From: Tejun Heo <htejun@gmail.com>
To: "zhao, forrest" <forrest.zhao@intel.com>
Cc: jgarzik@pobox.com, lkml@rtr.ca, axboe@suse.de,
alan@lxorguk.ukuu.org.uk, linux-ide@vger.kernel.org
Subject: Re: [PATCH 06/10] libata: implement new Power Management framework
Date: Tue, 13 Jun 2006 18:00:19 +0900 [thread overview]
Message-ID: <448E7EA3.8070707@gmail.com> (raw)
In-Reply-To: <1150186634.7132.34.camel@forrest26.sh.intel.com>
zhao, forrest wrote:
> Is it possible to add a callback in ata_pci_device_suspend() to do
> controller-level operation before calling pci_save_state()......?
> One possible solution is to put this callback into a structure together
> with host_set.
> Otherwise user-defined ahci_pci_device_suspend() will duplicate most
> code of ata_pci_device_suspend().
If a LLD wants to do controller specific things, define its own
device_suspend/resume() routines and call ata_pci_device_*() from those
functions after doing controller-specific stuff. Please read how
sil_pci_device_resume() and sil24_pci_device_resume() are defined later
in this patchset.
If ata_pci_device_suspend/resume() do things incorrect for a
controller(), export ata_host_set_suspend/resume() and call those from
LLD's suspend/resume() routines.
--
tejun
next prev parent reply other threads:[~2006-06-13 9:00 UTC|newest]
Thread overview: 39+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-12 15:50 [PATCHSET] new Power Management for libata Tejun Heo
2006-06-12 15:50 ` [PATCH 01/10] libata: power down controller only on PMSG_SUSPEND Tejun Heo
2006-06-12 16:32 ` Jeff Garzik
2006-06-13 2:20 ` Tejun Heo
2006-06-12 15:50 ` [PATCH 03/10] libata: move ata_do_simple_cmd() right below ata_exec_internal() Tejun Heo
2006-06-12 15:50 ` [PATCH 02/10] libata: kill per-device PM Tejun Heo
2006-06-12 15:50 ` [PATCH 04/10] libata: update ata_do_simple_cmd() Tejun Heo
2006-06-12 15:50 ` [PATCH 09/10] sata_sil24: separate out sil24_init_controller() Tejun Heo
2006-06-12 15:50 ` [PATCH 10/10] sata_sil24: add suspend/sleep support Tejun Heo
2006-06-12 15:50 ` [PATCH 08/10] sata_sil: " Tejun Heo
2006-06-12 15:50 ` [PATCH 07/10] sata_sil: separate out sil_init_controller() Tejun Heo
2006-06-12 15:50 ` [PATCH 05/10] libata: implement new EH action ATA_EH_SPINUP Tejun Heo
2006-06-14 1:18 ` Jeff Garzik
2006-06-14 15:02 ` Tejun Heo
2006-06-14 15:25 ` Alan Cox
2006-06-12 15:50 ` [PATCH 06/10] libata: implement new Power Management framework Tejun Heo
2006-06-12 16:34 ` Alan Cox
2006-06-13 2:08 ` Tejun Heo
2006-06-13 6:25 ` zhao, forrest
2006-06-13 8:56 ` Tejun Heo
2006-06-13 11:59 ` Jeff Garzik
2006-06-13 8:17 ` zhao, forrest
2006-06-13 9:00 ` Tejun Heo [this message]
2006-06-13 8:54 ` zhao, forrest
2006-06-13 9:15 ` Tejun Heo
2006-06-13 8:37 ` zhao, forrest
2006-06-14 7:56 ` zhao, forrest
2006-06-14 13:29 ` Tejun Heo
2006-06-15 1:33 ` zhao, forrest
2006-06-15 3:41 ` Tejun Heo
2006-06-12 15:57 ` [PATCHSET] new Power Management for libata Tejun Heo
2006-06-13 6:28 ` zhao, forrest
2006-06-13 9:09 ` rolled up patch for " Tejun Heo
2006-06-13 10:38 ` Jens Axboe
2006-06-19 5:46 ` Jens Axboe
2006-06-14 1:25 ` [PATCHSET] " Jeff Garzik
2006-06-14 13:46 ` Tejun Heo
2006-06-19 5:18 ` zhao, forrest
2006-06-19 8:46 ` Tejun Heo
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