[Bug 231] New: switch display backlight GPIO to "output, off" when suspending

bugzilla-daemon at bugzilla.openmoko.org bugzilla-daemon at bugzilla.openmoko.org
Sat Mar 3 01:34:58 CET 2007


           Summary: switch display backlight GPIO to "output, off" when
           Product: OpenMoko
           Version: current svn head
          Platform: Neo1973
        OS/Version: Linux
            Status: NEW
          Severity: minor
          Priority: P2
         Component: kernel
        AssignedTo: werner at openmoko.org
        ReportedBy: laforge at openmoko.org

Currently, when resuming from suspend, the display backlight GPIO seems to get
set to input or output/high.  This means that even if you have a dark backlight,
it will get to full brightness immediately when resuming, only to get darker
when the pwm driver resumes.

This might be useful for debugging, but we need to change this.  The display
backlight should be dark, until LCM has been fully initialized, and it has to
come back with the exact brightness level that it had before suspend.

Assigning this to Werner, who is already familiar with the code.

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