diff --git a/tests/drivers/build_all/regulator/i2c.dtsi b/tests/drivers/build_all/regulator/i2c.dtsi
index aad52927f42..0d6e9c4c1a2 100644
--- a/tests/drivers/build_all/regulator/i2c.dtsi
+++ b/tests/drivers/build_all/regulator/i2c.dtsi
@@ -97,3 +97,13 @@ cp9314@6 {
 
 	cirrus,initial-switched-capacitor-mode = "2:1";
 };
+
+mpm54304@7 {
+	compatible = "mps,mpm54304";
+	reg = <0x7>;
+
+	BUCK1 {};
+	BUCK2 {};
+	BUCK3 {};
+	BUCK4 {};
+};