DP_VB_ID          777 drivers/gpu/drm/rockchip/cdn-dp-reg.c 	ret = cdn_dp_reg_write_bit(dp, DP_VB_ID, 2, 1, 0);
DP_VB_ID          822 drivers/gpu/drm/rockchip/cdn-dp-reg.c 	ret = cdn_dp_reg_write_bit(dp, DP_VB_ID, 4, 1, enable);