drm/udl: Don't set struct drm_crtc_state.no_vblank explicitly

As udl does not initialize vblanking, atomic helpers initialize the
value of struct drm_crtc_state.no_vblank to be true. No need to set
it from within the driver.
Signed-off-by: Thomas Zimmermann <tzimmermann@suse.de>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>
Reviewed-by: Daniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20200129120531.6891-13-tzimmermann@suse.de

drivers/gpu/drm/udl/udl_modeset.c

@@ -375,8 +375,6 @@ udl_simple_display_pipe_enable(struct drm_simple_display_pipe *pipe,
 	char *wrptr;
 	int color_depth = UDL_COLOR_DEPTH_16BPP;
 
-	crtc_state->no_vblank = true;
-
 	buf = (char *)udl->mode_buf;
 
 	/* This first section has to do with setting the base address on the
@@ -428,14 +426,6 @@ udl_simple_display_pipe_disable(struct drm_simple_display_pipe *pipe)
 	udl_submit_urb(dev, urb, buf - (char *)urb->transfer_buffer);
 }
 
-static int
-udl_simple_display_pipe_check(struct drm_simple_display_pipe *pipe,
-			      struct drm_plane_state *plane_state,
-			      struct drm_crtc_state *crtc_state)
-{
-	return 0;
-}
-
 static void
 udl_simple_display_pipe_update(struct drm_simple_display_pipe *pipe,
 			       struct drm_plane_state *old_plane_state)
@@ -457,7 +447,6 @@ struct drm_simple_display_pipe_funcs udl_simple_display_pipe_funcs = {
 	.mode_valid = udl_simple_display_pipe_mode_valid,
 	.enable = udl_simple_display_pipe_enable,
 	.disable = udl_simple_display_pipe_disable,
-	.check = udl_simple_display_pipe_check,
 	.update = udl_simple_display_pipe_update,
 	.prepare_fb = drm_gem_fb_simple_display_pipe_prepare_fb,
 };