diff --git a/arch/arm/dts/stm32mp157a-dk1.dts b/arch/arm/dts/stm32mp157a-dk1.dts
index adb2464..1d5c1a6 100644
--- a/arch/arm/dts/stm32mp157a-dk1.dts
+++ b/arch/arm/dts/stm32mp157a-dk1.dts
@@ -7,7 +7,7 @@
 /dts-v1/;
 
 #include "stm32mp157c.dtsi"
-#include "stm32mp157-pinctrl.dtsi"
+#include "stm32mp157xac-pinctrl.dtsi"
 #include <dt-bindings/gpio/gpio.h>
 #include <dt-bindings/mfd/st,stpmic1.h>
 
@@ -28,6 +28,17 @@
 		reg = <0xc0000000 0x20000000>;
 	};
 
+	reserved-memory {
+		#address-cells = <1>;
+		#size-cells = <1>;
+		ranges;
+
+		gpu_reserved: gpu@d4000000 {
+			reg = <0xd4000000 0x4000000>;
+			no-map;
+		};
+	};
+
 	led {
 		compatible = "gpio-leds";
 		blue {
@@ -65,6 +76,47 @@
 	};
 };
 
+&gpu {
+	contiguous-area = <&gpu_reserved>;
+	status = "okay";
+};
+
+&i2c1 {
+	pinctrl-names = "default", "sleep";
+	pinctrl-0 = <&i2c1_pins_a>;
+	pinctrl-1 = <&i2c1_pins_sleep_a>;
+	i2c-scl-rising-time-ns = <100>;
+	i2c-scl-falling-time-ns = <7>;
+	status = "okay";
+	/delete-property/dmas;
+	/delete-property/dma-names;
+
+	hdmi-transmitter@39 {
+		compatible = "sil,sii9022";
+		reg = <0x39>;
+		iovcc-supply = <&v3v3_hdmi>;
+		cvcc12-supply = <&v1v2_hdmi>;
+		reset-gpios = <&gpioa 10 GPIO_ACTIVE_LOW>;
+		interrupts = <1 IRQ_TYPE_EDGE_FALLING>;
+		interrupt-parent = <&gpiog>;
+		pinctrl-names = "default", "sleep";
+		pinctrl-0 = <&ltdc_pins_a>;
+		pinctrl-1 = <&ltdc_pins_sleep_a>;
+		status = "okay";
+
+		ports {
+			#address-cells = <1>;
+			#size-cells = <0>;
+
+			port@0 {
+				reg = <0>;
+				sii9022_in: endpoint {
+					remote-endpoint = <&ltdc_ep0_out>;
+				};
+			};
+		};
+	};
+};
 
 &i2c4 {
 	pinctrl-names = "default";
@@ -241,6 +293,20 @@
 	status = "okay";
 };
 
+&ltdc {
+	status = "okay";
+
+	port {
+		#address-cells = <1>;
+		#size-cells = <0>;
+
+		ltdc_ep0_out: endpoint@0 {
+			reg = <0>;
+			remote-endpoint = <&sii9022_in>;
+		};
+	};
+};
+
 &pwr {
 	pwr-supply = <&vdd>;
 };