Re: PM/UART 3.5-rc5: UART Rx wakeups not quite right?

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Hi,

On Thu, Jul 05, 2012 at 07:32:30AM -0700, Kevin Hilman wrote:
> "Joe Woodward" <jw@xxxxxxxxxxxxxx> writes:
> 
> > Are there any patches floating around to fix UART Rx wakeups for 3.5?
> >
> > I have a GUMSTIX Overo with various things hanging off the UARTs, one
> > of which (on ttyO0) sends in periodic (GPS) data.
> >
> > I don't want this data to wake the OMAP from system suspend.
> >
> > I would normally disable UART Rx wakeup for ttyO0:
> > # echo "disabled" > /sys/devices/platform/omap_uart.0/power/wakeup
> >
> > This works on 3.5-rc5 (i.e. I can suspend, and not immediately wake) UNTIL
> > I run an application that opens /dev/ttyO0.
> >
> > At this point when entering system suspend ttyO0 wakes the OMAP up
> > immediately, even though the SYSFS reports the wakeup as "disabled".
> >
> > Any ideas?
> 
> Sounds like a bug.
> 
> Unfortunately, the OMAP UART driver is currently without an owner as far
> as I know.
> 
> Felipe, who is looking after the UART driver now?

you said it right. It's without an owner. Joe, any chance you could help
by bisecting the problem down to a commit ?

-- 
balbi

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