OFF doesn't exist, for now?
> > > 
> > > I don't think we need to set D3_COLD support at all.  In fact, it is always
> > > supported (as I said, if all power resources used by a device are off, the
> > > device is in D3_COLD pretty much by definition).
> > > 
> > Yeah, but it seems that Linux uses ACPI_D3 for both ACPICA D3_HOT and D3
> > (off). I'm generating a patch to remove ACPI_D3_COLD and introduce
> > D3_HOT support in Linux kernel.
> 
> That's a good idea in my opinion.

Great.
Patch will be sent out later.

thanks,
rui

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