How change i.MX6DQ power mode Standby <-> Deep Sleep?

[satoshishimoda]

Hi community,

Our customer have a question about i.MX6DQ.
Is there any idea to switch the i.MX6DQ power mode Standby <-> Deep sleep?
I believe the difference between standby and deep sleep is only OSC24M, so I think we can switch the power mode Standby <-> Deep sleep if we understand how to enable/disable OSC24M.

Best Regards,
Satoshi Shimoda

[igorpadykov · Accepted solution]

Hi Satoshi

deep sleep mode is implemented in linux, please check
Chapter 21 Low-level Power Management (PM) Driver
attached Linux Manual for description of Mem (suspend to RAM) mode
and AN4509 i.MX 6Dual/6Quad Power Consumption Measurement sect.5.2 Deep Sleep Mode
https://cache.freescale.com/files/32bit/doc/app_note/AN4509.pdf
Note, if custom modifications of linux sources are needed, may be recommended
to apply to mss services or elevate request through local fae channel (project info
may be needed).

Best regards
igor
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[satoshishimoda]

Dear Igor,

Thank you for your reply.

By the way, I understand STOP mode of driver corresponds with Standby mode of i.MX6, and DORMANT mode of driver corresponds with Deep Sleep mode of i.MX6.

So we can understand what is different between Standby and Deep Sleep , and how to switch the Standby <-> Deep Sleep by checking the source code for STOP and DORMANT mode.

Is this correct?

Best Regards,

Satoshi Shimoda

[igorpadykov]

Hi Satoshi

yes this is correct understanding

Best regards
igor