linux-kernel - [PATCH v2 2/2] ASoC: dt-bindings: imx-akcodec: Add binding doc for akcodec machine driver

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Date:   Mon, 10 May 2021 15:07:21 +0800
From:   Shengjiu Wang <shengjiu.wang@....com>
To:     lgirdwood@...il.com, broonie@...nel.org, perex@...ex.cz,
        tiwai@...e.com, timur@...nel.org, nicoleotsuka@...il.com,
        Xiubo.Lee@...il.com, festevam@...il.com, shawnguo@...nel.org,
        s.hauer@...gutronix.de, kernel@...gutronix.de, linux-imx@....com,
        linux-kernel@...r.kernel.org, alsa-devel@...a-project.org,
        linuxppc-dev@...ts.ozlabs.org,
        linux-arm-kernel@...ts.infradead.org, robh+dt@...nel.org,
        devicetree@...r.kernel.org
Subject: [PATCH v2 2/2] ASoC: dt-bindings: imx-akcodec: Add binding doc for akcodec machine driver

Imx-akcodec is a new added machine driver for supporting
ak4458/ak5558/ak5552/ak4497 codec on i.MX platforms.

Signed-off-by: Shengjiu Wang <shengjiu.wang@....com>
---
changes in v2:
- update doc accoring to Rob's comment, use the common porperties.

 .../bindings/sound/imx-audio-akcodec.yaml     | 107 ++++++++++++++++++
 1 file changed, 107 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/imx-audio-akcodec.yaml

diff --git a/Documentation/devicetree/bindings/sound/imx-audio-akcodec.yaml b/Documentation/devicetree/bindings/sound/imx-audio-akcodec.yaml
new file mode 100644
index 000000000000..0812c4779b59
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/imx-audio-akcodec.yaml
@@ -0,0 +1,107 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/imx-audio-akcodec.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: NXP i.MX audio complex with AK4458/AK5558/AK5552/AK4497 codec
+
+maintainers:
+  - Shengjiu Wang <shengjiu.wang@....com>
+
+properties:
+  compatible:
+    enum:
+      - fsl,imx8mq-audio-akcodec
+      - fsl,imx-audio-akcodec
+
+  model:
+    $ref: /schemas/types.yaml#/definitions/string
+    description: User specified audio sound card name
+
+  audio-routing:
+    $ref: /schemas/types.yaml#/definitions/non-unique-string-array
+    description:
+      A list of the connections between audio components. Each entry is a
+      pair of strings, the first being the connection's sink, the second
+      being the connection's source. Valid names could be power supplies,
+      MicBias of codec and the jacks on the board.
+
+patternProperties:
+  ".*-dai-link$":
+    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
+
+      cpu:
+        description: Holds subnode which indicates cpu dai.
+        type: object
+        properties:
+          sound-dai: true
+
+      codec:
+        description: Holds subnode which indicates codec dai.
+        type: object
+        properties:
+          sound-dai: true
+
+    required:
+      - link-name
+      - cpu
+
+    additionalProperties: false
+
+required:
+  - compatible
+  - model
+
+additionalProperties: false
+
+examples:
+  - |
+    sound-ak4458 {
+        compatible = "fsl,imx-audio-akcodec";
+        model = "ak4458-audio";
+        pri-dai-link {
+            link-name = "akcodec";
+            format = "i2s";
+            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";
+            cpu {
+                sound-dai = <&sai1>;
+            };
+            codec {
+                sound-dai = <&ak4458_1>, <&ak4458_2>;
+            };
+        };
+    };
-- 
2.27.0