diff --git a/arch/riscv/boot/dts/thead/light-lpi4a-ref.dts b/arch/riscv/boot/dts/thead/light-lpi4a-ref.dts
index c70a08c08..38f790de6 100644
--- a/arch/riscv/boot/dts/thead/light-lpi4a-ref.dts
+++ b/arch/riscv/boot/dts/thead/light-lpi4a-ref.dts
@@ -1449,14 +1449,14 @@
 			300000	650000
 			800000	700000
 			1500000	800000
-			2000000	1000000
+			1992000	1000000
 		>;
 		light,dvddm-operating-points = <
 			/* kHz   uV */
 			300000	800000
 			800000	800000
 			1500000	800000
-			2000000	1000000
+			1992000	1000000
 		>;
 	};
 	c910_1: cpu@1 {
@@ -1465,14 +1465,14 @@
 			300000	650000
 			800000	700000
 			1500000	800000
-			2000000	1000000
+			1992000	1000000
 		>;
 		light,dvddm-operating-points = <
 			/* kHz   uV */
 			300000	800000
 			800000	800000
 			1500000	800000
-			2000000	1000000
+			1992000	1000000
 		>;
 	};
 	c910_2: cpu@2 {
@@ -1482,14 +1482,14 @@
 			300000	650000
 			800000	700000
 			1500000	800000
-			2000000	1000000
+			1992000	1000000
 		>;
 		light,dvddm-operating-points = <
 			/* kHz   uV */
 			300000	800000
 			800000	800000
 			1500000	800000
-			2000000	1000000
+			1992000	1000000
 		>;
 	};
 	c910_3: cpu@3 {
@@ -1499,14 +1499,14 @@
 			300000	650000
 			800000	700000
 			1500000	800000
-			2000000	1000000
+			1992000	1000000
 		>;
 		light,dvddm-operating-points = <
 			/* kHz   uV */
 			300000	800000
 			800000	800000
 			1500000	800000
-			2000000	1000000
+			1992000	1000000
 		>;
 	};
 };