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DRM: UDL: get rid of useless vblank initialization

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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: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com>
Signed-off-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20180928144126.21598-1-Eugeniy.Paltsev@synopsys.com
This commit is contained in:
Eugeniy Paltsev 2018-09-28 17:41:26 +03:00 committed by Daniel Vetter
parent 8dc830e4cf
commit 32e932e37e
1 changed files with 1 additions and 6 deletions
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7
drivers/gpu/drm/udl/udl_main.c
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@ -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);