Commit 32e932e3 authored by Eugeniy Paltsev's avatar Eugeniy Paltsev Committed by Daniel Vetter

DRM: UDL: get rid of useless vblank initialization

UDL doesn't support vblank functionality so we don't need to
initialize vblank here (we are able to send page flip
completion events even without vblank initialization)

Moreover current drm_vblank_init call with num_crtcs > 0 causes
sending DRM_EVENT_FLIP_COMPLETE event with zero timestamp every
time. This breaks userspace apps (for example weston) which
relies on timestamp value.

Cc: stable@vger.kernel.org
Signed-off-by: default avatarEugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: default avatarDaniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20180928144126.21598-1-Eugeniy.Paltsev@synopsys.com
parent 8dc830e4
......@@ -350,15 +350,10 @@ int udl_driver_load(struct drm_device *dev, unsigned long flags)
if (ret)
goto err;
ret = drm_vblank_init(dev, 1);
if (ret)
goto err_fb;
drm_kms_helper_poll_init(dev);
return 0;
err_fb:
udl_fbdev_cleanup(dev);
err:
if (udl->urbs.count)
udl_free_urb_list(dev);
......
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