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Commit a5b534bb authored by Dave Stevenson's avatar Dave Stevenson Committed by Phil Elwell
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drm/vc4: Resolve the vblank warnings on mode switching 

The details over when and how a driver is to service the
vblank events are sketchy, and the fkms driver was triggering
a kernel warning every time the crtc was enabled or disabled.

Copy the event handling as used by the vc4-kms driver slightly
more closely, and we avoid the warnings.

https://github.com/raspberrypi/linux/issues/3020



Signed-off-by: default avatarDave Stevenson <dave.stevenson@raspberrypi.org>
parent ea858388
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