diff --git a/arch/arm64/boot/dts/rockchip/px30.dtsi b/arch/arm64/boot/dts/rockchip/px30.dtsi
index af7edeb0e351..8db7265f86d9 100644
--- a/arch/arm64/boot/dts/rockchip/px30.dtsi
+++ b/arch/arm64/boot/dts/rockchip/px30.dtsi
@@ -540,7 +540,7 @@
 	};
 
 	pdm: pdm@ff0a0000 {
-		compatible = "rockchip,px30-pdm", "rockchip,pdm";
+		compatible = "rockchip,px30-pdm";
 		reg = <0x0 0xff0a0000 0x0 0x1000>;
 		clocks = <&cru SCLK_PDM>, <&cru HCLK_PDM>;
 		clock-names = "pdm_clk", "pdm_hclk";
diff --git a/arch/arm64/boot/dts/rockchip/rk1808.dtsi b/arch/arm64/boot/dts/rockchip/rk1808.dtsi
index 19fa2fdea5fc..5e1f88db1e39 100644
--- a/arch/arm64/boot/dts/rockchip/rk1808.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk1808.dtsi
@@ -1335,7 +1335,7 @@
 	};
 
 	pdm: pdm@ff800000 {
-		compatible = "rockchip,rk1808-pdm", "rockchip,pdm";
+		compatible = "rockchip,rk1808-pdm";
 		reg = <0x0 0xff800000 0x0 0x1000>;
 		clocks = <&cru SCLK_PDM>, <&cru HCLK_PDM>;
 		clock-names = "pdm_clk", "pdm_hclk";
diff --git a/arch/arm64/boot/dts/rockchip/rk3308.dtsi b/arch/arm64/boot/dts/rockchip/rk3308.dtsi
index cb3403c50de5..dd50c25b5827 100644
--- a/arch/arm64/boot/dts/rockchip/rk3308.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3308.dtsi
@@ -1096,7 +1096,7 @@
 	};
 
 	pdm_8ch: pdm@ff380000 {
-		compatible = "rockchip,rk3308-pdm", "rockchip,pdm";
+		compatible = "rockchip,rk3308-pdm";
 		reg = <0x0 0xff380000 0x0 0x1000>;
 		clocks = <&cru SCLK_PDM>, <&cru HCLK_PDM>;
 		clock-names = "pdm_clk", "pdm_hclk";
diff --git a/arch/arm64/boot/dts/rockchip/rk3568.dtsi b/arch/arm64/boot/dts/rockchip/rk3568.dtsi
index a18054fb66c3..11738279c642 100644
--- a/arch/arm64/boot/dts/rockchip/rk3568.dtsi
+++ b/arch/arm64/boot/dts/rockchip/rk3568.dtsi
@@ -2631,7 +2631,7 @@
 	};
 
 	pdm: pdm@fe440000 {
-		compatible = "rockchip,rk3568-pdm", "rockchip,pdm";
+		compatible = "rockchip,rk3568-pdm";
 		reg = <0x0 0xfe440000 0x0 0x1000>;
 		clocks = <&cru MCLK_PDM>, <&cru HCLK_PDM>;
 		clock-names = "pdm_clk", "pdm_hclk";