diff --git a/include/linux/units.h b/include/linux/units.h
index aaf716364ec3..92c234e71cab 100644
--- a/include/linux/units.h
+++ b/include/linux/units.h
@@ -4,6 +4,10 @@
 
 #include <linux/kernel.h>
 
+#define MILLIWATT_PER_WATT	1000L
+#define MICROWATT_PER_MILLIWATT	1000L
+#define MICROWATT_PER_WATT	1000000L
+
 #define ABSOLUTE_ZERO_MILLICELSIUS -273150
 
 static inline long milli_kelvin_to_millicelsius(long t)