--- 2dfc668086ffed4f7b2bb1be027f3ad42b0c255b
+++ 0f1252d5ddb9abf7c7eba8163491ad0d8b9d23b5
@@ -14,6 +14,10 @@
 #ifndef AVS_H
 #define AVS_H
 
+#define VOLTAGE_MIN  700 /* mV */
+#define VOLTAGE_MAX  1400
+#define VOLTAGE_STEP 25
+
 int __init avs_init(int (*set_vdd)(int), u32 freq_cnt, u32 freq_idx);
 void __exit avs_exit(void);