#11288 NORM 1.75-so: XO-1.75 accelerometer chip change

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#11288: XO-1.75 accelerometer chip change
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           Reporter:  Quozl   |       Owner:  Quozl        
               Type:  task    |      Status:  new          
           Priority:  normal  |   Milestone:  1.75-software
          Component:  kernel  |     Version:               
         Resolution:          |    Keywords:               
        Next_action:  design  |    Verified:  0            
Deployment_affected:          |   Blockedby:               
           Blocking:          |  
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Changes (by Quozl):

  * component:  ofw - open firmware => kernel
  * milestone:  1.75-firmware => 1.75-software


Comment:

 Included in Q4B12, tested locally, now it's over to Saadia for Linux
 kernel changes.

 * the i2c device address changes from 0x3a to 0x32, which means it should
 be possible to detect whichever is present,
 * there are two bytes per vector instead of one,
 * the bits for activating self test have moved from CTRL_REG1 to
 CTRL_REG4,
 * the self test should be done in high resolution mode (CTRL_REG4 bit 3),
 * the self test result expected range has changed, and in particular for
 the Z axis is much greater.

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Ticket URL: <http://dev.laptop.org/ticket/11288#comment:3>
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