Squashed 'dts/upstream/' content from commit aaba2d45dc2a
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diff --git a/Bindings/dma/allwinner,sun50i-a64-dma.yaml b/Bindings/dma/allwinner,sun50i-a64-dma.yaml
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+# SPDX-License-Identifier: GPL-2.0
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/allwinner,sun50i-a64-dma.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Allwinner A64 DMA Controller
+
+maintainers:
+ - Chen-Yu Tsai <wens@csie.org>
+ - Maxime Ripard <mripard@kernel.org>
+
+allOf:
+ - $ref: dma-controller.yaml#
+
+properties:
+ "#dma-cells":
+ const: 1
+ description: The cell is the request line number.
+
+ compatible:
+ oneOf:
+ - enum:
+ - allwinner,sun20i-d1-dma
+ - allwinner,sun50i-a64-dma
+ - allwinner,sun50i-a100-dma
+ - allwinner,sun50i-h6-dma
+ - items:
+ - const: allwinner,sun8i-r40-dma
+ - const: allwinner,sun50i-a64-dma
+
+ reg:
+ maxItems: 1
+
+ interrupts:
+ maxItems: 1
+
+ clocks:
+ minItems: 1
+ maxItems: 2
+
+ clock-names:
+ items:
+ - const: bus
+ - const: mbus
+
+ resets:
+ maxItems: 1
+
+required:
+ - "#dma-cells"
+ - compatible
+ - reg
+ - interrupts
+ - clocks
+ - resets
+ - dma-channels
+
+if:
+ properties:
+ compatible:
+ enum:
+ - allwinner,sun20i-d1-dma
+ - allwinner,sun50i-a100-dma
+ - allwinner,sun50i-h6-dma
+
+then:
+ properties:
+ clocks:
+ minItems: 2
+
+ required:
+ - clock-names
+
+else:
+ properties:
+ clocks:
+ maxItems: 1
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ dma: dma-controller@1c02000 {
+ compatible = "allwinner,sun50i-a64-dma";
+ reg = <0x01c02000 0x1000>;
+ interrupts = <0 50 4>;
+ clocks = <&ccu 30>;
+ dma-channels = <8>;
+ dma-requests = <27>;
+ resets = <&ccu 7>;
+ #dma-cells = <1>;
+ };
+
+...