diff --git a/src/drivers/intel/gma/acpi/configure_brightness_levels.asl b/src/drivers/intel/gma/acpi/configure_brightness_levels.asl
index ec519151ec..a24434f27b 100644
--- a/src/drivers/intel/gma/acpi/configure_brightness_levels.asl
+++ b/src/drivers/intel/gma/acpi/configure_brightness_levels.asl
@@ -121,13 +121,13 @@
 
 			/* Local1: loop index (selectable values start at 2 in BRIG) */
 			Store (2, Local1)
-			While (LLess (Local1, SizeOf (BRIG) - 1)) {
+			While (Local1 < SizeOf (BRIG) - 1) {
 				/* Local[23]: adjacent values in BRIG */
 				Store (DeRefOf (BRIG[Local1]), Local2)
 				Store (DeRefOf (BRIG[Local1 + 1]), Local3)
 
-				If (LLess (Local0, Local3)) {
-					If (LLess (Local0, Local2) || LLess (Local0 - Local2, Local3 - Local0)) {
+				If (Local0 < Local3) {
+					If (Local0 < Local2 || Local0 - Local2 < Local3 - Local0) {
 						Return (Local2)
 					} Else {
 						Return (Local3)