[BUG] [PATCH v5 3/7] drm/mediatek: update cursors by using async atomic update

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Hi,

as talked to Bibby directly, this Patch seems to create a bug with touchscreens. Cursor is displayed on old position if changing its position. e.g. Cursor was on X1,Y1 and i touch to new position X2,Y2 the "click" is recognized on right position (i try to ), but cursor is displayed on X1,Y1

have made a small video and uploaded to my gdrive [1]...

here i use lightdm login manager and selecting the username/password-fields alternately. Focus follows, but cursor is always displayed on prior position

tried to revert this commit [2], but there are many depencies failing the revert, have not yet got all depending commits reverted

regards Frank

[1] https://drive.google.com/open?id=1Qy0tYnbO9zNGdjCWY18O-dMYbFuPrq_i
[2] https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=920fffcc891276a855cb3ce1e7361d2e9cb72581
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