xiaoxiang781216 commented on code in PR #6551:
URL: https://github.com/apache/incubator-nuttx/pull/6551#discussion_r912361028


##########
drivers/lcd/Kconfig:
##########
@@ -18,6 +18,15 @@ menuconfig LCD
 
 if LCD
 
+config FB_REDRAW

Review Comment:
   @adamkaliszan could you review whether 
https://github.com/apache/incubator-nuttx/pull/6564 could resolve your problem.



##########
drivers/lcd/lcd_framebuffer.c:
##########
@@ -173,7 +173,30 @@ static int lcdfb_updateearea(FAR struct fb_vtable_s 
*vtable,
   fb_coord_t endy;
   int ret;
 
-  DEBUGASSERT(area != NULL);
+  if (area == NULL)
+    {
+      run  = priv->fbmem;
+
+      for (row = 0; row < priv->yres; row++)
+        {
+          ret = pinfo->putrun(pinfo->dev, row, 0, run, priv->xres);
+          if (ret < 0)
+            {
+              return ret;
+            }
+
+          run += priv->stride;
+        }
+
+      /* Just redraw the display 
+       * TODO add new function pointer to xtruct lcd_planeinfo_s
+       * Now calling pointer putrun with npix = 0 activates redrawing display  
+       */
+      
+      ret = pinfo->putrun(pinfo->dev, 0, 0, priv->fbmem, 0);

Review Comment:
   @adamkaliszan could you review whether 
https://github.com/apache/incubator-nuttx/pull/6564 could resolve your problem.



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