Commit 3885c6bb authored by Chris Wilson's avatar Chris Wilson
Browse files

drm/i915: Disable high-precision vblank timestamping for UMS

We only have sufficient information for accurate (sub-frame) timestamping
when the modesetting is under our control.
Reported-by: default avatarChris Clayton <>
Tested-by: default avatarChris Clayton <>
Reviewed-by: default avatarMario Kleiner <>
Signed-off-by: default avatarChris Wilson <>
parent 4041b853
......@@ -752,6 +752,9 @@ static int __init i915_init(void)
driver.driver_features &= ~DRIVER_MODESET;
if (!(driver.driver_features & DRIVER_MODESET))
driver.get_vblank_timestamp = NULL;
return drm_init(&driver);
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