#9631 NORM 1.5-F11: DCON doesn't assert correct status during resume
Zarro Boogs per Child
bugtracker at laptop.org
Fri Nov 6 12:55:21 EST 2009
#9631: DCON doesn't assert correct status during resume
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Reporter: pgf | Owner: wad
Type: defect | Status: new
Priority: normal | Milestone: 1.5-F11
Component: hardware | Version: not specified
Keywords: | Next_action: never set
Verified: 0 | Deployment_affected:
Blockedby: | Blocking:
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while the system is running, freezing/unfreezing the dcon works fine.
when the system is resuming, the dcon doesn't assert the correct status
(0x01) on its two status lines at the time of the first scanline interrupt
after the DCON unload happens. a workaround has been installed in the
driver to treat this case specially, otherwise we will wait and timeout
after a second, looking for the "right" interrupt. the missing status
signal is troubling, however.
(missing status assertion (of DCONSTAT0) verified using o'scope.)
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Ticket URL: <http://dev.laptop.org/ticket/9631>
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