This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

TMDSCSK8127: TMDSCSK8127 /sys/kernel/debug/pm_debug folder

Part Number: TMDSCSK8127

I work with TMDSCSK8127 board

Using DM8127 IPNC RDK Release (v3.9.1)

At TI81XX PSP PM SUSPEND RESUME User Guide I see the next:

To turn off power domains with power switches if they are idle(no clock is active) during suspend enable following
$echo 1 > /sys/kernel/debug/pm_debug/turnoff_idle_powerdomains
To disable this:
$echo 0 > /sys/kernel/debug/pm_debug/turnoff_idle_powerdomains

But my target filesystem doesnt have the /sys/kernel/debug/pm_debug folder

It s just has  /sys/kernel/debug folder and this folder is empty.

How should I build filesystem to get the filesystem with  /sys/kernel/debug/pm_debug folder?