+static int clcd_check(struct clcd_fb *fb, struct fb_var_screeninfo
+		*var)
+{
+	var->xres_virtual = var->xres = (var->xres + 15) & ~15;
+	var->yres_virtual = var->yres = (var->yres + 1) & ~1;
+
+	var->nonstd = 0;
+	var->accel_flags = 0;

This looks insufficient.