Messages in this thread | | | From | Raj Kumar <> | Subject | Runtime power management during system resume | Date | Tue, 24 Aug 2010 18:45:10 +0530 |
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Hi Alan,
I have implemented the run time power management in my drivers. I have one issue regarding System resume.
When the system sleep is triggered as it is mentioned that Power management core will increment the power_usage counter during prepare and decrements when complete is called.
Now I have few questions:
1) When the system resume is done, it does not increase the power_usage counter. right?
So Does then the driver need to update the power_usage counter with run time power management core and again set it to active means RPM_ACTIVE?
2) Suppose device is active, means its power_usage counter is already one, Now during system sleep, does the driver first suspend it with run time power management core and then continue System suspend?
3) Because I have seen the code of power management core and I did not see the that during system suspend, run time power management status is updated means RPM_SUSPENDED. right?
What do you think?
Regards Raj
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