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Message-Id: <20250211225808.3050-2-laurentiumihalcea111@gmail.com>
Date: Tue, 11 Feb 2025 17:58:06 -0500
From: Laurentiu Mihalcea <laurentiumihalcea111@...il.com>
To: Mark Brown <broonie@...nel.org>,
Rob Herring <robh@...nel.org>,
Krzysztof Kozlowski <krzk+dt@...nel.org>,
Shawn Guo <shawnguo@...nel.org>,
Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>,
Sascha Hauer <s.hauer@...gutronix.de>
Cc: Pengutronix Kernel Team <kernel@...gutronix.de>,
linux-sound@...r.kernel.org,
devicetree@...r.kernel.org,
imx@...ts.linux.dev,
linux-kernel@...r.kernel.org,
linux-arm-kernel@...ts.infradead.org
Subject: [PATCH v4 1/3] ASoC: dt-bindings: support imx95's CM7 core
From: Laurentiu Mihalcea <laurentiu.mihalcea@....com>
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@....com>
---
.../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@....com>
+
+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:
+ - $ref: fsl,sof-cpu.yaml#
+
+unevaluatedProperties: false
+
+examples:
+ - |
+ cm7-cpu@...00000 {
+ compatible = "fsl,imx95-cm7-sof";
+ reg = <0x80000000 0x6100000>;
+ reg-names = "sram";
+ mboxes = <&mu7 2 0>, <&mu7 2 1>, <&mu7 3 0>, <&mu7 3 1>;
+ mbox-names = "txdb0", "txdb1", "rxdb0", "rxdb1";
+ memory-region = <&adma_res>;
+ memory-region-names = "dma";
+ port {
+ /* SAI3-WM8962 link */
+ endpoint {
+ remote-endpoint = <&wm8962_ep>;
+ };
+ };
+ };
diff --git a/Documentation/devicetree/bindings/sound/fsl,sof-cpu.yaml b/Documentation/devicetree/bindings/sound/fsl,sof-cpu.yaml
new file mode 100644
index 000000000000..31863932dbc3
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/fsl,sof-cpu.yaml
@@ -0,0 +1,27 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$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@....com>
+
+properties:
+ mboxes:
+ maxItems: 4
+
+ mbox-names:
+ items:
+ - const: txdb0
+ - const: txdb1
+ - const: rxdb0
+ - const: rxdb1
+
+required:
+ - mboxes
+ - mbox-names
+
+additionalProperties: true
--
2.34.1
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