A1 kernel also has fix! http://forum.xda-developers.com/show...php?p=30222169
I have had a problem with battery life due to l2_hsic wakelock for a long time. The wakelock has been present on both stock ICS and CM 10 with my P7500. Have searched for a solution for weeks and finally realized that the problem it is modem related. Flashed a modem from before ICS, and the wakelock is now gone. What a relief to get my honeycomb battery life back! I am now running CM10 and A1 kernel V1.8.4.
The modem I flashed was XXKK2.
Link to modems: http://forum.xda-developers.com/show....php?t=1867147
(Thanks to AAcount for sending me in the right direction)