wb_state
struct rcar_du_wb_conn_state *wb_state =
wb_state->format = rcar_du_format_info(fb->format->format);
if (wb_state->format == NULL) {
struct rcar_du_wb_conn_state *wb_state;
wb_state = to_rcar_wb_conn_state(state);
cfg->pixelformat = wb_state->format->v4l2;
for (i = 0; i < wb_state->format->planes; ++i)