From: Ulf Hansson <ulf.hansson@linaro.org>
To: "Rafael J. Wysocki" <rjw@rjwysocki.net>,
Kevin Hilman <khilman@kernel.org>,
Ulf Hansson <ulf.hansson@linaro.org>,
linux-pm@vger.kernel.org
Cc: Len Brown <len.brown@intel.com>, Pavel Machek <pavel@ucw.cz>,
Geert Uytterhoeven <geert+renesas@glider.be>,
Lina Iyer <lina.iyer@linaro.org>,
Axel Haslam <ahaslam@baylibre.com>,
Marek Szyprowski <m.szyprowski@samsung.com>,
Jon Hunter <jonathanh@nvidia.com>,
Andy Gross <andy.gross@linaro.org>,
Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Subject: [PATCH 1/4] PM / Domains: Remove redundant call to pm_request_idle() in genpd
Date: Tue, 17 May 2016 13:41:33 +0200 [thread overview]
Message-ID: <1463485296-22742-2-git-send-email-ulf.hansson@linaro.org> (raw)
In-Reply-To: <1463485296-22742-1-git-send-email-ulf.hansson@linaro.org>
The PM core increases the runtime PM usage count at the system PM prepare
phase. Later when the system has resumed and the ->complete() callback has
been invoked, it drops the usage count. In this way, it intentionally
prevents runtime PM suspend for the device throughout this period.
For this reason, let's remove the call to pm_request_idle() from within
genpd's ->complete() calllback as it's redundant.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
drivers/base/power/domain.c | 1 -
1 file changed, 1 deletion(-)
diff --git a/drivers/base/power/domain.c b/drivers/base/power/domain.c
index 658eb1b..60a9971 100644
--- a/drivers/base/power/domain.c
+++ b/drivers/base/power/domain.c
@@ -938,7 +938,6 @@ static void pm_genpd_complete(struct device *dev)
pm_generic_complete(dev);
pm_runtime_set_active(dev);
pm_runtime_enable(dev);
- pm_request_idle(dev);
}
/**
--
1.9.1
next prev parent reply other threads:[~2016-05-17 11:41 UTC|newest]
Thread overview: 21+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-05-17 11:41 [PATCH 0/4] PM / Domains / Runtime: Optimize device system PM when using genpd Ulf Hansson
2016-05-17 11:41 ` Ulf Hansson [this message]
2016-05-23 21:25 ` [PATCH 1/4] PM / Domains: Remove redundant call to pm_request_idle() in genpd Kevin Hilman
2016-05-24 6:19 ` Ulf Hansson
2016-05-17 11:41 ` [PATCH 2/4] PM / Runtime: Prevent re-resuming devices in pm_runtime_force_resume() Ulf Hansson
2016-05-23 21:30 ` Kevin Hilman
2016-05-24 6:30 ` Ulf Hansson
2016-05-24 18:31 ` Kevin Hilman
2016-05-17 11:41 ` [PATCH 3/4] PM / Domains: Allow runtime PM during system PM phases Ulf Hansson
2016-05-23 23:06 ` Kevin Hilman
2016-05-24 6:40 ` Ulf Hansson
2016-05-17 11:41 ` [PATCH 4/4] PM / Runtime: Defer resuming of the device in pm_runtime_force_resume() Ulf Hansson
2016-05-23 23:15 ` Kevin Hilman
2016-05-24 6:51 ` Ulf Hansson
2016-05-24 18:34 ` Kevin Hilman
2016-06-28 16:26 ` Geert Uytterhoeven
2016-06-29 0:26 ` Rafael J. Wysocki
2016-06-29 17:30 ` Ulf Hansson
2016-07-04 13:57 ` Geert Uytterhoeven
2016-06-30 22:40 ` Kevin Hilman
2016-07-04 13:53 ` Geert Uytterhoeven
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