[PATCH v4 1/4] dt-bindings: dmaengine: Add doc for tegra gpcdma

[Akhil R]

Add DT binding document for Nvidia Tegra GPCDMA controller.

Signed-off-by: Rajesh Gumasta <rgumasta@xxxxxxxxxx>
Signed-off-by: Akhil R <akhilrajeev@xxxxxxxxxx>
---
 .../bindings/dma/nvidia,tegra186-gpc-dma.yaml      | 106 +++++++++++++++++++++
 1 file changed, 106 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml

diff --git a/Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml b/Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml
new file mode 100644
index 0000000..00c5582
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/nvidia,tegra186-gpc-dma.yaml
@@ -0,0 +1,106 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/nvidia,tegra-gpc-dma.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Nvidia Tegra GPC DMA Controller Device Tree Bindings
+
+description: |
+  Tegra GPC DMA is the Genernal Purpose Central (GPC) DMA controller used for faster data
+  transfers between memory to memory, memory to device and device to memory.
+
+maintainers:
+  - Jon Hunter <jonathanh@xxxxxxxxxx>
+  - Rajesh Gumasta <rgumasta@xxxxxxxxxx>
+
+allOf:
+  - $ref: "dma-controller.yaml#"
+
+properties:
+  "#dma-cells":
+    const: 1
+
+  compatible:
+    - enum:
+      - nvidia,tegra186-gpcdma
+      - nvidia,tegra194-gpcdma
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+	minItems: 1
+    maxItems: 32
+
+  resets:
+    maxItems: 1
+
+  reset-names:
+    const: gpcdma
+
+  iommus:
+    maxItems: 1
+
+  nvidia,stream-id:
+	description: |
+	 stream-id corresponding to GPC DMA clients.
+	 Defaults to TEGRA186_SID_GPCDMA_0 if not given
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - resets
+  - reset-names
+  - "#dma-cells"
+  - iommus
+
+optional:
+  - nvidia,stream-id
+
+examples:
+  - |
+	gpcdma: dma@2600000 {
+		compatible = "nvidia,tegra186-gpcdma";
+		reg = <0x0 0x2600000 0x0 0x210000>;
+		resets = <&bpmp TEGRA186_RESET_GPCDMA>;
+		reset-names = "gpcdma";
+		interrupts = <GIC_SPI 75 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 76 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 77 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 78 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 79 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 80 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 81 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 82 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 83 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 84 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 85 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 86 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 87 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 88 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 89 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 90 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 91 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 92 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 93 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 94 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 95 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 96 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 97 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 98 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 99 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 100 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 101 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 102 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 103 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 104 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 105 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 106 IRQ_TYPE_LEVEL_HIGH
+					GIC_SPI 107 IRQ_TYPE_LEVEL_HIGH>;
+		#dma-cells = <1>;
+		iommus = <&smmu TEGRA_SID_GPCDMA_0>;
+		dma-coherent;
+	};
+...
-- 
2.7.4