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How to wakeup by PMIC_STBY_REQ

Question asked by ko-hey on Nov 4, 2018
Latest reply on Nov 12, 2018 by igorpadykov

Hi all

 

I want to clearfy how to wakeup from standby by PMIC_STBY_REQ.

 

I tested wakeup from standby by PMIC_STBY_REQ both MCIMX6DL-SDP and SABRE-AI.

But SABRE-AI have never wakedup by PMIC_STBY_REQ.

 

could someone answer following question ?

 

Q1.

I use following command to enter standby mode.

 

echo mem > /sys/power/state

 

Is it same effect on both board ?

 

 

Q2.

When I use echo mem > /sys/power/state command, the vstby bit will set.

Am I correct ?

 

 

Q3.

I found that the MCIMX6DL-SDP have PWR_BTN_SNS signal but SABRE-AI doesn't have it.

Does user need to add PWR_BTN_SNS signal for wakeup from standby by PMIC_STBY_REQ ?

 

 

Ko-hey

 

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