[Linux-pm][standby mode - S0/D2/C4] Wake up sources in standby

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Hi,

 

I am facing a problem of wake up after entering the standby mode(S0/D2/C4)

In standby mode, my understanding is that, the processor is in state retaining mode.

Most of the power domains are still powered on.

The context need not be saved for retaining the state prior to entering standby mode.

 

I have set up the wake up source as external wake up (power on/off switch).

But processor never wakes up once it is entered standby mode. Even it does not respond to the JTAG debugger.

 

What is the normal wake up procedure for standby mode.

 

Is there any difference between Idle mode and standby mode.

 

Thanks and Regards,

Sridhar.

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