#11213 NORM 1.75-so: dcon doesn't stay frozen while booting

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#11213: dcon doesn't stay frozen while booting
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           Reporter:  pgf       |       Owner:  wad                              
               Type:  defect    |      Status:  new                              
           Priority:  normal    |   Milestone:  1.75-software                    
          Component:  display   |     Version:  Development build as of this date
         Resolution:            |    Keywords:                                   
        Next_action:  diagnose  |    Verified:  0                                
Deployment_affected:            |   Blockedby:                                   
           Blocking:            |  
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Description changed by Quozl:

Old description:

> if olpc.fth leaves the screen frozen, it should remain so until olpc-
> session or sugar causes an unfreeze.
>
> but something's causing an unfreeze.
>
> the attached patch to olpc_dcon_xo_1_75.c helps, in that the dcon driver
> itself will no longer cause an unfreeze, bu something else is causing an
> early unfreeze and then an immediate thaw.  it happens quite late, so i
> don't think it's a reinit of the SoC's gpio pins.
>

> the attached patch to olpc_dcon_xo_1_75.c works, but doesn't a

New description:

 if olpc.fth leaves the screen frozen, it should remain so until olpc-
 session or sugar causes an unfreeze.

 but something's causing an unfreeze.

 the attached patch to olpc_dcon_xo_1_75.c helps, in that the dcon driver
 itself will no longer cause an unfreeze, bu something else is causing an
 early unfreeze and then an immediate thaw.  it happens quite late, so i
 don't think it's a reinit of the SoC's gpio pins.

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Ticket URL: <http://dev.laptop.org/ticket/11213#comment:1>
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