MCM-iMX93: Yocto Linux: Known Issues

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WiFi and BT prevent going to deep sleep
  • sleep command such as:
rtcwake -d rtc0 -m mem -s 5

fails

Workaround :

before going to sleep unbind SDIO devices

modprobe -r mwifiex_sdio
modprobe -r btmrvl_sdio

Once the device wakes up, re-bind them:

modprobe mwifiex_sdio
modprobe btmrvl_sdio
LPM doesn't work
  • missing file
/sys/devices/platform/imx93-lpm/mode