drm/vc4: Stop updating plane->fb/crtc

We want to get rid of plane->fb/crtc on atomic drivers. Stop setting
them.

Cc: Eric Anholt <eric@anholt.net>
Signed-off-by: NVille Syrjälä <ville.syrjala@linux.intel.com>
Reviewed-by: NMaarten Lankhorst <maarten.lankhorst@linux.intel.com>
Reviewed-by: NDaniel Vetter <daniel.vetter@ffwll.ch>
Link: https://patchwork.freedesktop.org/patch/msgid/20180525185045.29689-13-ville.syrjala@linux.intel.comReviewed-by: NEric Anholt <eric@anholt.net>
Reviewed-by: NSinclair Yeh <syeh@vmware.com>

drivers/gpu/drm/vc4/vc4_crtc.c

@@ -818,7 +818,6 @@ static int vc4_async_page_flip(struct drm_crtc *crtc,
 	 * is released.
 	 */
 	drm_atomic_set_fb_for_plane(plane->state, fb);
-	plane->fb = fb;
 
 	vc4_queue_seqno_cb(dev, &flip_state->cb, bo->seqno,
 			   vc4_async_page_flip_complete);
@@ -1013,7 +1012,6 @@ static int vc4_crtc_bind(struct device *dev, struct device *master, void *data)
 	drm_crtc_init_with_planes(drm, crtc, primary_plane, NULL,
 				  &vc4_crtc_funcs, NULL);
 	drm_crtc_helper_add(crtc, &vc4_crtc_helper_funcs);
-	primary_plane->crtc = crtc;
 	vc4_crtc->channel = vc4_crtc->data->hvs_channel;
 	drm_mode_crtc_set_gamma_size(crtc, ARRAY_SIZE(vc4_crtc->lut_r));
 	drm_crtc_enable_color_mgmt(crtc, 0, false, crtc->gamma_size);
@@ -1049,7 +1047,6 @@ static int vc4_crtc_bind(struct device *dev, struct device *master, void *data)
 	cursor_plane = vc4_plane_init(drm, DRM_PLANE_TYPE_CURSOR);
 	if (!IS_ERR(cursor_plane)) {
 		cursor_plane->possible_crtcs = 1 << drm_crtc_index(crtc);
-		cursor_plane->crtc = crtc;
 		crtc->cursor = cursor_plane;
 	}