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| author | Alexander Usyskin <alexander.usyskin@intel.com> | 2014-07-17 10:53:36 +0300 |
|---|---|---|
| committer | Greg Kroah-Hartman <gregkh@linuxfoundation.org> | 2014-09-05 16:36:27 -0700 |
| commit | df060ede29c85fb3c79037342b75e5666fbf1b90 (patch) | |
| tree | 6d7e387fdd3cbacc42dcd6f2ee96e54ff362a44f /kernel | |
| parent | 06dcc69217177e10028898abbf29d5cc8a582303 (diff) | |
mei: don't schedule suspend in pm idle
commit d5d83f8abea13d0b50ee762276c6c900d1946264 upstream.
Calling pm_schedule_suspend from the runtime pm idle callback
may reschedule existing timer, thus in case of frequent runtime
rpm idle call the suspend maybe starved.
Instead we call pm_runtime_autosuspend which is checking if the
timer is already charged.
An example is monitoring device pci config space.
Pci config sysfs handlers calls pci_config_pm_runtime_put/get
helpers which in turns calls to device idle callback
Signed-off-by: Alexander Usyskin <alexander.usyskin@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
Diffstat (limited to 'kernel')
0 files changed, 0 insertions, 0 deletions