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OMAP: DSS2: don't power off a panel twice

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If we blank the panel by
echo 1 > /sys/devices/platform/omapfb/graphics/fb0/blank

Then, we reboot the sytem, the kernel will crash at
drivers/video/omap2/dss/core.c:323

This is because the panel is closed twice. Now check the state of a dssdev
to forbid a panel is power on or power off twice.

Signed-off-by: Stanley.Miao <stanley.miao@windriver.com>
Signed-off-by: Tomi Valkeinen <tomi.valkeinen@nokia.com>
This commit is contained in:
Stanley.Miao 2010-09-03 05:03:48 +02:00 • committed by Tomi Valkeinen
commit 18016e35d4
6 changed files with 36 additions and 0 deletions
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