Elvis >-----Original Message----- >From: Elvis Dowson [mailto:elvis.dowson@xxxxxxx] >Sent: Tuesday, July 21, 2009 12:34 AM >To: Pandita, Vikram; Kevin Hilman >Cc: Linux OMAP Users >Subject: RE: android-omap-2.6.29 for gumstix overo > >Hi Vikram, > I am now looking at the android-omap-2.6.29 branch, and after having looked at the >zoom2_defconfig file, I notice that power management is not enabled in the zoom2_defconfg file. Do >you know if anyone managed to get a working PM implementation for android-2.6.29 for TI OMAP >3503/3430? > >I adapted the zoom2 settings for my overo android-2.6.29 build, and find that the system doesn't go >to suspend mode at all. :-) Yes you are right. PM is not enabled by default on zoom2_defconfig and Mike will be sending a patch for the same to Android mainline. While we submit the patch, you can use the attached defconfig. > >So, while DSS2 and OMAP-PM have been integrated into the android-omap-2.6.29 branch, am I correct in >concluding that power management suspend has not yet been implemented for android on TI OMAP >3503/3430? > >For example, here is a snippet from the zoom2_defconfig that shows pm suspend not being enabled. >Because of this android cannot suspend and blank the screen after a period of inactivity: > ># ># OMAP Feature Selections ># ># CONFIG_OMAP_DEBUG_POWERDOMAIN is not set ># CONFIG_OMAP_DEBUG_CLOCKDOMAIN is not set ># CONFIG_OMAP_SMARTREFLEX is not set ># CONFIG_OMAP_RESET_CLOCKS is not set ># CONFIG_OMAP_PM_NONE is not set >CONFIG_OMAP_PM_NOOP=y ># CONFIG_OMAP_PM_SRF is not set > >Even CPU power management is disabled: > ># ># CPU Power Management ># ># CONFIG_CPU_FREQ is not set ># CONFIG_CPU_IDLE is not set > >As you can see suspend is disabled. > ># ># Power management options ># >CONFIG_PM=y ># CONFIG_PM_DEBUG is not set ># CONFIG_SUSPEND is not set >CONFIG_HAS_WAKELOCK=y >CONFIG_HAS_EARLYSUSPEND=y >CONFIG_WAKELOCK=y >CONFIG_WAKELOCK_STAT=y >CONFIG_USER_WAKELOCK=y >CONFIG_EARLYSUSPEND=y ># CONFIG_NO_USER_SPACE_SCREEN_ACCESS_CONTROL is not set ># CONFIG_CONSOLE_EARLYSUSPEND is not set >CONFIG_FB_EARLYSUSPEND=y ># CONFIG_APM_EMULATION is not set >CONFIG_ARCH_SUSPEND_POSSIBLE=y >CONFIG_NET=y > >Best regards, > >Elvis >
Attachment:
zoom2_pm_defconfig
Description: zoom2_pm_defconfig
