• State
  • Locked Locked
  • Replies 1 reply
  • Subscribers 97 subscribers
  • Views 373 views
  • Users 0 members are here
Support feedback
Options
Options
Related

This thread has been locked.

If you have a related question, please click the "Ask a related question" button in the top right corner. The newly created question will be automatically linked to this question.

WIFI is causing spurious wakeup from suspend.

balu devarapalli
Prodigy 120 points
Other Parts Discussed in Thread: DM3730, WL1271

Hi ,

I am working on DM3730 OMAP3 processor with TIWI BLE wifi module.I am facing an issue with suspend/resume.

If I turn on wifi  and connected to a router and suspend the device,then the device keep on resuming at continuous interval of time(approximately 2 min) and going to suspend state .

Each time getting the print: Wakeup wake lock:alarm (or)Wakeup wake lock:wl1271.

I think the network interface should be down when the device is in suspend state,but not happening.

Is this issue with wifi module or it is with omap processor?

Please help me to fix this issue.

Thanks,

Balu.

  • 0
    Prodigy 120 points
    Hi I did some more experiments,
    This issue is happening only one device,the remaining devices are working properly.

    On working device:
    the supplicant is going to stopped state in the device suspend mode,so the network is going to down state properly.

    On not working device:
    The supplicant is restarting when the device is in suspended state,It is not going to stopped state.So the wifi scan functionality is still alive and getting wakeup interrupts .
    Can any one help why the supplicant is not going to stopped state in the device suspend.


    I think this is some hardware related issue,I checked the wifi enable and irq pins ,they are working fine.

    Thanks,
    Balakrishna