ppc32: Rework power management take #3

[Mickael Royer]

Hi Ben

> Ok, the patch is now getting "good enough" for wider testing. It applies
> on current "git" tree (or 2.6.12-rc6 when/if that is ever released).

I have just tested your patch with the 2.5.12-rc5-git5 on the new powerbook 12".
And yes, the suspend to disk works very well, even if X is running (I
report my problem with X and the suspend to disk with a 2.6.12-rc4 in
another discussion).
It is really good. 

Thanks for your good job Ben. 

Mickael

On 5/30/05, Benjamin Herrenschmidt <benh at kernel.crashing.org> wrote:
> Ok, the patch is now getting "good enough" for wider testing. It applies
> on current "git" tree (or 2.6.12-rc6 when/if that is ever released). It
> requires one other patch to be applied first:
> 
> http://gate.crashing.org/~benh/ppc32-remove-macserial.diff
> 
> The PM patch itself can be found at:
> 
> http://gate.crashing.org/~benh/ppc32-rework-pm.diff
> 
> This patch completely reworks both suspend-to-ram and suspend-to-disk
> support on PowerMac:
> 
>  - suspend-to-ram code is moved away from the via-pmu.c driver
>  - both suspend-to-disk & to-ram consolidated to use the same
> infrastructure and code base in a new pmac_pm.c file
>  - significants fixes & improvements to suspend-to-disk
>  - for now (may change), use the "refrigerator" with suspend-to-ram as
> well as suspend-to-disk. This may help make it a bit more robust vs.
> userland activity during the sleep process
>  - CONFIG_PMAC_PBOOK is gone. CONFIG_PMAC_MEDIABAY is new and controls
> wether the powerbook hostwap bay driver is included. The rest of bits
> formerly under CONFIG_PMAC_PBOOK control are now either always on
> (like /dev/pmu interface on PMU based machines) or dependent on other
> config options (like CONFIG_PM, CONFIG_PPC_PMAC, ...)
> 
> The patch will not be in 2.6.12 (though will probably apply on top of
> it). I aim for a 2.6.13 release, knowing that the patch changes a bunch
> of non-ppc-specific power management bits, and thus may need some time
> to be fully merged upstream.
> 
> 
> 
> 
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