2008-07-08 10:59:00 standby state for blackfin 537
pengcheng liu (UNITED STATES)
Message: 58489
Hi, guys
I am trying to put the blackfin board to standby state for saving power, when I follow the
website instruction :
http://docs.blackfin.uclinux.org/doku.php?id=power_management_support
after I did this command
root:~> echo 'standby' > /sys/power/state
I see the this coming up in termial:
root:~> echo 'standby' > /sys/power/state
Stopping tasks: ========|
Suspending console(s)
gpio: Possible Conflict with Peripheral usage and GPIO 2 detected!
Restarting tasks... done
What does this mean? Is it mean bf537 has been put into standby state or it failed?
thanks in advance
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2008-07-08 15:41:47 Re: standby state for blackfin 537
Robin Getz (UNITED STATES)
Message: 58492
Pengcheng:
My understanding is that it tried to go to sleep, but you defined a wakeup source (GPIO2) that a driver is currently using - so the gpio subsystem will not let you go into the standby state.
-Robin
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2008-07-09 09:49:51 Re: standby state for blackfin 537
pengcheng liu (UNITED STATES)
Message: 58549
Thanks
I solved the problem by uncheck the option in GPIO wakeup menu!
pengcheng