[PATCH v4 1/3] ASoC: dt-bindings: support imx95's CM7 core

[Laurentiu Mihalcea <laurentiumihalcea111@xxxxxxxxx>]

From: Laurentiu Mihalcea <laurentiu.mihalcea@xxxxxxx>

Add binding for imx95's CM7 core, used for audio processing.
Additionally, introduce a common binding for NXP audio processors with
Sound Open Firmware (SOF) support.

Signed-off-by: Laurentiu Mihalcea <laurentiu.mihalcea@xxxxxxx>
---
 .../bindings/sound/fsl,imx95-cm7-sof.yaml     | 64 +++++++++++++++++++
 .../bindings/sound/fsl,sof-cpu.yaml           | 27 ++++++++
 2 files changed, 91 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/fsl,imx95-cm7-sof.yaml
 create mode 100644 Documentation/devicetree/bindings/sound/fsl,sof-cpu.yaml

diff --git a/Documentation/devicetree/bindings/sound/fsl,imx95-cm7-sof.yaml b/Documentation/devicetree/bindings/sound/fsl,imx95-cm7-sof.yaml
new file mode 100644
index 000000000000..f00ae3219e15
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/fsl,imx95-cm7-sof.yaml
@@ -0,0 +1,64 @@
+# SPDX-License-Identifier: (GPL-2.0 OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/fsl,imx95-cm7-sof.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP imx95 CM7 core
+
+maintainers:
+  - Daniel Baluta <daniel.baluta@xxxxxxx>
+
+description: NXP imx95 CM7 core used for audio processing
+
+properties:
+  compatible:
+    const: fsl,imx95-cm7-sof
+
+  reg:
+    maxItems: 1
+
+  reg-names:
+    const: sram
+
+  memory-region:
+    maxItems: 1
+
+  memory-region-names:
+    const: dma
+
+  port:
+    description: SAI3 port
+    $ref: audio-graph-port.yaml#
+    unevaluatedProperties: false
+
+required:
+  - compatible
+  - reg
+  - reg-names
+  - memory-region
+  - memory-region-names
+  - port
+
+allOf:
+  - $ref: fsl,sof-cpu.yaml#
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    cm7-cpu@80000000 {
+        compatible = "fsl,imx95-cm7-sof";
+        reg = <0x80000000 0x6100000>;
+        reg-names = "sram";
+        mboxes = <&mu7 2 0>, <&mu7 2 1>, <&mu7 3 0>, <&mu7 3 1>;
+        mbox-names = "txdb0", "txdb1", "rxdb0", "rxdb1";
+        memory-region = <&adma_res>;
+        memory-region-names = "dma";
+        port {
+            /* SAI3-WM8962 link */
+            endpoint {
+                remote-endpoint = <&wm8962_ep>;
+            };
+        };
+    };
diff --git a/Documentation/devicetree/bindings/sound/fsl,sof-cpu.yaml b/Documentation/devicetree/bindings/sound/fsl,sof-cpu.yaml
new file mode 100644
index 000000000000..31863932dbc3
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/fsl,sof-cpu.yaml
@@ -0,0 +1,27 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/fsl,sof-cpu.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP audio processor common properties
+
+maintainers:
+  - Daniel Baluta <daniel.baluta@xxxxxxx>
+
+properties:
+  mboxes:
+    maxItems: 4
+
+  mbox-names:
+    items:
+      - const: txdb0
+      - const: txdb1
+      - const: rxdb0
+      - const: rxdb1
+
+required:
+  - mboxes
+  - mbox-names
+
+additionalProperties: true
-- 
2.34.1