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 2/4] PM / Runtime: Prevent re-resuming devices in pm_runtime_force_resume()
Date: Tue, 17 May 2016 13:41:34 +0200 [thread overview]
Message-ID: <1463485296-22742-3-git-send-email-ulf.hansson@linaro.org> (raw)
In-Reply-To: <1463485296-22742-1-git-send-email-ulf.hansson@linaro.org>
If the device has already been resumed before pm_runtime_force_resume() is
invoked, prevent calling the ->runtime_resume() callback for the device,
as it's not the expected behaviour from the subsystem/driver.
Signed-off-by: Ulf Hansson <ulf.hansson@linaro.org>
---
drivers/base/power/runtime.c | 3 +++
1 file changed, 3 insertions(+)
diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c
index b746904..09e4eb1 100644
--- a/drivers/base/power/runtime.c
+++ b/drivers/base/power/runtime.c
@@ -1506,6 +1506,9 @@ int pm_runtime_force_resume(struct device *dev)
goto out;
}
+ if (!pm_runtime_status_suspended(dev))
+ goto out;
+
ret = pm_runtime_set_active(dev);
if (ret)
goto out;
--
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 ` [PATCH 1/4] PM / Domains: Remove redundant call to pm_request_idle() in genpd Ulf Hansson
2016-05-23 21:25 ` Kevin Hilman
2016-05-24 6:19 ` Ulf Hansson
2016-05-17 11:41 ` Ulf Hansson [this message]
2016-05-23 21:30 ` [PATCH 2/4] PM / Runtime: Prevent re-resuming devices in pm_runtime_force_resume() 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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