ASoC: dt-bindings: tegra: Add graph bindings

Add device tree binding properties of generic graph to ASoC component
devices. This allows to define audio ports out of these components or
DAIs and audio graph based sound card can be realised with this.

Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Reviewed-by: Jon Hunter <jonathanh@nvidia.com>
Link: https://lore.kernel.org/r/1611048496-24650-2-git-send-email-spujar@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>

Documentation/devicetree/bindings/sound/nvidia,tegra186-dspk.yaml

@@ -17,6 +17,9 @@ maintainers:
   - Jon Hunter <jonathanh@nvidia.com>
   - Sameer Pujar <spujar@nvidia.com>
 
+allOf:
+  - $ref: audio-graph-port.yaml#
+
 properties:
   $nodename:
     pattern: "^dspk@[0-9a-f]*$"
@@ -55,6 +58,19 @@ properties:
       The name can be "DSPK1" or "DSPKx", where x depends on the maximum
       available instances on a Tegra SoC.
 
+  ports:
+    type: object
+    properties:
+      port@0:
+        description: |
+          DSPK ACIF (Audio Client Interface) port connected to the
+          corresponding AHUB (Audio Hub) ACIF port.
+
+      port@1:
+        description: |
+          DSPK DAP (Digital Audio Port) interface which can be connected
+          to external audio codec for playback.
+
 required:
   - compatible
   - reg
@@ -64,7 +80,7 @@ required:
   - assigned-clock-parents
   - sound-name-prefix
 
-additionalProperties: false
+unevaluatedProperties: false
 
 examples:
   - |

Documentation/devicetree/bindings/sound/nvidia,tegra210-admaif.yaml

@@ -17,6 +17,9 @@ maintainers:
   - Jon Hunter <jonathanh@nvidia.com>
   - Sameer Pujar <spujar@nvidia.com>
 
+allOf:
+  - $ref: audio-graph-port.yaml#
+
 properties:
   $nodename:
     pattern: "^admaif@[0-9a-f]*$"
@@ -37,6 +40,14 @@ properties:
 
   dma-names: true
 
+  ports:
+    description: |
+      Contains list of ACIF (Audio CIF) port nodes for ADMAIF channels.
+      The number of port nodes depends on the number of ADMAIF channels
+      that SoC may have. These are interfaced with respective ACIF ports
+      in AHUB (Audio Hub). Each port is capable of data transfers in
+      both directions.
+
 if:
   properties:
     compatible:
@@ -81,7 +92,7 @@ required:
   - dmas
   - dma-names
 
-additionalProperties: false
+unevaluatedProperties: false
 
 examples:
   - |

Documentation/devicetree/bindings/sound/nvidia,tegra210-ahub.yaml

@@ -17,6 +17,9 @@ maintainers:
   - Jon Hunter <jonathanh@nvidia.com>
   - Sameer Pujar <spujar@nvidia.com>
 
+allOf:
+  - $ref: audio-graph-port.yaml#
+
 properties:
   $nodename:
     pattern: "^ahub@[0-9a-f]*$"
@@ -56,6 +59,13 @@ properties:
 
   ranges: true
 
+  ports:
+    description: |
+      Contains list of ACIF (Audio CIF) port nodes for AHUB (Audio Hub).
+      These are connected to ACIF interfaces of AHUB clients. Thus the
+      number of port nodes depend on the number of clients that AHUB may
+      have depending on the SoC revision.
+
 required:
   - compatible
   - reg
@@ -67,8 +77,7 @@ required:
   - "#size-cells"
   - ranges
 
-additionalProperties:
-  type: object
+unevaluatedProperties: false
 
 examples:
   - |

Documentation/devicetree/bindings/sound/nvidia,tegra210-dmic.yaml

@@ -16,6 +16,9 @@ maintainers:
   - Jon Hunter <jonathanh@nvidia.com>
   - Sameer Pujar <spujar@nvidia.com>
 
+allOf:
+  - $ref: audio-graph-port.yaml#
+
 properties:
   $nodename:
     pattern: "^dmic@[0-9a-f]*$"
@@ -56,6 +59,19 @@ properties:
       The name can be "DMIC1" or "DMIC2" ... "DMICx", where x depends
       on the maximum available instances on a Tegra SoC.
 
+  ports:
+    type: object
+    properties:
+      port@0:
+        description: |
+          DMIC ACIF (Audio Client Interface) port connected to the
+          corresponding AHUB (Audio Hub) ACIF port.
+
+      port@1:
+        description: |
+          DMIC DAP (Digital Audio Port) interface which can be connected
+          to external audio codec for capture.
+
 required:
   - compatible
   - reg
@@ -64,7 +80,7 @@ required:
   - assigned-clocks
   - assigned-clock-parents
 
-additionalProperties: false
+unevaluatedProperties: false
 
 examples:
   - |

Documentation/devicetree/bindings/sound/nvidia,tegra210-i2s.yaml

@@ -16,6 +16,9 @@ maintainers:
   - Jon Hunter <jonathanh@nvidia.com>
   - Sameer Pujar <spujar@nvidia.com>
 
+allOf:
+  - $ref: audio-graph-port.yaml#
+
 properties:
   $nodename:
     pattern: "^i2s@[0-9a-f]*$"
@@ -74,6 +77,19 @@ properties:
       The name can be "I2S1" or "I2S2" ... "I2Sx", where x depends
       on the maximum available instances on a Tegra SoC.
 
+  ports:
+    type: object
+    properties:
+      port@0:
+        description: |
+          I2S ACIF (Audio Client Interface) port connected to the
+          corresponding AHUB (Audio Hub) ACIF port.
+
+      port@1:
+        description: |
+          I2S DAP (Digital Audio Port) interface which can be connected
+          to external audio codec for playback or capture.
+
 required:
   - compatible
   - reg
@@ -82,7 +98,7 @@ required:
   - assigned-clocks
   - assigned-clock-parents
 
-additionalProperties: false
+unevaluatedProperties: false
 
 examples:
   - |