Re: Resume only part of device tree?

[Benjamin Herrenschmidt]

On Thu, 2004-03-04 at 07:03, Nigel Cunningham wrote:
> Hi all.
> 
> Is there any existing code in the device model that supports resuming a
> part of the device tree? For Suspend2, I'm wanting to resume storage
> devices (and their parents) part way through resuming, and other drivers
> later.

What is your exact goal ? Not resuming all devices when writing the
state to the swap partition ?

You really need to resume it all at this point. However, the optimisation
that can be done is for some drivers to not put the HW to sleep on a
swsusp transition, only freeze the state. I did something like that in
IDE though that doesn't always work well due our "state" paremeter passed
down to drivers not beeing consistent.

Ben.


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