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diff --git a/Documentation/devicetree/bindings/gpu/aspeed,ast2400-gfx.yaml b/Documentation/devicetree/bindings/gpu/aspeed,ast2400-gfx.yaml
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/gpu/aspeed,ast2400-gfx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: ASPEED GFX Display Controller
+
+maintainers:
+  - Joel Stanley <joel@jms.id.au>
+
+properties:
+  compatible:
+    items:
+      - enum:
+          - aspeed,ast2400-gfx
+          - aspeed,ast2500-gfx
+          - aspeed,ast2600-gfx
+      - const: syscon
+
+  reg:
+    maxItems: 1
+
+  clocks:
+    maxItems: 1
+
+  resets:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  memory-region:
+    maxItems: 1
+    description:
+      a reserved-memory region to use for the framebuffer.
+
+  syscon:
+    $ref: /schemas/types.yaml#/definitions/phandle
+    description: Phandle to SCU
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - resets
+  - memory-region
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/clock/aspeed-clock.h>
+
+    display@1e6e6000 {
+        compatible = "aspeed,ast2500-gfx", "syscon";
+        reg = <0x1e6e6000 0x1000>;
+        clocks = <&syscon ASPEED_CLK_GATE_D1CLK>;
+        resets = <&syscon ASPEED_RESET_CRT1>;
+        interrupts = <0x19>;
+        memory-region = <&gfx_memory>;
+    };