static s32 disp_lcd_speed_limit(disp_panel_para *panel, u32 *min_dclk,
				u32 *max_dclk)
{
#if defined(CONFIG_MACH_SUN50IW10)
	unsigned long markid = 0;
	unsigned int qa_val  = 0;
	unsigned int ic_ver  = 0;
	unsigned int display_cfg_flag  = 0;

	/*init unlimit*/
	*min_dclk = 0;
	*max_dclk = 9999;
	qa_val    = readl(0x0300621c);
	qa_val    = (qa_val >> 28) & 0x00000003;
	ic_ver    = readl(0x03000024) & 0x00000007;

	markid = readl(0x03006200) & 0x0000ffff;
	display_cfg_flag = (readl(0x03006218) >> 12) & 0x00000001;

	/*B810 and bad ic not support DSI*/
	if ((qa_val >= 2 && panel->lcd_if == LCD_IF_DSI) ||
	    (markid == 0x4000)) {
		/*bad IC  not support DSI*/
		*min_dclk = 9999;
		*max_dclk = 0;
		goto OUT;
	}

	switch (markid) {
	case 0x3c00: /*A530*/
	{
		/*ic version e*/
		if ((ic_ver >= 4) && (!display_cfg_flag) &&
		    (panel->lcd_if != LCD_IF_DSI)) {
			/*only support DSI*/
			*min_dclk = 9999;
			*max_dclk = 0;
			goto OUT;
		}

		if ((ic_ver == 0) && (panel->lcd_if == LCD_IF_DSI)) {
			/*not support DSI*/
			*min_dclk = 9999;
			*max_dclk = 0;
			goto OUT;
		}

		if (panel->lcd_if == LCD_IF_DSI) {
			if (qa_val == 0)
				*min_dclk = 40; /*1024*600@60*/
			/* normal qa and  B/C ic */
			if (qa_val == 1 && ic_ver == 0) {
				*min_dclk = 64; /*1280*720@60*/
			}
		} else {
			/*LVDS or RGB*/
			*min_dclk = 40; /*1024*600@60*/
		}

		*max_dclk = 85; /*1280*720@60*/
	} break;
	case 0x0400: /*A100*/
	{
		if (panel->lcd_if == LCD_IF_DSI) {
			if (qa_val == 0)
				*min_dclk = 40; /*1024*600@60*/
			/* normal qa and  B/C ic */
			if (qa_val == 1 && ic_ver == 0) {
				*min_dclk = 64; /*1280*720@60*/
			}
		} else {
			/*LVDS or RGB*/
			*min_dclk = 40; /*1024*600@60*/
		}

		*max_dclk = 85; /*1280*720@60*/
	} break;
	case 0x1400: /*A133*/
	{
		if (panel->lcd_if == LCD_IF_DSI) {
			if ((qa_val == 0 && ic_ver == 0) ||
			    (qa_val == 1 && ic_ver == 3)) {
				/*D 01 or B/C 00*/
				*min_dclk = 40;
			} else if (qa_val == 1 && ic_ver == 0) {
				/*B/C 01*/
				*min_dclk = 64; /*1280*720@60*/
			}
		}
		*max_dclk = 200; /*1920*1200@60*/
	} break;
	case 0x1000: /*R818/MR813*/
	case 0x2000: {
		/*not bad ic*/
		*max_dclk = 200; /*1920*1200@60*/
	} break;
	case 0x0800: { /*T509*/
		if (panel->lcd_if == LCD_IF_DSI) {
			if (qa_val == 0 && ic_ver == 0)
				*min_dclk = 40;/*1024*600@60*/
			else
				*min_dclk = 0;
		}
		*max_dclk = 200; /*1920*1200@60*/
	} break;
	default:
		break;
	}

OUT:
	tick_printf(
		"soc ic_ver:0x%x, qa_val:0x%x, markid:0x%x dclk[%u-%u] display_cfg_flag:%d\n",
		ic_ver, qa_val, markid, *min_dclk, *max_dclk, display_cfg_flag);
#endif

	/*unlimit */
	return 0;
}