How to enter the i.MX7Solo into Standby mode on ITRON

[yuuki]

Dear all,

We run ITRON on i.MX7Solo.
We want to enter the i.MX7Solo into Standby mode.
We refer to Example Code 2 of the reference manual.

http://www.nxp.com/assets/documents/data/en/reference-manuals/IMX7SRM.pdf
 - 5.5.9.2 Example Code 2

We understand it, when i.MX7Solo enters the Standby mode, it has to drive PMIC_STBY_REQ signal to PMIC.
(GPC_SLPCR[VSTBY]=1)

However, PMIC_STBY_REQ signal is not asserted.
(We understand that we only set VSTBY bit of the GPC_SLPCR register.)

In addition, is there the item where we should be careful about?

Best Regards,
Yuuki

[art]

That means the CPU hasn't go to the suspend mode successfully.

The conditions for the CPU platform to go to the suspend (Deep Sleep) mode are described in the Section 5.5.4.4 "LPM Sleep Process" of the i.MX7Solo Reference Manual document (especially, refer to the description on the Page 810). Please check.

Also, try to add the "no_console_suspend" command to the kernel command line. Does it have any effect?

Have a great day,
Artur

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