Re: [PATCH] Fixup ahci suspend / resume

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On Tue, Feb 28 2006, Jeff Garzik wrote:
> Jens Axboe wrote:
> >Upstream 2.6.x certainly _does_ care about suspend/resume! To me, this
> >patch seems simple enough to be included. It's little more than
> >splitting the register init out form the port_stop/start functions and
> >calling them on resume/suspend appropriately.
> 
> Upstream _libata_ doesn't care much about suspend/resume.  Officially, 
> its a work in progress with major pieces -- your patch and ACPI -- still 
> missing.

Eh my patch is not missing, it's been merged since the start of
2.6.16-rc. The acpi patch is still missing, however that's not required
on all machines. So SATA suspend should work now, at least on ata_piix
which is the only driver that currently enables it.

For 2.6.15 I agree, we don't care about suspend since it basically
cannot work. That's not the case for 2.6.16 though.

> Further, good improvements covering some of the changes in Hannes' patch 
> are already in #upstream.
> 
> Thus, it's more work than its worth to care about the patch as-is.  It 
> should be redone against #upstream, which is where all suspend/resume 
> development is occurring.

I'm sure Hannes will regenerate against upstream as well if necessary,
however that depends on when this should be applied.

-- 
Jens Axboe

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