ARM: dts: aspeed-g5: Add SoC Display Controller node

Signed-off-by: Andrew Jeffery <andrew@aj.id.au>
Signed-off-by: Joel Stanley <joel@jms.id.au>
diff --git a/arch/arm/boot/dts/aspeed-g5.dtsi b/arch/arm/boot/dts/aspeed-g5.dtsi
index dd94d93..c7ff3ea 100644
--- a/arch/arm/boot/dts/aspeed-g5.dtsi
+++ b/arch/arm/boot/dts/aspeed-g5.dtsi
@@ -71,6 +71,12 @@
 				reg = <0x1e6e202c 0x4>;
 			};
 
+			gfx: display@1e6e6000 {
+				compatible = "aspeed,ast2500-gfx", "syscon";
+				reg = <0x1e6e6000 0x1000>;
+				reg-io-width = <4>;
+			};
+
 			sram@1e720000 {
 				compatible = "mmio-sram";
 				reg = <0x1e720000 0x9000>;	// 36K