ASoC: dt-bindings: tegra: Few more Tegra210 AHUB modules

This patch adds YAML schema for DT bindings of few AHUB modules.
These devices will be registered as ASoC components and bindings
will be used on Tegra210 and later chips. The bindings for below
mentioned modules are added:

 * SFC (Sampling Frequency Converter)
 * MVC (Master Volume Control)
 * AMX (Audio Multiplexer)
 * ADX (Audio Demultiplexer)
 * Mixer

Signed-off-by: Sameer Pujar <spujar@nvidia.com>
Cc: Rob Herring <robh+dt@kernel.org>
Reviewed-by: Rob Herring <robh@kernel.org>
Link: https://lore.kernel.org/r/1631551342-25469-5-git-send-email-spujar@nvidia.com
Signed-off-by: Mark Brown <broonie@kernel.org>

1 files changed, 76 insertions, 0 deletions

diff --git a/Documentation/devicetree/bindings/sound/nvidia,tegra210-amx.yaml b/Documentation/devicetree/bindings/sound/nvidia,tegra210-amx.yaml
new file mode 100644
index 000000000000..bb2111afe5a8
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/nvidia,tegra210-amx.yaml
@@ -0,0 +1,76 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/nvidia,tegra210-amx.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Tegra210 AMX Device Tree Bindings
+
+description: |
+  The Audio Multiplexer (AMX) block can multiplex up to four input streams
+  each of which can have maximum 16 channels and generate an output stream
+  with maximum 16 channels. A byte RAM helps to form an output frame by
+  any combination of bytes from the input frames.
+
+maintainers:
+  - Jon Hunter <jonathanh@nvidia.com>
+  - Mohan Kumar <mkumard@nvidia.com>
+  - Sameer Pujar <spujar@nvidia.com>
+
+allOf:
+  - $ref: name-prefix.yaml#
+
+properties:
+  $nodename:
+    pattern: "^amx@[0-9a-f]*$"
+
+  compatible:
+    oneOf:
+      - const: nvidia,tegra210-amx
+      - items:
+          - const: nvidia,tegra186-amx
+          - const: nvidia,tegra210-amx
+      - const: nvidia,tegra194-amx
+
+  reg:
+    maxItems: 1
+
+  sound-name-prefix:
+    pattern: "^AMX[1-9]$"
+
+  ports:
+    $ref: /schemas/graph.yaml#/properties/ports
+    description: |
+      AMX has four inputs and one output. Accordingly ACIF (Audio Client
+      Interfaces) port nodes are defined to represent AMX inputs (port 0
+      to 3) and output (port 4). These are connected to corresponding
+      ports on AHUB (Audio Hub).
+
+    patternProperties:
+      '^port@[0-3]':
+        $ref: audio-graph-port.yaml#
+        unevaluatedProperties: false
+        description: AMX ACIF input ports
+
+    properties:
+      port@4:
+        $ref: audio-graph-port.yaml#
+        unevaluatedProperties: false
+        description: AMX ACIF output port
+
+required:
+  - compatible
+  - reg
+
+additionalProperties: false
+
+examples:
+  - |
+
+    amx@702d3000 {
+        compatible = "nvidia,tegra210-amx";
+        reg = <0x702d3000 0x100>;
+        sound-name-prefix = "AMX1";
+    };
+
+...