linux-kernel - [PATCH v3 3/3] ASoC: dt-bindings: Add support for Loongson audio card

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20230614122659.3402788-1-mengyingkun@loongson.cn>
Date:   Wed, 14 Jun 2023 20:26:59 +0800
From:   YingKun Meng <mengyingkun@...ngson.cn>
To:     krzysztof.kozlowski+dt@...aro.org, robh+dt@...nel.org,
        conor+dt@...nel.org, krzysztof.kozlowski@...aro.org
Cc:     devicetree@...r.kernel.org, broonie@...nel.org,
        lgirdwood@...il.com, linux-kernel@...r.kernel.org,
        alsa-devel@...a-project.org, loongarch@...ts.linux.dev,
        loongson-kernel@...ts.loongnix.cn, mengyingkun@...ngson.cn
Subject: [PATCH v3 3/3] ASoC: dt-bindings: Add support for Loongson audio card

From: Yingkun Meng <mengyingkun@...ngson.cn>

The audio card uses loongson I2S controller present in
7axxx/2kxxx chips to transfer audio data.

On loongson platform, the chip has only one I2S controller.

Signed-off-by: Yingkun Meng <mengyingkun@...ngson.cn>
---
Changes v2 -> v3
  No change.

Changes v1 -> v2
  Add chip model restriction for title and descrition.
  Add 'required' option for sound-dai property.

 .../sound/loongson,ls-audio-card.yaml         | 70 +++++++++++++++++++
 1 file changed, 70 insertions(+)
 create mode 100644 Documentation/devicetree/bindings/sound/loongson,ls-audio-card.yaml

diff --git a/Documentation/devicetree/bindings/sound/loongson,ls-audio-card.yaml b/Documentation/devicetree/bindings/sound/loongson,ls-audio-card.yaml
new file mode 100644
index 000000000000..61e8babed402
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/loongson,ls-audio-card.yaml
@@ -0,0 +1,70 @@
+# SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+%YAML 1.2
+---
+$id: http://devicetree.org/schemas/sound/loongson,ls-audio-card.yaml#
+$schema: http://devicetree.org/meta-schemas/core.yaml#
+
+title: Loongson 7axxx/2kxxx ASoC audio sound card driver
+
+maintainers:
+  - Yingkun Meng <mengyingkun@...ngson.cn>
+
+description:
+  The binding describes the sound card present in loongson
+  7axxx/2kxxx platform. The sound card is an ASoC component
+  which uses Loongson I2S controller to transfer the audio data.
+
+properties:
+  compatible:
+    const: loongson,ls-audio-card
+
+  model:
+    $ref: /schemas/types.yaml#/definitions/string
+    description: User specified audio sound card name
+
+  mclk-fs:
+    $ref: simple-card.yaml#/definitions/mclk-fs
+
+  cpu:
+    description: Holds subnode which indicates cpu dai.
+    type: object
+    additionalProperties: false
+    properties:
+      sound-dai:
+        maxItems: 1
+    required:
+      - sound-dai
+
+  codec:
+    description: Holds subnode which indicates codec dai.
+    type: object
+    additionalProperties: false
+    properties:
+      sound-dai:
+        maxItems: 1
+    required:
+      - sound-dai
+
+required:
+  - compatible
+  - model
+  - mclk-fs
+  - cpu
+  - codec
+
+additionalProperties: false
+
+examples:
+  - |
+    sound {
+        compatible = "loongson,ls-audio-card";
+        model = "loongson-audio";
+        mclk-fs = <512>;
+
+        cpu {
+            sound-dai = <&i2s>;
+        };
+        codec {
+             sound-dai = <&es8323>;
+        };
+    };
-- 
2.33.0