You may look at Chapter 22 [Low-level Power Management (PM) Driver],
section 22.1.1 (Software Operation) of “i.MX_6_Linux_Reference_Manual.pdf”
in Linux documentation how to treat with DORMANT (Power off) mode.
http://www.freescale.com/webapp/sps/site/prod_summary.jsp?code=IMX6_SW
Have a great day,
Yuri
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