geode: Update OLPC power management

Andres Salomon dilinger at laptop.org
Mon Mar 5 12:16:05 EST 2007


Jordan Crouse wrote:
> On 04/03/07 08:14 -0800, Greg KH wrote:
>> On Tue, Apr 09, 2002 at 08:12:43PM +0000, Jordan Crouse wrote:
>>
>> I'll be glad to create a simple new bus type for you if you want, or I
>> can look into the real solution of multiple pci drivers.  The former
>> will benifit only this project, while the later benifits all of the
>> kernel community...
> 
> I prefer the second option - we have gone to a lot of work to make sure
> that PCI virtualization works for the Geode, and it does for the most part
> (USB and audio are two good examples of that).   I would like to stay true
> to the PCI model if at all possible.
> 
> I'll look into the multiple PCI driver solution as well - that seems like
> the right way to go.  


As do I.


> 
> I haven't gotten into it - so I don't know how long it will take to hack
> together a reasonable solution.  And time is of the essence - we have
> people chomping at the bit to start power management work.  They don't 
> really *need* a working smbus and MFGPT to resume, assuming that we don't
> use nohz and the display (i.e. - resume to a serial console), though I 
> think that people will want to go that route pretty quickly. 
> 
> Andres - its your kernel - what do you think?  Do we suffer without the
> smbus and MFGPT for a few weeks, or do we check in this code and revert 
> it later when we get a better solution? 


I'm fine checking it in and reverting it later, so long as it doesn't
keep us from actually implementing support for having multiple PCI
drivers binding to devices.



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