int decon_reg_stop(struct decon_psr_info *psr)
{
	int ret = 0;

	if ((psr->psr_mode == S3C_FB_MIPI_COMMAND_MODE) &&
			(psr->trig_mode == DECON_HW_TRIG)) {
		decon_reg_set_trigger(psr->trig_mode, DECON_TRIG_DISABLE);
	}

	/* timeout : 200ms */
	ret = decon_reg_wait_linecnt_is_zero_timeout(2000 * 100);
	if (ret)
		goto err;

	if (psr->psr_mode == S3C_FB_MIPI_COMMAND_MODE)
		decon_reg_direct_on_off(0);
	else
		decon_reg_per_frame_off();

	/* timeout : 20ms */
	ret = decon_reg_wait_stop_status_timeout(2000 * 10);
	if (ret)
		goto err;

err:
	ret = decon_reg_reset();

	return ret;
}
void decon_reg_start(struct decon_psr_info *psr)
{
	decon_reg_direct_on_off(1);

	decon_reg_update_standalone();

	if ((psr->psr_mode == S3C_FB_MIPI_COMMAND_MODE) &&
			(psr->trig_mode == DECON_HW_TRIG))
		decon_reg_set_trigger(psr->trig_mode, DECON_TRIG_ENABLE);
}
void decon_reg_configure_lcd(struct decon_lcd *lcd_info)
{
	decon_reg_set_rgb_order(DECON_RGB);
	decon_reg_set_porch(lcd_info);

	if (lcd_info->mode == VIDEO_MODE)
		decon_reg_set_linecnt_op_threshold(lcd_info->yres - 1);

	decon_reg_set_clkval(0);

	decon_reg_set_freerun_mode(1);
	decon_reg_direct_on_off(0);
	decon_reg_update_standalone();
}
static void decon_activate_window_dma(struct decon_device *decon, unsigned int index)
{
	decon_reg_direct_on_off(decon->id, 1);
	decon_reg_update_standalone(decon->id);
}