Linux Power mangament architechure

  • Thread starter bandaru_sivakrishna
  • Start date
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bandaru_sivakrishna

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Hai All,

I am working on Linux power management on Cortex A-9 dual core micro-controller. I am new to power management. So Can you anybody Please Help me on Linux power management architecture with Hardware level.

Please help me on this.....

Thanks & Regards,
Siva Krishna.
 


Hi All,

I am using Samsung-exynos micro-controller...in this controller we have 6 power states they are
1) Normal
2) Idle
3) Deep-Idle
4) Stop
5) Deep-Stop
6) Sleep

But in linux Kenel we have only Four Power states, they are
1) Run
2) StandBy
3) ShutDown
4) Sleep

So my question is How the Linux kernel 4 power states are controlled Samsung-exynos micro-controller 6 power states. How its inter-linked?

Please Help me on this.

Thanks & Regards
Siva Krishna.
 
am no expert but i'd suggest you try bridging certain states by assigning the same state twice to the Samsung microcontroller i.e normal to run, idle and deep idle to standby, shutdown to deep-stop and stop then sleep to sleep. alternatively skip the deep-idle and stop states then link the rest to the appropriate states
 


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