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>
---
 .../devicetree/bindings/sound/imx-audio-card.yaml  | 117 +++++++++++++++++++++
 1 file changed, 117 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/imx-audio-card.yaml

(limited to 'Documentation/devicetree/bindings/sound/imx-audio-card.yaml')

diff --git a/Documentation/devicetree/bindings/sound/imx-audio-card.yaml b/Documentation/devicetree/bindings/sound/imx-audio-card.yaml
new file mode 100644
index 0000000000..f7ad5ea249
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/imx-audio-card.yaml
@@ -0,0 +1,117 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/imx-audio-card.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP i.MX audio sound card.
+
+maintainers:
+  - Shengjiu Wang <shengjiu.wang@nxp.com>
+
+allOf:
+  - $ref: sound-card-common.yaml#
+
+properties:
+  compatible:
+    enum:
+      - fsl,imx-audio-card
+
+patternProperties:
+  ".*-dai-link$":
+    description:
+      Each subnode represents a dai link. Subnodes of each dai links would be
+      cpu/codec dais.
+
+    type: object
+
+    properties:
+      link-name:
+        description: Indicates dai-link name and PCM stream name.
+        $ref: /schemas/types.yaml#/definitions/string
+        maxItems: 1
+
+      format:
+        description: audio format.
+        items:
+          enum:
+            - i2s
+            - dsp_b
+
+      dai-tdm-slot-num:
+        description: see tdm-slot.txt.
+        $ref: /schemas/types.yaml#/definitions/uint32
+
+      dai-tdm-slot-width:
+        description: see tdm-slot.txt.
+        $ref: /schemas/types.yaml#/definitions/uint32
+
+      cpu:
+        description: Holds subnode which indicates cpu dai.
+        type: object
+        additionalProperties: false
+        properties:
+          sound-dai:
+            maxItems: 1
+
+      codec:
+        description: Holds subnode which indicates codec dai.
+        type: object
+        additionalProperties: false
+        properties:
+          sound-dai:
+            minItems: 1
+            maxItems: 2
+
+      fsl,mclk-equal-bclk:
+        description: Indicates mclk can be equal to bclk, especially for sai interface
+        $ref: /schemas/types.yaml#/definitions/flag
+
+    required:
+      - link-name
+      - cpu
+
+    additionalProperties: false
+
+required:
+  - compatible
+
+unevaluatedProperties: false
+
+examples:
+  - |
+    sound-ak4458 {
+        compatible = "fsl,imx-audio-card";
+        model = "ak4458-audio";
+        pri-dai-link {
+            link-name = "akcodec";
+            format = "i2s";
+            fsl,mclk-equal-bclk;
+            cpu {
+                 sound-dai = <&sai1>;
+            };
+            codec {
+                 sound-dai = <&ak4458_1>, <&ak4458_2>;
+            };
+        };
+        fe-dai-link {
+            link-name = "HiFi-ASRC-FE";
+            format = "i2s";
+            cpu {
+                sound-dai = <&easrc>;
+            };
+        };
+        be-dai-link {
+            link-name = "HiFi-ASRC-BE";
+            format = "dsp_b";
+            dai-tdm-slot-num = <8>;
+            dai-tdm-slot-width = <32>;
+            fsl,mclk-equal-bclk;
+            cpu {
+                sound-dai = <&sai1>;
+            };
+            codec {
+                sound-dai = <&ak4458_1>, <&ak4458_2>;
+            };
+        };
+    };
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