#11213 NORM 1.75-so: dcon doesn't stay frozen while booting
Zarro Boogs per Child
bugtracker at laptop.org
Sat Sep 3 11:26:09 EDT 2011
#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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Comment(by pgf):
Replying to [comment:2 dsd]:
>
> (I know I said that yesterday that this approach doesn't work, well I
was storing the gpio_get_value() result in a u8 based on some other code I
saw, but in this case, 0x4000 is returned when the DCON is unfrozen. Sorry
for that distraction...)
that behavior is a bug in the pxa gpio code. Documentation/gpio.txt is
pretty clear that the return is 0 or 1, and that "The values are boolean,
zero for low, nonzero for high."
i noticed this behavior some time ago and verified that other gpio
implementations get it right, but forgot about it. sorry.
--
Ticket URL: <http://dev.laptop.org/ticket/11213#comment:3>
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