dt-bindings: npu: Add bindings for Phytium NPU on pe230x

This patch document the DT bindings for the Phytium NPU controller.

Signed-off-by: yuanxia <[email protected]>
Signed-off-by: Cheng Quan <[email protected]>
Signed-off-by: Wang Yinfeng <[email protected]>

Documentation/devicetree/bindings/staging/phytium-npu.yaml

@@ -0,0 +1,37 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/staging/phytium-npu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+title: Phytium NPU controller
+maintainers:
+  - Cheng Quan <[email protected]>
+properties:
+  compatible:
+    const: phytium,npu
+
+  reg:
+    items: 2
+      - description: NPU registers and PM registers
+
+  interrupts:
+    maxItems: 1
+
+  dma-mask:
+    maxItems: 1
+      - description: NPU dma capability
+
+required:
+  - compatible
+  - reg
+  - interrupts
+
+examples:
+  - |
+    npu@26d00000 {
+        compatible = "phytium,npu";
+		reg = <0x0 0x26d00000 0x0 0x80000
+               0x0 0x26fcc060 0x0 0x20>;
+        interrupts = <0 74 4>;
+        dma-mask=<0xff 0xffffffff>;
+    };