From: "Rafael J. Wysocki" <rjw@sisk.pl>
To: Matthew Garrett <mjg59@srcf.ucam.org>
Cc: akpm@linux-foundation.org, intel-gfx@lists.freedesktop.org,
dri-devel@lists.freedesktop.org, linux-acpi@vger.kernel.org,
linux-kernel@vger.kernel.org, rpurdie@rpsys.net
Subject: Re: [PATCH 5/5] ACPI: Tie ACPI backlight devices to PCI devices if possible
Date: Mon, 7 Feb 2011 00:01:25 +0100 [thread overview]
Message-ID: <201102070001.25814.rjw@sisk.pl> (raw)
In-Reply-To: <20110206225308.GA23557@srcf.ucam.org>
On Sunday, February 06, 2011, Matthew Garrett wrote:
> On Sun, Feb 06, 2011 at 11:41:19PM +0100, Rafael J. Wysocki wrote:
> > On Sunday, February 06, 2011, Matthew Garrett wrote:
> > > Ugh. Ok, how can we fix this?
> >
> > Not nicely, I'm afraid.
> >
> > One possible way is to use device_pm_move_after() to rearrange the devices in
> > the PM core's suspend list, but that will happen in the video device being
> > suspended before the new parent (and resumed after it) -- of course, the only
> > option is to move the ACPI video device after the new parent.
>
> Hang on. Didn't we already have a related issue with the acpi video
> device being resumed before the video card, resulting in an SMI that
> hung the system? I thought we'd arranged things such that resuming the
> ACPI video device wouldn't actually do anything until after the PCI
> device had been handled? It seems like the correct thing is definitely
> for it to be suspended before and resumed after...
Yes, it seems so, but I'm not sure what the short term consequences of that
change will be. Perhaps there will be none. :-)
next prev parent reply other threads:[~2011-02-06 23:01 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-14 19:24 [PATCH 1/5] Backlight: Add backlight type Matthew Garrett
2011-01-14 19:24 ` [PATCH 2/5] i915: Add native backlight control Matthew Garrett
2011-01-20 20:30 ` [Intel-gfx] " Ali Gholami Rudi
[not found] ` <20112101004346@lilem.mirepesht>
2011-01-20 23:13 ` Andrew Morton
2011-01-21 0:43 ` Matthew Garrett
2011-01-21 1:03 ` Andrew Morton
2011-01-21 4:57 ` Matthew Garrett
2011-01-23 4:45 ` Ali Gholami Rudi
2011-01-23 4:56 ` Matthew Garrett
2011-01-14 19:24 ` [PATCH 3/5] radeon: Expose backlight class device for legacy LVDS encoder Matthew Garrett
2011-01-15 17:34 ` Alex Deucher
2011-01-20 2:12 ` Andrew Morton
2011-01-20 9:05 ` [PATCH v2] drm/radeon/kms: " Michel Dänzer
2011-01-14 19:24 ` [PATCH 4/5] nouveau: Change the backlight parent device to the connector, not the PCI dev Matthew Garrett
2011-01-14 19:30 ` Anca Emanuel
2011-01-14 20:20 ` Matthew Garrett
2011-01-15 9:49 ` Ben Skeggs
2011-01-14 19:24 ` [PATCH 5/5] ACPI: Tie ACPI backlight devices to PCI devices if possible Matthew Garrett
2011-02-06 20:35 ` Rafael J. Wysocki
2011-02-06 20:56 ` Matthew Garrett
2011-02-06 22:41 ` Rafael J. Wysocki
2011-02-06 22:53 ` Matthew Garrett
2011-02-06 23:01 ` Rafael J. Wysocki [this message]
2011-02-06 23:05 ` Matthew Garrett
2011-02-06 23:34 ` Rafael J. Wysocki
2011-02-07 21:32 ` Bjorn Helgaas
2011-02-07 21:34 ` Matthew Garrett
2011-02-07 22:04 ` Rafael J. Wysocki
-- strict thread matches above, loose matches on Subject: below --
2010-11-19 15:53 [PATCH 1/5] Backlight: Add backlight type Matthew Garrett
2010-11-19 15:53 ` [PATCH 5/5] ACPI: Tie ACPI backlight devices to PCI devices if possible Matthew Garrett
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=201102070001.25814.rjw@sisk.pl \
--to=rjw@sisk.pl \
--cc=akpm@linux-foundation.org \
--cc=dri-devel@lists.freedesktop.org \
--cc=intel-gfx@lists.freedesktop.org \
--cc=linux-acpi@vger.kernel.org \
--cc=linux-kernel@vger.kernel.org \
--cc=mjg59@srcf.ucam.org \
--cc=rpurdie@rpsys.net \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox
Powered by JetHome