Re: [PATCH 0/3] ata port runtime power management support

From: Tejun Heo
Date: Thu Nov 03 2011 - 10:59:28 EST


Hello,

On Thu, Nov 3, 2011 at 7:47 AM, Lin Ming <ming.m.lin@xxxxxxxxx> wrote:
>> > There will be ACPI firmware which supports ata port runtime D3Cold.
>> > To enable ata port runtime PM is the first step.
>>
>> libata can already turn off unused ports although it wouldn't go as
>> far as putting the whole controller into D3.
>
> At runtime?

Nope, I meant unoccupied (no device attached). IIRC it's part of the LPM code.

--
tejun
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