How to enable LPSR correctly on MCIMX7SABRE???
Power consumption is critical in our product.
>NXP or other standard reference board used
I am use a MCIMX7SABRE EVB.
>Kernel version and/or BSP release used
Testing with official Android image: android_N7.1.2_2.0.0_image_7dsabresd
>Any additional software/application or hardware used
>Hardware or software changes made from standard platform
>Expected and observed behavior
System current should be low after enter supend.
system active--> power supply is about 340mA 5V
system suspend--> power supply is about 270mA 5V.
Expected suspend current should below 10mA.
>Steps to reproduce
Boot into system.
Run below command from UART and USB is not connect.
echo mem > /sys/power/state
Try to apply below thread patch to modify imx7d-sdb.dts
Suspend current is drop to 173mA 5V but cannot resume (it looks like crash and system didn't have any response.)
How to Resume from LPSR mode on imx7D sabre
>Frequency of reproducibility (always, usually, sometimes)
>Display type and resolution (for video/graphic/display issues