diff --git a/src/mainboard/google/kahlee/variants/liara/devicetree.cb b/src/mainboard/google/kahlee/variants/liara/devicetree.cb
index eef984a6d7..bc6c6434e4 100644
--- a/src/mainboard/google/kahlee/variants/liara/devicetree.cb
+++ b/src/mainboard/google/kahlee/variants/liara/devicetree.cb
@@ -60,7 +60,7 @@ chip soc/amd/stoneyridge
 	end
 	device domain 0 on
 		device pci 0.0 on  end # Root Complex
-		device pci 0.2 off end # IOMMU
+		device pci 0.2 off end # IOMMU (Disabled for performance and battery)
 		device pci 1.0 on  end # Internal Graphics P2P bridge 0x98e4
 		device pci 1.1 on  end # Internal Multimedia
 		device pci 2.0 on  end # PCIe Host Bridge