Kevin Hilman <khilman@xxxxxxxxxxxxxxxxxxx> writes: > Kevin Hilman <khilman@xxxxxxxxxxxxxxxxxxx> writes: > >> Kevin Hilman <khilman@xxxxxxxxxxxxxxxxxxx> writes: >> >>> Juha Kuikka <juha.kuikka@xxxxxxxxx> writes: >>> >>>> On Tue, Oct 6, 2009 at 4:16 PM, Kevin Hilman >>>> <khilman@xxxxxxxxxxxxxxxxxxx> wrote: >>>>> >>>>> Kevin Hilman <khilman@xxxxxxxxxxxxxxxxxxx> writes: >>>>> >>>>> > Hello, >>>>> > >>>>> > I've rebased/updated the PM branch based on current linux-omap master >>>>> > branch (2.6.32-rc1 based.) >>>>> > >>>>> > I've also updated the OMAP Power Management wiki, and the 'Current >>>>> > version' section highlights the changes, supported platforms as well >>>>> > as the features that have made it into mainline. >>>>> > >>>>> > http://elinux.org/OMAP_Power_Management#Current_version >>>>> > >>>>> >>>>> FYI... I just rebased the PM branch onto current omap/master. >>>>> >>>>> Some important user-visible changes: The /sys/power/* options are >>>>> moving into debugfs. For mainline, these primarily debug options need >>>>> to move to debugfs so I've moved them there. So, if you're missing >>>>> some flag under /sys/power, it's now under /debug/pm_debug. >>>>> >>>>> I've updated the 'Using the PM branch' seciont of PM wiki[1] with >>>>> the new filenames. >>>>> >>>>> Kevin >>>>> >>>>> [1] http://elinux.org/OMAP_Power_Management >>>>> -- >>>>> To unsubscribe from this list: send the line "unsubscribe linux-omap" in >>>>> the body of a message to majordomo@xxxxxxxxxxxxxxx >>>>> More majordomo info at http://vger.kernel.org/majordomo-info.html >>>> >>>> Hi, >>> >>> Hi Juha, >>> >>>> I build and tried this latest on Beagleboard (C2). Booting from MMC >>>> using ramdisk image. I changed the LL console to the 3rd UART. >>>> >>>> The issue I have is that after the system boots up it works for as >>>> long as I keep actively using it but if I leave it idle for a short >>>> time (~5s) it stops responding. I have tried waking it up using both >>>> UART and "USER" button on the board. This is with the default PM >>>> configuration. >>> >>> Thanks for testing, and reporting your problem. I have noticed >>> exactly the same problem and am still investigating it. >>> >>>> If I put the board into suspend (retention) it wakes up without any issues. >>>> >>>> Also, if I enable "/debug/pm_debug/sleep_while_idle" board wakes up >>>> without issues. Well the first couple characers on the console seem to >>>> go missing but I guess without CTS/RTS that is expected? >>> >>> Yes, the loss of the first character is expected. >>> >>>> Any pointers would be appreciated. >>> >>> I also noticed that it works when 'sleep_while_idle' is enabled, and >>> this has led me to suspect a bug in that serial timout path, but I >>> have yet to debug further. >> >> FYI... >> >> I haven't figured out exactly why yet, but this patch gets things >> working again. >> >> Basically, I'm just leaving smart-idle disabled all the time. >> > > I've discovered that this is only needed when using the older u-boot > binary I was downloading from beagleboard.org. I've had lots of PM > headaches when using this u-boot and I had forgotten that I had > (re)flashed with it. > > If I build and use a u-boot from the u-boot-ti repo[1], I don't have > this problem anymore. Scratch that. Operator error. Actually, I still do have this particular problem, but upgrading u-boot solved some other unrelated problems. Sorry for the noise. Kevin -- To unsubscribe from this list: send the line "unsubscribe linux-omap" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
