diff --git a/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi b/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi
index a7a125c..a5cc01d 100644
--- a/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi
+++ b/arch/arm/dts/stm32mp157a-dk1-u-boot.dtsi
@@ -124,6 +124,8 @@
 
 	/* VCO = 1300.0 MHz => P = 650 (CPU) */
 	pll1: st,pll@0 {
+		compatible = "st,stm32mp1-pll";
+		reg = <0>;
 		cfg = < 2 80 0 0 0 PQR(1,0,0) >;
 		frac = < 0x800 >;
 		u-boot,dm-pre-reloc;
@@ -131,6 +133,8 @@
 
 	/* VCO = 1066.0 MHz => P = 266 (AXI), Q = 533 (GPU), R = 533 (DDR) */
 	pll2: st,pll@1 {
+		compatible = "st,stm32mp1-pll";
+		reg = <1>;
 		cfg = < 2 65 1 0 0 PQR(1,1,1) >;
 		frac = < 0x1400 >;
 		u-boot,dm-pre-reloc;
@@ -138,6 +142,8 @@
 
 	/* VCO = 417.8 MHz => P = 209, Q = 24, R = 11 */
 	pll3: st,pll@2 {
+		compatible = "st,stm32mp1-pll";
+		reg = <2>;
 		cfg = < 1 33 1 16 36 PQR(1,1,1) >;
 		frac = < 0x1a04 >;
 		u-boot,dm-pre-reloc;
@@ -145,6 +151,8 @@
 
 	/* VCO = 594.0 MHz => P = 99, Q = 74, R = 74 */
 	pll4: st,pll@3 {
+		compatible = "st,stm32mp1-pll";
+		reg = <3>;
 		cfg = < 3 98 5 7 7 PQR(1,1,1) >;
 		u-boot,dm-pre-reloc;
 	};