Openmoko Bug #2349: Too high power consumption in 2.6.32

[Openmoko Public Trac]

#2349: Too high power consumption in 2.6.32
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 Reporter:  Q-Master  |          Owner:  openmoko-kernel
     Type:  defect    |         Status:  new            
 Priority:  high      |      Milestone:                 
Component:  kernel    |        Version:                 
 Severity:  major     |       Keywords:                 
 Haspatch:  0         |      Blockedby:                 
Estimated:            |    Patchreview:                 
 Blocking:            |   Reproducible:  always         
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Comment(by lindi):

 Here are some current measurements done with usb and 0.1 ohm resistor (I
 said 0.5 ohm previously but that was false info):

 kernel is 2.6.29
 {{{
 suspend 0.9 mV 45 mW
 idle 3.7 mV 185 mW
 backlight255_black 20.3 mV 1015 mW
 backlight255_white 19.1mV 955 mW
 backlight127_black 8.8 mV 440 mW
 backlight127_white 7.6 mV 380 mW
 backlight12_black 7.2 mV 360 mW
 backlight12_white 5.9 mV 295 mW
 while true;do :;done 7.2mV 360 mW
 speaker-test -t sine, max volume 23.5 mV 1175 mW
 redled255 4.1 mV 205 mW
 blueled255 3.7 mV 185 mW
 orange255 4.0 mV 200 mW
 cat /dev/acclerometer-top 4.0 mV 200 mW
 cat /dev/acclerometer-bottom 4.0 mV 200 mW
 }}}

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Ticket URL: <https://docs.openmoko.org/trac/ticket/2349#comment:12>
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