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Commit 359186b1 authored by Dawid Kurek's avatar Dawid Kurek Committed by Adam Jackson
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modesetting: Blacklist EVDI devices from PRIME sync



UDL (usb) devices are blacklisted because of they weird behaviour when
it comes to vblank events. As EVDI uses very similar model of handling
vblanks it should be treated similarly.

When doing a page flip, EVDI does not wait for real vblank, but
simulates it by adding constant delay. It also does not support
DRM_IOCTL_WAIT_VBLANK.

In contrast to UDL, EVDI uses platform devices, thus instead of 'usb' in
path they all have 'platform'.

It is possible to blacklist by 'platform', so without explicitly saying
'evdi', but it might be misleading when it comes to real reason for it.

Signed-off-by: default avatarDawid Kurek <dawid.kurek@displaylink.com>
(cherry picked from commit fbd80b2c)
parent 5571318f
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