imx6 power consumption

Shawn Guo shawn.guo at linaro.org
Tue Dec 17 21:45:48 EST 2013


On Tue, Dec 17, 2013 at 07:28:27PM +0100, Bjørn Erik Nilsen wrote:
> Hi,
> 
> I have measured power consumption for imx6 in mem mode on the 3.12.4 mainstream kernel vs. 3.0.35 kernel from freescale/boundary devices. I noticed a significant increase going from 3.0 to 3.12 . I have at least identified one big difference: DDR is no longer tri-stated, which accounts for some of the difference.
> 
> I use 'echo mem > /sys/power/state' for my test case.
> 
> Do you know if someone is looking into this issue, or if there are pending patches somewhere?

It's an unimplemented feature rather than an issue.  There are some
patches on Freescale 3.10 kernel, and you're welcomed to bring these
patches to mainline kernel.

Shawn




More information about the linux-arm-kernel mailing list