From: Tejun Heo <htejun@gmail.com>
To: jgarzik@pobox.com, lkml@rtr.ca, axboe@suse.de,
forrest.zhao@intel.com, alan@lxorguk.ukuu.org.uk,
linux-ide@vger.kernel.org
Cc: Tejun Heo <htejun@gmail.com>
Subject: [PATCH 01/10] libata: power down controller only on PMSG_SUSPEND
Date: Tue, 13 Jun 2006 00:50:28 +0900 [thread overview]
Message-ID: <11501274283030-git-send-email-htejun@gmail.com> (raw)
In-Reply-To: <11501274284082-git-send-email-htejun@gmail.com>
The controller only needs to be powered down on PMSG_SUSPEND. Skip
powering down for all other messages. This makes disk suspend prep
cycle more efficient and helps controllers which have problems waking
up from D3hot without intervening power removal.
Signed-off-by: Tejun Heo <htejun@gmail.com>
---
drivers/scsi/libata-core.c | 5 ++++-
1 files changed, 4 insertions(+), 1 deletions(-)
85016ad86323924d10dc99ac9d7e9e5c0b967b8e
diff --git a/drivers/scsi/libata-core.c b/drivers/scsi/libata-core.c
index 9a3bd15..51d3b4b 100644
--- a/drivers/scsi/libata-core.c
+++ b/drivers/scsi/libata-core.c
@@ -5661,7 +5661,10 @@ int ata_pci_device_suspend(struct pci_de
{
pci_save_state(pdev);
pci_disable_device(pdev);
- pci_set_power_state(pdev, PCI_D3hot);
+
+ if (state.event == PM_EVENT_SUSPEND)
+ pci_set_power_state(pdev, PCI_D3hot);
+
return 0;
}
--
1.3.2
next prev parent reply other threads:[~2006-06-12 15:50 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 03/10] libata: move ata_do_simple_cmd() right below ata_exec_internal() Tejun Heo
2006-06-12 15:50 ` Tejun Heo [this message]
2006-06-12 16:32 ` [PATCH 01/10] libata: power down controller only on PMSG_SUSPEND Jeff Garzik
2006-06-13 2:20 ` Tejun Heo
2006-06-12 15:50 ` [PATCH 04/10] libata: update ata_do_simple_cmd() Tejun Heo
2006-06-12 15:50 ` [PATCH 02/10] libata: kill per-device PM Tejun Heo
2006-06-12 15:50 ` [PATCH 08/10] sata_sil: add suspend/sleep support Tejun Heo
2006-06-12 15:50 ` [PATCH 10/10] sata_sil24: " 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 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
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 15:50 ` [PATCH 07/10] sata_sil: separate out sil_init_controller() 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
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=11501274283030-git-send-email-htejun@gmail.com \
--to=htejun@gmail.com \
--cc=alan@lxorguk.ukuu.org.uk \
--cc=axboe@suse.de \
--cc=forrest.zhao@intel.com \
--cc=jgarzik@pobox.com \
--cc=linux-ide@vger.kernel.org \
--cc=lkml@rtr.ca \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox;
as well as URLs for NNTP newsgroup(s).