From: Ohad Ben-Cohen <ohad@wizery.com>
To: Alan Stern <stern@rowland.harvard.edu>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>,
linux-pm@lists.linux-foundation.org,
Johannes Berg <johannes@sipsolutions.net>,
linux-wireless@vger.kernel.org, linux-mmc@vger.kernel.org,
Ido Yariv <ido@wizery.com>,
Kevin Hilman <khilman@deeprootsystems.com>
Subject: Re: [linux-pm] subtle pm_runtime_put_sync race and sdio functions
Date: Wed, 29 Dec 2010 10:01:40 +0200 [thread overview]
Message-ID: <AANLkTi=QT1thWxy94=imJhbbcXQ1CD36=PnkAyaaA6Hj@mail.gmail.com> (raw)
In-Reply-To: <Pine.LNX.4.44L0.1012281541580.22998-100000@netrider.rowland.org>
On Tue, Dec 28, 2010 at 11:46 PM, Alan Stern <stern@rowland.harvard.edu> wrote:
> Similarly, during system suspend mmc_suspend_host() should be
> responsible for doing all the necessary power-down operations. Runtime
> PM is completely out of the picture at this time. And this should be
> independent of mac80211 -- in fact, the card should be powered down
> appropriately even if the kernel doesn't have a mac80211 layer.
And it is.
But in order to boot the firmware on resume, we need to reset the
device. And if system suspend has been cancelled before
mmc_power_off() was invoked, we will not be able to. So, in this case
too, the driver will have to power the device off.
It all really boils down to the same solution - we will always have to
bypass runtime PM and directly control the power of the device.
next prev parent reply other threads:[~2010-12-29 8:02 UTC|newest]
Thread overview: 179+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-12-09 23:37 subtle pm_runtime_put_sync race and sdio functions Ohad Ben-Cohen
2010-12-10 0:00 ` Rafael J. Wysocki
2010-12-10 0:00 ` [linux-pm] " Rafael J. Wysocki
2010-12-10 17:24 ` Alan Stern
2010-12-10 17:24 ` [linux-pm] " Alan Stern
2010-12-10 22:01 ` Rafael J. Wysocki
2010-12-10 22:01 ` [linux-pm] " Rafael J. Wysocki
2010-12-10 23:02 ` Ohad Ben-Cohen
2010-12-10 23:02 ` [linux-pm] " Ohad Ben-Cohen
2010-12-10 22:59 ` Ohad Ben-Cohen
2010-12-10 22:59 ` [linux-pm] " Ohad Ben-Cohen
2010-12-11 1:17 ` Ohad Ben-Cohen
2010-12-11 14:53 ` Alan Stern
2010-12-11 1:17 ` Ohad Ben-Cohen
2010-12-11 14:50 ` Alan Stern
2010-12-18 13:29 ` Ohad Ben-Cohen
2010-12-18 13:29 ` [linux-pm] " Ohad Ben-Cohen
2010-12-18 14:16 ` David Vrabel
2010-12-18 15:12 ` Ohad Ben-Cohen
2010-12-18 15:12 ` Ohad Ben-Cohen
2010-12-18 14:16 ` David Vrabel
2010-12-18 15:07 ` [linux-pm] " Rafael J. Wysocki
2010-12-18 16:00 ` Ohad Ben-Cohen
2010-12-18 16:00 ` [linux-pm] " Ohad Ben-Cohen
2010-12-18 16:40 ` Johannes Berg
2010-12-18 19:08 ` Ohad Ben-Cohen
2010-12-18 19:08 ` Ohad Ben-Cohen
2010-12-18 21:30 ` Alan Stern
2010-12-18 21:30 ` Alan Stern
2010-12-18 22:57 ` Rafael J. Wysocki
2010-12-18 22:57 ` [linux-pm] " Rafael J. Wysocki
2010-12-18 21:30 ` Alan Stern
2010-12-18 22:52 ` Rafael J. Wysocki
2010-12-18 22:52 ` [linux-pm] " Rafael J. Wysocki
2010-12-18 19:08 ` Ohad Ben-Cohen
2010-12-18 21:29 ` [linux-pm] " Alan Stern
2010-12-18 21:29 ` Alan Stern
2010-12-18 21:29 ` Alan Stern
2010-12-18 22:50 ` Rafael J. Wysocki
2010-12-18 22:50 ` [linux-pm] " Rafael J. Wysocki
2010-12-18 16:40 ` Johannes Berg
2010-12-18 22:47 ` [linux-pm] " Rafael J. Wysocki
2010-12-18 22:47 ` Rafael J. Wysocki
2010-12-19 7:48 ` Ohad Ben-Cohen
2010-12-19 7:48 ` Ohad Ben-Cohen
2010-12-19 7:48 ` Ohad Ben-Cohen
2010-12-19 10:22 ` Rafael J. Wysocki
2010-12-19 10:22 ` [linux-pm] " Rafael J. Wysocki
2010-12-20 3:37 ` Alan Stern
2010-12-20 3:37 ` Alan Stern
2010-12-20 21:17 ` Rafael J. Wysocki
2010-12-21 0:57 ` Alan Stern
2010-12-21 0:57 ` Alan Stern
2010-12-21 21:31 ` Rafael J. Wysocki
2010-12-22 1:42 ` Alan Stern
2010-12-22 1:42 ` Alan Stern
2010-12-22 12:29 ` Rafael J. Wysocki
2010-12-22 12:29 ` Rafael J. Wysocki
2011-01-26 23:28 ` Kevin Hilman
2011-01-26 23:28 ` Kevin Hilman
2011-01-27 18:13 ` Alan Stern
2011-01-27 18:13 ` [linux-pm] " Alan Stern
2011-01-27 18:13 ` Alan Stern
2011-01-27 19:22 ` Kevin Hilman
2011-01-27 19:22 ` [linux-pm] " Kevin Hilman
2011-01-27 19:22 ` Kevin Hilman
2011-01-27 19:49 ` Alan Stern
2011-01-27 19:49 ` [linux-pm] " Alan Stern
2011-01-27 19:49 ` Alan Stern
2011-01-27 20:15 ` Kevin Hilman
2011-01-27 20:15 ` [linux-pm] " Kevin Hilman
2011-01-27 20:15 ` Kevin Hilman
2011-01-27 22:18 ` Vitaly Wool
2011-01-27 22:18 ` Vitaly Wool
2011-01-27 22:18 ` Vitaly Wool
2011-01-27 23:21 ` Rafael J. Wysocki
2011-01-27 23:21 ` [linux-pm] " Rafael J. Wysocki
2011-01-27 23:49 ` Kevin Hilman
2011-01-27 23:49 ` [linux-pm] " Kevin Hilman
2011-01-27 23:11 ` Rafael J. Wysocki
2011-01-27 23:11 ` [linux-pm] " Rafael J. Wysocki
2011-01-27 18:20 ` Vitaly Wool
2011-01-27 18:20 ` [linux-pm] " Vitaly Wool
2011-01-27 18:20 ` Vitaly Wool
2011-01-27 18:54 ` Kevin Hilman
2011-01-27 18:54 ` [linux-pm] " Kevin Hilman
2010-12-22 12:29 ` Rafael J. Wysocki
2010-12-22 1:42 ` Alan Stern
2010-12-21 21:31 ` Rafael J. Wysocki
2010-12-21 0:57 ` Alan Stern
2010-12-20 21:17 ` Rafael J. Wysocki
2010-12-20 3:37 ` Alan Stern
2010-12-21 22:23 ` Kevin Hilman
2010-12-21 22:23 ` [linux-pm] " Kevin Hilman
2010-12-22 1:48 ` Alan Stern
2010-12-22 1:48 ` Alan Stern
2010-12-22 1:48 ` Alan Stern
2010-12-23 7:51 ` Ohad Ben-Cohen
2010-12-23 7:51 ` [linux-pm] " Ohad Ben-Cohen
2010-12-23 16:03 ` Alan Stern
2010-12-23 16:03 ` [linux-pm] " Alan Stern
2010-12-23 16:03 ` Alan Stern
2010-12-25 7:34 ` Ohad Ben-Cohen
2010-12-25 7:34 ` Ohad Ben-Cohen
2010-12-25 16:21 ` Alan Stern
2010-12-25 16:21 ` Alan Stern
2010-12-25 20:58 ` Ohad Ben-Cohen
2010-12-25 20:58 ` [linux-pm] " Ohad Ben-Cohen
2010-12-25 20:58 ` Ohad Ben-Cohen
2010-12-25 21:50 ` Vitaly Wool
2010-12-25 21:50 ` [linux-pm] " Vitaly Wool
2010-12-26 5:27 ` Ohad Ben-Cohen
2010-12-26 5:27 ` [linux-pm] " Ohad Ben-Cohen
2010-12-25 21:54 ` Vitaly Wool
2010-12-25 21:54 ` Vitaly Wool
2010-12-25 21:54 ` Vitaly Wool
2010-12-26 2:48 ` [linux-pm] " Alan Stern
2010-12-26 2:48 ` Alan Stern
2010-12-26 5:55 ` Ohad Ben-Cohen
2010-12-26 5:55 ` [linux-pm] " Ohad Ben-Cohen
2010-12-26 5:55 ` Ohad Ben-Cohen
2010-12-26 11:45 ` Rafael J. Wysocki
2010-12-26 12:43 ` Ohad Ben-Cohen
2010-12-26 12:43 ` [linux-pm] " Ohad Ben-Cohen
2010-12-26 12:43 ` Ohad Ben-Cohen
2010-12-26 18:35 ` Rafael J. Wysocki
2010-12-28 19:11 ` Ohad Ben-Cohen
2010-12-28 19:11 ` [linux-pm] " Ohad Ben-Cohen
2010-12-28 19:21 ` Rafael J. Wysocki
2010-12-28 19:21 ` [linux-pm] " Rafael J. Wysocki
2010-12-28 19:21 ` Rafael J. Wysocki
2010-12-28 19:34 ` Ohad Ben-Cohen
2010-12-28 20:36 ` Rafael J. Wysocki
2010-12-28 20:36 ` [linux-pm] " Rafael J. Wysocki
2010-12-28 19:34 ` Ohad Ben-Cohen
2010-12-26 18:35 ` Rafael J. Wysocki
2010-12-26 14:53 ` [linux-pm] " Ohad Ben-Cohen
2010-12-26 18:37 ` Rafael J. Wysocki
2010-12-26 18:37 ` [linux-pm] " Rafael J. Wysocki
2010-12-28 19:15 ` Ohad Ben-Cohen
2010-12-28 20:04 ` Rafael J. Wysocki
2010-12-28 20:04 ` [linux-pm] " Rafael J. Wysocki
2010-12-28 20:04 ` Rafael J. Wysocki
2010-12-28 20:41 ` Ohad Ben-Cohen
2010-12-28 20:41 ` [linux-pm] " Ohad Ben-Cohen
2010-12-28 20:41 ` Ohad Ben-Cohen
2010-12-28 19:15 ` Ohad Ben-Cohen
2010-12-26 14:53 ` Ohad Ben-Cohen
2010-12-26 11:45 ` Rafael J. Wysocki
2010-12-26 17:00 ` [linux-pm] " Alan Stern
2010-12-26 17:00 ` Alan Stern
2010-12-28 19:04 ` Ohad Ben-Cohen
2010-12-28 19:04 ` [linux-pm] " Ohad Ben-Cohen
2010-12-28 19:04 ` Ohad Ben-Cohen
2010-12-28 21:46 ` Alan Stern
2010-12-28 21:46 ` [linux-pm] " Alan Stern
2010-12-28 21:46 ` Alan Stern
2010-12-29 6:34 ` Ohad Ben-Cohen
2010-12-30 4:25 ` Alan Stern
2010-12-30 4:25 ` Alan Stern
2010-12-30 4:25 ` Alan Stern
2010-12-29 6:34 ` Ohad Ben-Cohen
2010-12-29 8:01 ` Ohad Ben-Cohen
2010-12-29 8:01 ` Ohad Ben-Cohen [this message]
2010-12-30 4:30 ` Alan Stern
2010-12-30 4:30 ` [linux-pm] " Alan Stern
2010-12-30 4:30 ` Alan Stern
2010-12-26 17:00 ` Alan Stern
2010-12-26 2:48 ` Alan Stern
2010-12-25 16:21 ` Alan Stern
2010-12-25 7:34 ` Ohad Ben-Cohen
2010-12-18 22:47 ` Rafael J. Wysocki
2010-12-18 15:07 ` Rafael J. Wysocki
2010-12-18 21:20 ` [linux-pm] " Alan Stern
2010-12-18 23:03 ` Rafael J. Wysocki
2010-12-18 23:03 ` Rafael J. Wysocki
2010-12-19 10:00 ` [linux-pm] " Ohad Ben-Cohen
2010-12-19 10:00 ` Ohad Ben-Cohen
2010-12-18 21:20 ` Alan Stern
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