https://bugzilla.kernel.org/show_bug.cgi?id=48981
--- Comment #11 from Huang Ying <ying.hu...@intel.com> 2012-10-24 07:12:23 ---
(In reply to comment #10)
> I believe that pm_runtime_{suspend,resume} is not possible for this driver
> because it binds the device. Is that a correct observation from me? I went the
> manual way by calling pm_runtime_{get,put}_sync on the bus device (assuming
> that is the parent).
Yes. That should works.
> So, to make this bug more relevant to the Linux kernel instead of my project,
> this runtime PM behavior breaks /proc/bus/pci/??/??.?. Before 3.6, this file
> could be read even if there is no driver available. After this commit, this
> file reads empty. Note that /sys/bus/pci/devices/0000:??:??.?/config returns
> the correct values.
Oh, yes, that is a bug. I will fix it. But I think you need open another
bugzilla item?
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