Messages in this thread | | | Subject | Re: Resume only part of device tree? | From | Benjamin Herrenschmidt <> | Date | Thu, 04 Mar 2004 09:40:23 +1100 |
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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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