-----Original Message----- From: Chris Wilson [mailto:chris@chris-wilson.co.uk] Sent: Saturday, July 27, 2013 5:40 PM To: Liu, Chuansheng Cc: daniel.vetter@ffwll.ch; airlied@linux.ie; intel-gfx@lists.freedesktop.org; Li, Fei; dri-devel@lists.freedesktop.org Subject: Re: [Intel-gfx] [PATCH] drm/i915: Sync the hotplug work when device suspending
On Sun, Jul 28, 2013 at 01:43:02AM +0800, Chuansheng Liu wrote:
It is possible that during i915 device suspending with one pending hotplug work, one of cases is the device resume/suspend quickly.
At this case, the hotplug work will be executed even after device is OFF, in Intel Android platform, it will cause system hang.
See
1343070574-23917-1-git-send-email-chris@chris-wilson.co.uk http://lists.freedesktop.org/archives/intel-gfx/2012-July/019144.html
Sorry to not know this thread before, and it seems it did not be included into upstream. Moreover, in current upstream code the rps_work has been synced in intel_disable_gt_powersave().
So, is it possible to consider my patch based on current upstream code? Thanks.
which is in response to the bug raised here
s5hlilr4s9h.wl%tiwai@suse.de http://lists.freedesktop.org/archives/intel-gfx/2012-April/016738.html -Chris
-- Chris Wilson, Intel Open Source Technology Centre