#10143 NORM Not Tri: Use interrupts instead of polling for VDMA_C_DONE

[Zarro Boogs per Child]

#10143: Use interrupts instead of polling for VDMA_C_DONE
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           Reporter:  jon.nettleton  |       Owner:  corbet       
               Type:  enhancement    |      Status:  new          
           Priority:  normal         |   Milestone:  Not Triaged  
          Component:  kernel         |     Version:  not specified
         Resolution:                 |    Keywords:               
        Next_action:  never set      |    Verified:  0            
Deployment_affected:                 |   Blockedby:               
           Blocking:                 |  
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Comment(by corbet):

 Actually, I already fixed this a little while back.  It's in the 2.6.34
 tree, but I guess I never pushed it to 2.6.31; I'll take care of that
 shortly.

 The history, in case you're interested: this was another victim of the "C3
 state corrupts DMA" Via hardware bug.  I found that I had a higher chance
 of getting the data through intact by busy-waiting; now, of course, we
 know why.  I lost more than one keyboard to forehead blood damage before I
 figured that one out.

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Ticket URL: <http://dev.laptop.org/ticket/10143#comment:1>
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