> The Product > =========== > Nokia 770 is powered by an OMAP1710 on a custom board. The device will > ship with a 1500mAh battery which will give a continuous browsing > use-time (WLAN or Bluetooth) of 3hrs. The device needed to be > instant-ON, so we have used run-time power management. This gives us an > official 'standby-time' of 7 days. All the drivers make extensive use of > the clock framework and release clocks when peripheral is not in use. ... and all that running Linux! The last rumor I heard was that it might base on the 2.6.12 kernel. I look forward to seeing one of these, so I'll know for sure! For those unfamiliar with OMAP, http://linux.omap.com is a place to start ... there's a Linux-OMAP mailing list and patches (such as 2.6.13-rc1-omap1) in a GIT repository, many of which have made their way into kernel.org releases. It's a family of ARM SOC processors that's very power-efficient. > Interests > ========= > Here are a few ideas that we are planning to investigate in order to > address shortcomings in the current PM model with respect to system-wide > PM: > > - Regulator framework: similar to clock framework HAL Perhaps you could elaborate in a separate email thread? > - Generic framework for system-wide constraints: to handle constraints > outside bus control > - PM framework: Enhance PM framework to allow flexible policy control. > Like DPM? > - User space API: Requires study > > Are these ideas of interest to the PM community or Nokia-specific? General interest! I'll be very glad to see a more cross-pollination from that part of the embedded Linux world. Laptops get plenty of attention, but there's more to Linux than that. :) - Dave
