dt-bindings: dma: Convert ADMA doc to json-schema

Move ADMA 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>

2 files changed, 99 insertions, 56 deletions

diff --git a/Documentation/devicetree/bindings/dma/nvidia,tegra210-adma.txt b/Documentation/devicetree/bindings/dma/nvidia,tegra210-adma.txt
deleted file mode 100644
index 245d3063715c..000000000000
--- a/Documentation/devicetree/bindings/dma/nvidia,tegra210-adma.txt
+++ /dev/null
@@ -1,56 +0,0 @@
-* NVIDIA Tegra Audio DMA (ADMA) controller
-
-The Tegra Audio DMA controller that is used for transferring data
-between system memory and the Audio Processing Engine (APE).
-
-Required properties:
-- compatible: Should contain one of the following:
-  - "nvidia,tegra210-adma": for Tegra210
-  - "nvidia,tegra186-adma": for Tegra186 and Tegra194
-- reg: Should contain DMA registers location and length. This should be
-  a single entry that includes all of the per-channel registers in one
-  contiguous bank.
-- interrupts: Should contain all of the per-channel DMA interrupts in
-  ascending order with respect to the DMA channel index.
-- clocks: Must contain one entry for the ADMA module clock
-  (TEGRA210_CLK_D_AUDIO).
-- clock-names: Must contain the name "d_audio" for the corresponding
-  'clocks' entry.
-- #dma-cells : Must be 1. The first cell denotes the receive/transmit
-  request number and should be between 1 and the maximum number of
-  requests supported. This value corresponds to the RX/TX_REQUEST_SELECT
-  fields in the ADMA_CHn_CTRL register.
-
-
-Example:
-
-adma: dma@702e2000 {
-	compatible = "nvidia,tegra210-adma";
-	reg = <0x0 0x702e2000 0x0 0x2000>;
-	interrupt-parent = <&tegra_agic>;
-	interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>,
-		     <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>,
-		     <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>,
-		     <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>,
-		     <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>,
-		     <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>,
-		     <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>,
-		     <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>,
-		     <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>,
-		     <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>,
-		     <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>,
-		     <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>,
-		     <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>,
-		     <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>,
-		     <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>,
-		     <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>,
-		     <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>,
-		     <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>,
-		     <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>,
-		     <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>,
-		     <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>,
-		     <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
-	clocks = <&tegra_car TEGRA210_CLK_D_AUDIO>;
-	clock-names = "d_audio";
-	#dma-cells = <1>;
-};
diff --git a/Documentation/devicetree/bindings/dma/nvidia,tegra210-adma.yaml b/Documentation/devicetree/bindings/dma/nvidia,tegra210-adma.yaml
new file mode 100644
index 000000000000..5c2e2f156e31
--- /dev/null
+++ b/Documentation/devicetree/bindings/dma/nvidia,tegra210-adma.yaml
@@ -0,0 +1,99 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/dma/nvidia,tegra210-adma.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NVIDIA Tegra Audio DMA (ADMA) controller
+
+description: |
+  The Tegra Audio DMA controller is used for transferring data
+  between system memory and the Audio Processing Engine (APE).
+
+maintainers:
+  - Jon Hunter <jonathanh@nvidia.com>
+
+allOf:
+  - $ref: "dma-controller.yaml#"
+
+properties:
+  compatible:
+    oneOf:
+      - enum:
+          - nvidia,tegra210-adma
+          - nvidia,tegra186-adma
+      - items:
+          - const: nvidia,tegra194-adma
+          - const: nvidia,tegra186-adma
+
+  reg:
+    maxItems: 1
+
+  interrupts:
+    description: |
+      Should contain all of the per-channel DMA interrupts in
+      ascending order with respect to the DMA channel index.
+    minItems: 1
+    maxItems: 32
+
+  clocks:
+    description: Must contain one entry for the ADMA module clock
+    maxItems: 1
+
+  clock-names:
+    const: d_audio
+
+  "#dma-cells":
+    description: |
+      The first cell denotes the receive/transmit request number and
+      should be between 1 and the maximum number of requests supported.
+      This value corresponds to the RX/TX_REQUEST_SELECT fields in the
+      ADMA_CHn_CTRL register.
+    const: 1
+
+required:
+  - compatible
+  - reg
+  - interrupts
+  - clocks
+  - clock-names
+
+additionalProperties: false
+
+examples:
+  - |
+    #include <dt-bindings/interrupt-controller/arm-gic.h>
+    #include<dt-bindings/clock/tegra210-car.h>
+
+    dma-controller@702e2000 {
+        compatible = "nvidia,tegra210-adma";
+        reg = <0x702e2000 0x2000>;
+        interrupt-parent = <&tegra_agic>;
+        interrupts = <GIC_SPI 24 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 25 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 26 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 27 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 28 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 29 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 30 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 31 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 32 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 33 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 34 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 35 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 36 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 37 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 38 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 39 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 40 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 41 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 42 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 43 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 44 IRQ_TYPE_LEVEL_HIGH>,
+                     <GIC_SPI 45 IRQ_TYPE_LEVEL_HIGH>;
+        clocks = <&tegra_car TEGRA210_CLK_D_AUDIO>;
+        clock-names = "d_audio";
+        #dma-cells = <1>;
+    };
+
+...