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diff --git a/Documentation/devicetree/bindings/display/mediatek/mediatek,wdma.yaml b/Documentation/devicetree/bindings/display/mediatek/mediatek,wdma.yaml
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+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/display/mediatek/mediatek,wdma.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Mediatek Write Direct Memory Access
+
+maintainers:
+  - Chun-Kuang Hu <chunkuang.hu@kernel.org>
+  - Philipp Zabel <p.zabel@pengutronix.de>
+
+description: |
+  Mediatek Write Direct Memory Access(WDMA) component used to write
+  the data into DMA.
+  WDMA device node must be siblings to the central MMSYS_CONFIG node.
+  For a description of the MMSYS_CONFIG binding, see
+  Documentation/devicetree/bindings/arm/mediatek/mediatek,mmsys.yaml
+  for details.
+
+properties:
+  compatible:
+    oneOf:
+      - items:
+          - const: mediatek,mt8173-disp-wdma
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    maxItems: 1
+
+  power-domains:
+    description: A phandle and PM domain specifier as defined by bindings of
+      the power controller specified by phandle. See
+      Documentation/devicetree/bindings/power/power-domain.yaml for details.
+
+  clocks:
+    items:
+      - description: WDMA Clock
+
+  iommus:
+    description:
+      This property should point to the respective IOMMU block with master port as argument,
+      see Documentation/devicetree/bindings/iommu/mediatek,iommu.yaml for details.
+
+  mediatek,gce-client-reg:
+    description: The register of client driver can be configured by gce with
+      4 arguments defined in this property, such as phandle of gce, subsys id,
+      register offset and size. Each GCE subsys id is mapping to a client
+      defined in the header include/dt-bindings/gce/<chip>-gce.h.
+    $ref: /schemas/types.yaml#/definitions/phandle-array
+    maxItems: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - power-domains
+  - clocks
+  - iommus
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include <dt-bindings/clock/mt8173-clk.h>
+    #include <dt-bindings/power/mt8173-power.h>
+    #include <dt-bindings/gce/mt8173-gce.h>
+    #include <dt-bindings/memory/mt8173-larb-port.h>
+
+    soc {
+        #address-cells = <2>;
+        #size-cells = <2>;
+
+        wdma0: wdma@14011000 {
+            compatible = "mediatek,mt8173-disp-wdma";
+            reg = <0 0x14011000 0 0x1000>;
+            interrupts = <GIC_SPI 185 IRQ_TYPE_LEVEL_LOW>;
+            power-domains = <&scpsys MT8173_POWER_DOMAIN_MM>;
+            clocks = <&mmsys CLK_MM_DISP_WDMA0>;
+            iommus = <&iommu M4U_PORT_DISP_WDMA0>;
+            mediatek,gce-client-reg = <&gce SUBSYS_1401XXXX 0x1000 0x1000>;
+        };
+    };