diff --git a/arch/arm/boot/dts/rk3506-evb1-v10.dtsi b/arch/arm/boot/dts/rk3506-evb1-v10.dtsi
index d4ee71a661ba..12bc05acb63a 100644
--- a/arch/arm/boot/dts/rk3506-evb1-v10.dtsi
+++ b/arch/arm/boot/dts/rk3506-evb1-v10.dtsi
@@ -5,7 +5,6 @@
 
 #include <dt-bindings/display/drm_mipi_dsi.h>
 #include <dt-bindings/input/rk-input.h>
-#include <dt-bindings/mfd/rockchip-flexbus.h>
 
 / {
 	model = "Rockchip RK3506 EVB1 V10 Board";
@@ -581,33 +580,6 @@
 	status = "disabled";
 };
 
-&flexbus {
-	rockchip,flexbus0-opmode = <ROCKCHIP_FLEXBUS0_OPMODE_DAC>;
-	rockchip,flexbus1-opmode = <ROCKCHIP_FLEXBUS1_OPMODE_ADC>;
-	status = "disabled";
-};
-
-&flexbus_adc {
-	pinctrl-names = "default";
-	/* 12bit ADC device */
-	pinctrl-0 = <&flexbus1_clk_pins
-		     &flexbus1_d0_pins &flexbus1_d1_pins &flexbus1_d2_pins &flexbus1_d3_pins
-		     &flexbus1_d4_pins &flexbus1_d5_pins &flexbus1_d6_pins &flexbus1_d7_pins
-		     &flexbus1_d8_pins &flexbus1_d9_pins &flexbus1_d10_pins &flexbus1_d11_pins>;
-	status = "disabled";
-};
-
-&flexbus_dac {
-	pinctrl-names = "default";
-	/* 14bit DAC device */
-	pinctrl-0 = <&flexbus0_clk_pins
-		     &flexbus0_d0_pins &flexbus0_d1_pins &flexbus0_d2_pins &flexbus0_d3_pins
-		     &flexbus0_d4_pins &flexbus0_d5_pins &flexbus0_d6_pins &flexbus0_d7_pins
-		     &flexbus0_d8_pins &flexbus0_d9_pins &flexbus0_d10_pins &flexbus0_d11_pins
-		     &flexbus0_d12_pins &flexbus0_d13_pins>;
-	status = "disabled";
-};
-
 &flexbus_fspi {
 	pinctrl-names = "default";
 	pinctrl-0 = <&flexbus0m1_pins &flexbus0_clk_pins