On Fri, Sep 28, 2018 at 05:41:26PM +0300, Eugeniy Paltsev wrote:
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
Reviewed-by: Daniel Vetter daniel.vetter@ffwll.ch
drivers/gpu/drm/udl/udl_main.c | 7 +------ 1 file changed, 1 insertion(+), 6 deletions(-)
diff --git a/drivers/gpu/drm/udl/udl_main.c b/drivers/gpu/drm/udl/udl_main.c index f455f095a146..1b014d92855b 100644 --- a/drivers/gpu/drm/udl/udl_main.c +++ b/drivers/gpu/drm/udl/udl_main.c @@ -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); -- 2.14.4
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