Ramesh Gupta Guntha <grgupta77@xxxxxxxxx> writes: > Hi Shreyas, > > On 2/4/09, Shreyas Mahajan <mahajan.shreyas@xxxxxxxxx> wrote: >> Hi, >> Thanks for constantly tolerating my ignorance. I git-cloned the >> latest PM tree available and booted my 3430 LDP board with ldp >> defconfig configuration. Now the problem regarding hanging of machine >> after some small interval is solved but when I done 'echo mem >> >/sys/power/state' it gives error to suspend, >> This is log for it, >> >> '/ # echo mem > /sys/power/state >> <6>PM: Syncing filesystems ... PM: Syncing filesystems ... done. >> done. >> Freezing user space processes ... Freezing user space processes ... >> (elapsed 0.00 seconds) (elapsed 0.00 seconds) done. >> done. >> Freezing remaining freezable tasks ... Freezing remaining freezable >> tasks ... (elapsed 0� )����r$�Powerdomain (core_pwrdm) d1 >> Powerdomain (per_pwrdm) didn't enter target state 1 >> �*43 >> Could not enter target state in pm_suspendend to debug) >> � 1�ռ���, 森�Ѡr�� >> Restarting tasks ... Restarting tasks ... done.%�������� J$�4%�% Ѵ�*43 >> done.F�)������������ J$�4%�% Ѵ�*43 >> ' >> I searched similar problems on mailing list, in which suspend log >> contains exactly which process could not be stopped as reason to >> suspend failure. But in above log, I could not interpret such a >> reason. >> Could anyone please help me with this? > > Please look into below mail thread on the PM off mode support in l-o list. > > http://www.mail-archive.com/linux-omap@xxxxxxxxxxxxxxx/msg08968.html > > If you are trying it on SDP , use u-boot mentioned in the above link. > > > use below settings before running echo mem > /sys/power/state for off mode. > > echo 1 > /sys/power/clocks_off_while_idle > echo 1 > /sys/power/voltage_off_while_idle > echo 1 > /sys/power/enable_off_mode > > > I tried it on my SDP with omap_3430sdp_min_defconfig, I am seeing all > the domains entering to OFF mode. > In addition to above, I suggest you turn of CONFIG_DEBUG_LL as well as that will clutter up your serial console with garbage during suspend/resume. 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
