* Pavel Machek <pavel@xxxxxx> [160417 10:56]: > > The off mode makes a huge difference for standby time, it should cut > > down the total power consumption to something like 10+ mW with modem > > enabled. Aproximately the breakdown is roughly: 900 uW for omap, 5 mW > > for memory and 5 or more for the modem. Sorry I don't know the exact > > numbers for the modem. But with 37xx torpedo, mainline kernel is > > already getting very close to the 900 uW + 5 mW numbers for the CPU > > module during idle measured from the ina219 shunt on the torpedo > > devkit. > > CONFIG_HSI breaks power management completely, so power management > with modem will be another topic. OK > > > > In the meantime, I found what is causing the rention mode to break for > > > > me: CONFIG_HSI (aka wireless modem support). With HSI off, it seems to work. > > > > > > > > I still get problems with the camera button, in config similar to > > > > defconfig. For some reason, I'm even getting (autorepeating) ^@ on > > > > console. As long as I hold camera button down, I even get it into off > > > > mode for brief period. > > > > > > Ok, if I turn off CONFIG_KEYBOARD_GPIO, I get it into off > > > mode... once per screen blank, for about a second. (Does CONFIG_KEYBOARD_GPIO also cause > > > problems for you?) > > > > > > Any idea why it enters off mode only once after each screenblank? > > > > After disabling CONFIG_PROVE_LOCKING, loading the LCD modules, and > > blanking the screen, my n900 hits off mode just fine about once > > a second. Sounds like you still have some extra devices enabled > > causing it. > > I checked again... also with vanilla 4.6-rc2 to double check... same effect. > > Aha, got it... cat-ing /sys/kernel/debug/pm_debug/count breaks the > off mode. If I don't do that (tm), it seems to work way better. Ah I see yeah :) Regards, Tony -- 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
