diff --git a/arch/arm64/boot/dts/mediatek/mt6795.dtsi b/arch/arm64/boot/dts/mediatek/mt6795.dtsi
index 134cfa77e3b1..6dd706b27830 100644
--- a/arch/arm64/boot/dts/mediatek/mt6795.dtsi
+++ b/arch/arm64/boot/dts/mediatek/mt6795.dtsi
@@ -547,8 +547,7 @@ uart1: serial@11003000 {
 		};
 
 		apdma: dma-controller@11000380 {
-			compatible = "mediatek,mt6795-uart-dma",
-				     "mediatek,mt6577-uart-dma";
+			compatible = "mediatek,mt6795-uart-dma";
 			reg = <0 0x11000380 0 0x60>,
 			      <0 0x11000400 0 0x60>,
 			      <0 0x11000480 0 0x60>,
@@ -568,7 +567,6 @@ apdma: dma-controller@11000380 {
 			dma-requests = <8>;
 			clocks = <&pericfg CLK_PERI_AP_DMA>;
 			clock-names = "apdma";
-			mediatek,dma-33bits;
 			#dma-cells = <1>;
 		};