Hello, I've been studying the power management support on the OMAP 35x EVM (Rev G) and have noticed something which seems inconsistent with the documentation. According to the elinux OMAP Power Management wiki page (http://elinux.org/OMAP_Power_Management) - setting "sleep_while_idle" to '1' and setting "enable_off_mode" and "voltage_off_while_idle" to '0' in the debugfs should result in a kernel which will never hit 'off' sleep states. However in this set up (with both ladder and menu governor) I've found that in this state the C5 and C6 states are entered (according to /sys/devices/system/cpu/cpu0/cpuidle/state[5/6]/time). However according to the sources these states include the off state. Also the /debug/pm_debug/time indicates the off state wasn't reached. Therefore is it just the case that the CPUIdle framework requested C5/6 and the omap driver accepted by actually used another state? Is this incorrect behaviour? Or is my understanding of power management implementation incorrect? Any clarifications would be of great value. I've used the 'pm' branch in the khilman linux-omap-pm repository. (Is this the most appropriate mailing list?) Many Thanks, Andrew Murray -- 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
