diff --git a/target/linux/rockchip/files/arch/arm64/boot/dts/rockchip/rk3568-photonicat.dts b/target/linux/rockchip/files/arch/arm64/boot/dts/rockchip/rk3568-photonicat.dts
index 0b0c3dce16..1730d0e5f8 100644
--- a/target/linux/rockchip/files/arch/arm64/boot/dts/rockchip/rk3568-photonicat.dts
+++ b/target/linux/rockchip/files/arch/arm64/boot/dts/rockchip/rk3568-photonicat.dts
@@ -208,7 +208,7 @@
 	};
 
 	vdd_gpu: regulator-vdd-gpu {
-		compatible regulator-= "pwm";
+		compatible = "pwm-regulator";
 		pwms = <&pwm2 0 5000 1>;
 		regulator-name = "vdd_gpu";
 		regulator-always-on;
@@ -222,7 +222,7 @@
 	};
 
 	vdd_logic: regulator-vdd-logic {
-		compatible regulator-= "pwm";
+		compatible = "pwm-regulator";
 		pwms = <&pwm1 0 5000 1>;
 		regulator-name = "vdd_logic";
 		regulator-always-on;