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| author | Jesse Barnes <jbarnes@virtuousgeek.org> | 2010-08-18 13:20:54 -0700 |
|---|---|---|
| committer | Eric Anholt <eric@anholt.net> | 2010-08-21 22:59:23 -0700 |
| commit | 9d0498a2bf7455159b317f19531a3e5db2ecc9c4 (patch) | |
| tree | 41f2a8b1013d2ee12852d8885b9952120f3d6ebb /drivers/usb/host/ohci-sh.c | |
| parent | d240f20f545fa4ed78ce48d1eb62ab529f2b1467 (diff) | |
| download | blackbird-op-linux-9d0498a2bf7455159b317f19531a3e5db2ecc9c4.tar.gz blackbird-op-linux-9d0498a2bf7455159b317f19531a3e5db2ecc9c4.zip | |
drm/i915: wait for actual vblank, not just 20ms
Waiting for a hard coded 20ms isn't always enough to make sure a vblank
period has actually occurred, so add code to make sure we really have
passed through a vblank period (or that the pipe is off when disabling).
This prevents problems with mode setting and link training, and seems to
fix a bug like https://bugs.freedesktop.org/show_bug.cgi?id=29278, but
on an HP 8440p instead. Hopefully also fixes
https://bugs.freedesktop.org/show_bug.cgi?id=29141.
Signed-off-by: Jesse Barnes <jbarnes@virtuousgeek.org>
Signed-off-by: Eric Anholt <eric@anholt.net>
Diffstat (limited to 'drivers/usb/host/ohci-sh.c')
0 files changed, 0 insertions, 0 deletions
