#11597 NORM Not Tri: Camera fail during runin

Zarro Boogs per Child bugtracker at laptop.org
Sun Jan 29 09:54:23 EST 2012


#11597: Camera fail during runin
------------------------------------+---------------------------------------
           Reporter:  wad           |       Owner:               
               Type:  defect        |      Status:  new          
           Priority:  normal        |   Milestone:  Not Triaged  
          Component:  not assigned  |     Version:  not specified
         Resolution:                |    Keywords:               
        Next_action:  never set     |    Verified:  0            
Deployment_affected:                |   Blockedby:               
           Blocking:                |  
------------------------------------+---------------------------------------

Comment(by pgf):

 this is the same i2c/camera mis-ordering we've seen before, and we believe
 fixed.  the kernel tries to load the camera before i2c-gpio has
 initialized.
 {{{
 [  669.209599] EXT4-fs (mmcblk0p2): re-mounted. Opts:
 user_xattr,acl,barrier=1,data=ordered
 [  669.307421] dracut: Switching root
 [  669.876921] udev[209]: starting version 161
 [  670.060374] mmp-camera mmp-camera.0: No i2c adapter
 [  670.078900] i2c-gpio i2c-gpio.7: using pins 109 (SDA) and 108 (SCL)
 [  670.092949] olpc-dcon:  Discovered DCON version 2
 [  670.109249] i2c-gpio i2c-gpio.6: using pins 110 (SDA) and 161 (SCL)
 [  671.359038] mousedev: PS/2 mouse device common for all mice
 }}}

 the kernel in this test (631b6a4) missed the probable fix by one commit,
 and less than an hour.  :-/

-- 
Ticket URL: <http://dev.laptop.org/ticket/11597#comment:1>
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