diff --git a/drivers/video/fbdev/tcx.c b/drivers/video/fbdev/tcx.c
index f9a0085ad72b..ca9e84e8d860 100644
--- a/drivers/video/fbdev/tcx.c
+++ b/drivers/video/fbdev/tcx.c
@@ -428,7 +428,7 @@ static int tcx_probe(struct platform_device *op)
 			j = i;
 			break;
 		}
-		par->mmap_map[i].poff = op->resource[j].start;
+		par->mmap_map[i].poff = op->resource[j].start - info->fix.smem_start;
 	}
 
 	info->fbops = &tcx_ops;