On Fri, 19 Oct 2007 08:56:18 +0800 "eric miao" <[EMAIL PROTECTED]> wrote:
> On 10/19/07, Kristoffer Ericson <[EMAIL PROTECTED]> wrote: > > Greetings, > > > > I've been trying to implement proper suspend on my jornada 720 machine. But > > as far as I can see it never reaches > > the sa11x0_suspend code. > > > > I've linked power button event to produce APM_SUSPEND and I can see that it > > says "Stopping TASKS ======". It then > > blanks screen but keeps LCD powerd. I know it goes into resume again since > > removing backlight code in resume function > > effectivly turns off the LCD. > > > > Im assuming that it tries to suspend but fails at some point and tries to > > return into normal operations? > > Exactly what is needed to get the suspend procedure happy? Does every > > driver need to have suspend/resume code? > > I don't think so. Unless a driver feels it necessary to take some > action, no suspend/resume > will not cause the whole system to fail. However, Ah, good to know. > > 1) if any driver suspend code returns error, the whole procedure will stop > 2) and instable wake-up source (like glitch on wake-up GPIO pin) or > incorrect setting (like > wake up from RTC but set the interval to be 0) will also cause the > immediate resume I'll start running through the different drivers to see if I can spot anything obvious. > > check "sa11x0_suspend" print out won't work since the console has already been > suspended, try DISABLE_CONSOLE_SUSPEND or other ways > > - eric > > > > > Best wishes > > Kristoffer Ericson > > - > > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > > the body of a message to [EMAIL PROTECTED] > > More majordomo info at http://vger.kernel.org/majordomo-info.html > > Please read the FAQ at http://www.tux.org/lkml/ > > -- Kristoffer Ericson <[EMAIL PROTECTED]> - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
