diff --git a/arch/arm64/boot/dts/freescale/imx8mm.dtsi b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
index 738024baaa57..54faf83cb436 100644
--- a/arch/arm64/boot/dts/freescale/imx8mm.dtsi
+++ b/arch/arm64/boot/dts/freescale/imx8mm.dtsi
@@ -1408,7 +1408,7 @@ gpu_3d: gpu@38000000 {
 			assigned-clocks = <&clk IMX8MM_CLK_GPU3D_CORE>,
 					  <&clk IMX8MM_GPU_PLL_OUT>;
 			assigned-clock-parents = <&clk IMX8MM_GPU_PLL_OUT>;
-			assigned-clock-rates = <0>, <1000000000>;
+			assigned-clock-rates = <0>, <800000000>;
 			power-domains = <&pgc_gpu>;
 		};
 
@@ -1423,7 +1423,7 @@ gpu_2d: gpu@38008000 {
 			assigned-clocks = <&clk IMX8MM_CLK_GPU2D_CORE>,
 					  <&clk IMX8MM_GPU_PLL_OUT>;
 			assigned-clock-parents = <&clk IMX8MM_GPU_PLL_OUT>;
-			assigned-clock-rates = <0>, <1000000000>;
+			assigned-clock-rates = <0>, <800000000>;
 			power-domains = <&pgc_gpu>;
 		};