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From: Tony Lindgren <tony@atomide.com>
To: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>,
	Alan Stern <stern@rowland.harvard.edu>
Cc: Andreas Fenkart <afenkart@gmail.com>,
	Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
	Felipe Balbi <balbi@ti.com>,
	Huiquan Zhong <huiquan.zhong@intel.com>,
	Kevin Hilman <khilman@kernel.org>, NeilBrown <neilb@suse.de>,
	Mika Westerberg <mika.westerberg@linux.intel.com>,
	Nishanth Menon <nm@ti.com>,
	Peter Hurley <peter@hurleysoftware.com>,
	Sebastian Andrzej Siewior <bigeasy@linutronix.de>,
	Ulf Hansson <ulf.hansson@linaro.org>,
	Thomas Gleixner <tglx@linutronix.de>,
	linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org,
	linux-serial@vger.kernel.org, linux-omap@vger.kernel.org
Subject: [PATCH 1/5] PM / Runtime: Update last_busy in rpm_resume
Date: Wed, 13 May 2015 16:36:32 -0700	[thread overview]
Message-ID: <1431560196-5722-2-git-send-email-tony@atomide.com> (raw)
In-Reply-To: <1431560196-5722-1-git-send-email-tony@atomide.com>

If we don't update last_busy in rpm_resume, devices can go back
to sleep immediately after resume. This happens at least in
cases where the device has been powered off and does not have
any interrupt pending until there's something in the FIFO.

Signed-off-by: Tony Lindgren <tony@atomide.com>
---
 drivers/base/power/runtime.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/base/power/runtime.c b/drivers/base/power/runtime.c
index 5070c4f..4ffe4a2 100644
--- a/drivers/base/power/runtime.c
+++ b/drivers/base/power/runtime.c
@@ -741,6 +741,7 @@ static int rpm_resume(struct device *dev, int rpmflags)
 	} else {
  no_callback:
 		__update_runtime_status(dev, RPM_ACTIVE);
+		pm_runtime_mark_last_busy(dev);
 		if (parent)
 			atomic_inc(&parent->power.child_count);
 	}
-- 
2.1.4


  reply	other threads:[~2015-05-13 23:56 UTC|newest]

Thread overview: 43+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2015-05-13 23:36 [PATCHv3 0/5] Linux generic wakeirq handling Tony Lindgren
2015-05-13 23:36 ` Tony Lindgren [this message]
2015-05-20  7:36   ` [PATCH 1/5] PM / Runtime: Update last_busy in rpm_resume Ulf Hansson
2015-05-13 23:36 ` [PATCH 2/5] PM / Wakeirq: Add automated device wake IRQ handling Tony Lindgren
2015-05-14  2:06   ` Felipe Balbi
2015-05-14 15:51     ` Alan Stern
2015-05-14 15:54       ` Felipe Balbi
2015-05-14 15:59     ` Tony Lindgren
2015-05-14 16:09       ` Felipe Balbi
2015-05-14 16:28         ` Tony Lindgren
2015-05-14 17:51           ` Tony Lindgren
2015-05-14 21:15       ` Tony Lindgren
2015-05-14 21:25         ` Felipe Balbi
2015-05-14 22:00         ` Rafael J. Wysocki
2015-05-14 21:59           ` Tony Lindgren
2015-05-15 22:25             ` Tony Lindgren
2015-05-16  1:56               ` Felipe Balbi
2015-05-18 22:05                 ` Tony Lindgren
2015-05-18 23:44                   ` Tony Lindgren
2015-05-19 14:04                     ` Rafael J. Wysocki
2015-05-19 14:26                       ` Rafael J. Wysocki
2015-05-19 15:09                         ` Tony Lindgren
2015-05-19 18:18                           ` Tony Lindgren
2015-05-19 23:01                             ` Rafael J. Wysocki
2015-05-19 22:41                               ` Thomas Gleixner
2015-05-19 23:31                                 ` Rafael J. Wysocki
2015-05-19 23:27                                   ` Tony Lindgren
2015-05-20  0:25                                     ` Rafael J. Wysocki
2015-05-20  2:10                                       ` Tony Lindgren
2015-05-21  0:54                                         ` Rafael J. Wysocki
2015-05-21  0:35                                           ` Tony Lindgren
2015-05-21  1:40                                           ` Felipe Balbi
2015-05-19 15:15                       ` Tony Lindgren
2015-05-13 23:36 ` [PATCH 3/5] serial: omap: Switch wake-up interrupt to generic wakeirq Tony Lindgren
2015-05-28 14:56   ` Tony Lindgren
2015-05-31  7:16     ` Greg Kroah-Hartman
2015-06-01 22:05       ` Tony Lindgren
2015-05-13 23:36 ` [PATCH 4/5] serial: 8250_omap: Move " Tony Lindgren
2015-05-13 23:36 ` [PATCH 5/5] mmc: omap_hsmmc: Change wake-up interrupt to use " Tony Lindgren
2015-05-25  8:38   ` Ulf Hansson
2015-05-27 22:42     ` Rafael J. Wysocki
2015-05-27 22:45       ` Tony Lindgren
2015-05-28 14:36         ` Tony Lindgren

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