How can I set the power button behaivor of beagle bone black?

[Nahuel .78]

I'm working on Beagle Bone Black, and I need to change the power button behaivor.

Img that I'm using: bone-debian-8.7-lxqt-4gb-armhf-2017-03-19-4gb.img

As the documentation says, this button can wakeup is the module has in suspend mode.

REF: BBONEBLK_SRM BeagleBone Black System Reference Manual Rev C.1
6.1.8.5 WAKEUP 
The WAKEUP signal from the TPS65217C is connected to the EXT_WAKEUP signal on the processor. 
This is used to wake up the processor when it is in a sleep mode. 
When an event is detected by the TPS65217C, such as the power button being pressed, it generates this signal.

A note: 

At this moment, if I press the power button the BBB proceed to shutdown. 

But, if the BBB is suspended, when I press the power button doesn't wake up. 

I need to change this behavior to wake up the module. –

Anybody knows how can I change it? 

Thanks a lot!