On Tue, 12 Jun 2007 13:40:15 +0900
Tejun Heo <[email protected]> wrote:
> I don't think the end result will vary in any significant way. My
> biggest argument for sw implementation is it can be used for other
> controllers.
What I had in mind when I created the new port operation "enable_pm"
was that other controllers (besides the ahci controller) could define their
own method of enabling power management. Maybe for non-ahci controllers this
is a software based solution which uses generic SATA dipm/hipm stuff and
polling.
See patch 2/3 of this series for the implementation of this.
Kristen
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