imx8mm - Power management

[ashikp6]

Hi,

I am using a custom board with imx8mm booted with android 11(linux-5.10)

As a part of supporting power management modes, i enabled these modules.

CONFIG_PM=y
CONFIG_SUSPEND=y
CONFIG_PM_SLEEP=y
CONFIG_PM_WAKELOCKS=y
CONFIG_PM_DEBUG=y

Now once the board goes to suspend mode, the total current drawn from the battery i measured
is around 60mA(unfortunately i cant measure the current to each power rail). But as per my requirement i need to bring it down to atleast 30-35mA.

Can you point out where i should start working on to increase the power management or any documents related to this.

iMX8MMINI 

Thanks
Ashik

[Dhruvit]

Hi @ashikp6,

One can refer to chapter 5. Reducing power consumption in i.MX 8M Mini Power Consumption Measurement and Arm® Cortex®-M4 and Arm® Cortex®-A53 Low-Power Use Cases.

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Thanks & Regards,
Dhruvit.