dt-bindings: bus: Convert ACONNECT doc to json-schema

Move ACONNECT documentation to YAML format.

Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: Thierry Reding <treding@nvidia.com>

Documentation/devicetree/bindings/bus/nvidia,tegra210-aconnect.txt

@@ -1,44 +0,0 @@
-NVIDIA Tegra ACONNECT Bus
-
-The Tegra ACONNECT bus is an AXI switch which is used to connnect various
-components inside the Audio Processing Engine (APE). All CPU accesses to
-the APE subsystem go through the ACONNECT via an APB to AXI wrapper.
-
-Required properties:
-- compatible: Must be "nvidia,tegra210-aconnect".
-- clocks: Must contain the entries for the APE clock (TEGRA210_CLK_APE),
-  and APE interface clock (TEGRA210_CLK_APB2APE).
-- clock-names: Must contain the names "ape" and "apb2ape" for the corresponding
-  'clocks' entries.
-- power-domains: Must contain a phandle that points to the audio powergate
-  (namely 'aud') for Tegra210.
-- #address-cells: The number of cells used to represent physical base addresses
-  in the aconnect address space. Should be 1.
-- #size-cells: The number of cells used to represent the size of an address
-  range in the aconnect address space. Should be 1.
-- ranges: Mapping of the aconnect address space to the CPU address space.
-
-All devices accessed via the ACONNNECT are described by child-nodes.
-
-Example:
-
-	aconnect@702c0000 {
-		compatible = "nvidia,tegra210-aconnect";
-		clocks = <&tegra_car TEGRA210_CLK_APE>,
-			 <&tegra_car TEGRA210_CLK_APB2APE>;
-		clock-names = "ape", "apb2ape";
-		power-domains = <&pd_audio>;
-
-		#address-cells = <1>;
-		#size-cells = <1>;
-		ranges = <0x702c0000 0x0 0x702c0000 0x00040000>;
-
-
-		child1 {
-			...
-		};
-
-		child2 {
-			...
-		};
-	};

Documentation/devicetree/bindings/bus/nvidia,tegra210-aconnect.yaml

@@ -0,0 +1,82 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/bus/nvidia,tegra210-aconnect.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra ACONNECT Bus
+
+description: |
+  The Tegra ACONNECT bus is an AXI switch which is used to connnect various
+  components inside the Audio Processing Engine (APE). All CPU accesses to
+  the APE subsystem go through the ACONNECT via an APB to AXI wrapper. All
+  devices accessed via the ACONNNECT are described by child-nodes.
+
+maintainers:
+  - Jon Hunter <jonathanh@nvidia.com>
+
+properties:
+  compatible:
+    oneOf:
+      - const: nvidia,tegra210-aconnect
+      - items:
+          - enum:
+              - nvidia,tegra186-aconnect
+              - nvidia,tegra194-aconnect
+          - const: nvidia,tegra210-aconnect
+
+  clocks:
+    items:
+      - description: Must contain the entry for APE clock
+      - description: Must contain the entry for APE interface clock
+
+  clock-names:
+    items:
+      - const: ape
+      - const: apb2ape
+
+  power-domains:
+    maxItems: 1
+
+  "#address-cells":
+    const: 1
+
+  "#size-cells":
+    const: 1
+
+  ranges: true
+
+patternProperties:
+  "@[0-9a-f]+$":
+    type: object
+
+required:
+  - compatible
+  - clocks
+  - clock-names
+  - power-domains
+  - "#address-cells"
+  - "#size-cells"
+  - ranges
+
+additionalProperties: false
+
+examples:
+  - |
+    #include<dt-bindings/clock/tegra210-car.h>
+
+    aconnect@702c0000 {
+        compatible = "nvidia,tegra210-aconnect";
+        clocks = <&tegra_car TEGRA210_CLK_APE>,
+                 <&tegra_car TEGRA210_CLK_APB2APE>;
+        clock-names = "ape", "apb2ape";
+        power-domains = <&pd_audio>;
+
+        #address-cells = <1>;
+        #size-cells = <1>;
+        ranges = <0x702c0000 0x702c0000 0x00040000>;
+
+        // Child device nodes follow ...
+    };
+
+...