Does wp7605 have an auto suspend mechanism?
Because only the debug console is connected, it seems that there will be no response due to entering suspend (dmesg message is as follows)
[ 64.408601] Freezing of tasks aborted after 0.008 seconds
[ 64.503073] Freezing of tasks aborted after 0.009 seconds
[ 64.629427] PM: Some devices failed to suspend, or early wake event detected
[ 64.742489] Freezing of tasks aborted after 0.009 seconds
[ 64.854391] Freezing of tasks aborted after 0.009 seconds
[ 64.959135] Freezing of tasks aborted after 0.009 seconds
[ 65.925713] sierra_pm_resume, total sleep time = 134, startup_timer expired
and I have run a LED flashing program, it stops after removing the USB cable, and starts normal operation again after plugging in the USB cable
How to enable/stop the power saving mechanism?
I have also checked AT!POWERMODE?
!POWERMODE: No request, status=9-PSM disabled
Another problem is that when I connect mangoh yellow to a Linux computer, I can find the 192.168.2.2 device at first, but the device disappears after about ten seconds ( use lsusb to check, device is still connected). Is this also a suspend problem?
Firmware Version: SWI9X07Y_02.37.03.00 73df45 jenkins 2020/04/08 10:59:14
Bootloader Version: SWI9X07Y_02.37.03.00 73df45 jenkins 2020/04/08 10:59:14