[Trac #499] Camera Image Very Noisy

[Zarro Boogs per Child]

#499: Camera Image Very Noisy
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 Reporter:  mfoster   |        Owner:  wad    
     Type:  defect    |       Status:  new    
 Priority:  high      |    Milestone:  BTest-3
Component:  hardware  |   Resolution:         
 Keywords:  relnote   |  
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Changes (by wmb at firmworks.com):

 * cc: corbet at lwn.net, lwalter42 at gmail.com (added)

Comment:

 OVT reports that there is a problem in 565 mode that can be worked around
 by rewriting camera register 0x11 after all the other registers have been
 set.

 I tested this workaround and it works.  I added "1 h# 11 ov!"  to the end
 of the camera register init sequence in OFW(earlier in the sequence, that
 same value is written to the same register).  With this workaround, I have
 done about 50 reinits of the camera chip and the image is always good - no
 red or green speckles.  Without the workaround, the mean time to failure
 is about 2 reinits.

 This workaround needs to be applied to the Linux driver too.

-- 
Ticket URL: <http://dev.laptop.org/ticket/499#comment:22>
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