+static unsigned long compute_hozval(unsigned long xres, unsigned long lcdcon2)
+{
+ unsigned long value;
+
+ if (!(cpu_is_at91sam9261() || cpu_is_at32ap7000()))
+ return xres;
+
+ value = xres;
+ if ((lcdcon2 & ATMEL_LCDC_DISTYPE) != ATMEL_LCDC_DISTYPE_TFT) {
+ /* STN display */
+ if ((lcdcon2 & ATMEL_LCDC_DISTYPE) == ATMEL_LCDC_DISTYPE_STNCOLOR) {
+ value *= 3;
+ }
+ if ( (lcdcon2 & ATMEL_LCDC_IFWIDTH) == ATMEL_LCDC_IFWIDTH_4
+ || ( (lcdcon2 & ATMEL_LCDC_IFWIDTH) == ATMEL_LCDC_IFWIDTH_8
+ && (lcdcon2 & ATMEL_LCDC_SCANMOD) == ATMEL_LCDC_SCANMOD_DUAL ))
+ value = DIV_ROUND_UP(value, 4);
+ else
+ value = DIV_ROUND_UP(value, 8);
+ }
+
+ return value;
+}