From mboxrd@z Thu Jan 1 00:00:00 1970 From: eugeniy.paltsev@synopsys.com (Eugeniy Paltsev) Date: Tue, 23 Oct 2018 11:01:14 +0000 Subject: [PATCH] DRM: UDL: get rid of useless vblank initialization In-Reply-To: <20180928144126.21598-1-Eugeniy.Paltsev@synopsys.com> References: <20180928144126.21598-1-Eugeniy.Paltsev@synopsys.com> List-ID: Message-ID: <1540292472.19916.13.camel@synopsys.com> To: linux-snps-arc@lists.infradead.org Hi David, Maybe you have any comments or remarks about this patch? And if you don't could you please apply it. Thanks! On Fri, 2018-09-28@17:41 +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. > > Reviewed-by: Daniel Vetter > Cc: stable at vger.kernel.org > Signed-off-by: Eugeniy Paltsev > --- > 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); -- Eugeniy Paltsev