|| ||Tejun Heo <email@example.com>|
|| ||firstname.lastname@example.org, email@example.com, firstname.lastname@example.org,
|| ||[PATCHSET] [PATCHSET] new Power Management for libata, take 2|
|| ||Sat, 24 Jun 2006 20:30:18 +0900|
This is the second take of new-power-management patchset. Changes
from the last take are...
* Per-dev PM is now supported. Now generic device PM layer drives
whole PM sequence and libata port-wide PM does much less.
* Suspend is now sequential - ie. harddrives hanging off a controller
are spinned down one after another. Spinning down is pretty fast
and this doesn't make much difference.
* Resume is still done asynchronously but it also uses generic PM to
* sata_sil and sata_sil24 are fixed to perform PCI resume before
reinitializing the controller.
This patchset contains 15 patches.
#01-07 : preparation patches, misc updates & fixes
#08-11 : new core PM implementation
#12-15 : convert LLDs to use new PM
As before, ata_piix, sata_sil and sata_sil24 are converted. Both mem
and disk sleeps are tested and verifed to work on the following
* On P5LD2 + latest BIOS
- onboard ICH7R in ata_piix mode
- sil3112 PCI card
- sil3114 PCI card
- sil3124 PCI-x card on a PCI slot
- sil3132 PCI-e card
* On Fujitsu lifebook P7120 (+ PATA enabled + patch for PCI ID)
- onboard ICH6M in ata_piix mode
- sil3112 PCMCIA card
As in the last take, most of PM operations are performed by EH and
fully synchronized with all other operations. Putting to sleep and
waking up should be safe under any circumstances as far as libata is
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