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| author | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-05-16 15:05:59 +0400 |
|---|---|---|
| committer | Rafael J. Wysocki <rafael.j.wysocki@intel.com> | 2014-05-17 01:05:40 +0400 |
| commit | 4ec6a9cc23cbadb4721eb3fe778389c4bbede893 (patch) | |
| tree | e8899d9bddb1a2729099685067fa1dfa365784c5 /Documentation/power/runtime_pm.txt | |
| parent | d6d211db37e75de2ddc3a4f979038c40df7cc79c (diff) | |
| download | linux-4ec6a9cc23cbadb4721eb3fe778389c4bbede893.tar.xz | |
PM / runtime: Update documentation to reflect the current code flow
The runtime PM documentation in runtime_pm.txt has not been updated
after some changes to the system suspend and resume core code, so
update it to reflect the current code flow.
Signed-off-by: Rafael J. Wysocki <rafael.j.wysocki@intel.com>
Acked-by: Alan Stern <stern@rowland.harvard.edu>
Diffstat (limited to 'Documentation/power/runtime_pm.txt')
| -rw-r--r-- | Documentation/power/runtime_pm.txt | 20 |
1 files changed, 11 insertions, 9 deletions
diff --git a/Documentation/power/runtime_pm.txt b/Documentation/power/runtime_pm.txt index 5f96daf8566a..054893e093c0 100644 --- a/Documentation/power/runtime_pm.txt +++ b/Documentation/power/runtime_pm.txt @@ -648,15 +648,17 @@ The PM core does its best to reduce the probability of race conditions between the runtime PM and system suspend/resume (and hibernation) callbacks by carrying out the following operations: - * During system suspend it calls pm_runtime_get_noresume() and - pm_runtime_barrier() for every device right before executing the - subsystem-level .suspend() callback for it. In addition to that it calls - __pm_runtime_disable() with 'false' as the second argument for every device - right before executing the subsystem-level .suspend_late() callback for it. - - * During system resume it calls pm_runtime_enable() and pm_runtime_put() - for every device right after executing the subsystem-level .resume_early() - callback and right after executing the subsystem-level .resume() callback + * During system suspend pm_runtime_get_noresume() is called for every device + right before executing the subsystem-level .prepare() callback for it and + pm_runtime_barrier() is called for every device right before executing the + subsystem-level .suspend() callback for it. In addition to that the PM core + calls __pm_runtime_disable() with 'false' as the second argument for every + device right before executing the subsystem-level .suspend_late() callback + for it. + + * During system resume pm_runtime_enable() and pm_runtime_put() are called for + every device right after executing the subsystem-level .resume_early() + callback and right after executing the subsystem-level .complete() callback for it, respectively. 7. Generic subsystem callbacks |