From ace9429bb58fd418f0c81d4c2835699bddf6bde6 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Thu, 11 Apr 2024 10:27:49 +0200
Subject: Adding upstream version 6.6.15.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 .../bindings/sound/nvidia,tegra210-amx.yaml        | 79 ++++++++++++++++++++++
 1 file changed, 79 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/nvidia,tegra210-amx.yaml

(limited to 'Documentation/devicetree/bindings/sound/nvidia,tegra210-amx.yaml')

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 000000000..021b72546
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/nvidia,tegra210-amx.yaml
@@ -0,0 +1,79 @@
+# 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
+
+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: dai-common.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
+      - items:
+          - const: nvidia,tegra234-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";
+    };
+
+...
-- 
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