static int mdss_dsi_wait4video_eng_busy(struct mdss_dsi_ctrl_pdata *ctrl)
{
	int ret = 0;

	if (ctrl->panel_mode == DSI_CMD_MODE)
		return ret;

	if (ctrl->ctrl_state & CTRL_STATE_MDP_ACTIVE) {
		mdss_dsi_wait4video_done(ctrl);
		
		usleep(4000);
		ret = 1;
	}

	return ret;
}
static void mdss_dsi_wait4video_eng_busy(struct mdss_dsi_ctrl_pdata *ctrl)
{
	mdss_dsi_wait4video_done(ctrl);
	/* delay 4 ms to skip BLLP */
	usleep(4000);
}