All,
i reconfigured the angstrom build to include cpuidle and cpufreq and
both are included at runtime with cpufreq fully working. I noticed
that cpuidle seems to be broken in that it always remains in the run
state and there is no sleep_while_idle parameter in the /sys/kernel/
debug/pm_debug folder which is usually used to turn cpuidle on and
off. Is this module just not working at this time or is there a
configuration item missing. In the config i added
CONFIG_CPU_IDLE=y
CONFIG_CPU_IDLE_GOV_LADDER=y
CONFIG_CPU_IDLE_GOV_MENU=y
and
CONFIG_PM_SLEEP=y