From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: Linux PM mailing list <linux-pm@lists.linux-foundation.org>
Cc: LKML <linux-kernel@vger.kernel.org>,
Kevin Hilman <khilman@ti.com>,
Alan Stern <stern@rowland.harvard.edu>,
MyungJoo Ham <myungjoo.ham@samsung.com>,
Chanwoo Choi <cw00.choi@samsung.com>,
Paul Walmsley <paul@pwsan.com>, Greg KH <gregkh@suse.de>,
Magnus Damm <magnus.damm@gmail.com>
Subject: [PATCH 5/5 v1] PM / Domains: Do not restore all devices on power off error
Date: Wed, 6 Jul 2011 23:01:21 +0200 [thread overview]
Message-ID: <201107062301.22277.rjw@sisk.pl> (raw)
In-Reply-To: <201107062248.35586.rjw@sisk.pl>
From: Rafael J. Wysocki <rjw@sisk.pl>
Since every device in a PM domain has its own need_restore
flag, which is set by __pm_genpd_save_device(), there's no need to
walk the domain's device list and restore all devices on an error
from one of the drivers' .runtime_suspend() callbacks.
Signed-off-by: Rafael J. Wysocki <rjw@sisk.pl>
---
drivers/base/power/domain.c | 3 ---
1 file changed, 3 deletions(-)
Index: linux-2.6/drivers/base/power/domain.c
===================================================================
--- linux-2.6.orig/drivers/base/power/domain.c
+++ linux-2.6/drivers/base/power/domain.c
@@ -299,9 +299,6 @@ static int pm_genpd_poweroff(struct gene
return 0;
err_dev:
- list_for_each_entry_continue(dle, &genpd->dev_list, node)
- __pm_genpd_restore_device(dle, genpd);
-
genpd_set_active(genpd);
wake_up_all(&genpd->status_wait_queue);
next prev parent reply other threads:[~2011-07-06 21:01 UTC|newest]
Thread overview: 19+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-07-06 20:48 [PATCH 0/5 v1] PM / Domains: Generic PM domains improvements Rafael J. Wysocki
2011-07-06 20:50 ` [PATCH 1/5 v1] PM / Domains: Set device state to "active" during system resume Rafael J. Wysocki
2011-07-06 20:51 ` [PATCH 2/5 v1] PM / Domains: Make failing pm_genpd_prepare() clean up properly Rafael J. Wysocki
2011-07-06 20:53 ` [PATCH 3/5 v1] PM / Domains: Rework locking Rafael J. Wysocki
2011-07-08 10:21 ` [Update][PATCH 3/5] " Rafael J. Wysocki
2011-07-06 21:00 ` [PATCH 4/5 v1] PM / Domains: Allow callbacks to execute arbitrary runtime PM helpers Rafael J. Wysocki
2011-07-07 19:59 ` [Update][PATCH 4/5] PM / Domains: Allow callbacks to execute all " Rafael J. Wysocki
2011-07-06 21:01 ` Rafael J. Wysocki [this message]
2011-07-07 20:01 ` [Update][PATCH 5/5] PM / Domains: Do not restore all devices on power off error Rafael J. Wysocki
2011-07-06 21:08 ` [PATCH 0/5 v1] PM / Domains: Generic PM domains improvements Greg KH
2011-07-06 21:12 ` Rafael J. Wysocki
2011-07-10 8:59 ` [PATCH 0/6 v2] " Rafael J. Wysocki
2011-07-10 9:05 ` [PATCH 1/6 v2] PM / Domains: Set device state to "active" during system resume Rafael J. Wysocki
2011-07-10 9:06 ` [PATCH 2/6 v2] PM / Domains: Make failing pm_genpd_prepare() clean up properly Rafael J. Wysocki
2011-07-10 9:07 ` [PATCH 3/6 v2] PM / Domains: Do not execute device callbacks under locks Rafael J. Wysocki
2011-07-10 9:08 ` [PATCH 4/6 v2] PM / Domains: Allow callbacks to execute all runtime PM helpers Rafael J. Wysocki
2011-07-10 9:08 ` [PATCH 5/6 v2] PM / Domains: Do not restore all devices on power off error Rafael J. Wysocki
2011-07-10 9:09 ` [PATCH 6/6 v2] PM / Domains: Improve handling of wakeup devices during system suspend Rafael J. Wysocki
2011-07-10 12:29 ` [PATCH 7 v2] PM / Domains: Queue up power off work only if it is not pending Rafael J. Wysocki
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