[19/22] ASoC: dt-bindings: mt8192: Document audio-routing and dai-link subnode

Message ID 20240227120939.290143-20-angelogioacchino.delregno@collabora.com
State New
Headers
Series ASoC: Cleanup MediaTek soundcard machine drivers |

Commit Message

AngeloGioacchino Del Regno Feb. 27, 2024, 12:09 p.m. UTC
  Document the dai-link subnodes and the audio-routing property, allowing
to describe machine specific audio hardware and links in device tree.

While at it, also deprecate the old properties which were previously
used with the driver's partially hardcoded configuration.

Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
---
 .../sound/mt8192-mt6359-rt1015-rt5682.yaml    | 129 ++++++++++++++++--
 1 file changed, 121 insertions(+), 8 deletions(-)
  

Comments

Rob Herring March 4, 2024, 2:23 p.m. UTC | #1
On Tue, Feb 27, 2024 at 01:09:36PM +0100, AngeloGioacchino Del Regno wrote:
> Document the dai-link subnodes and the audio-routing property, allowing
> to describe machine specific audio hardware and links in device tree.
> 
> While at it, also deprecate the old properties which were previously
> used with the driver's partially hardcoded configuration.
> 
> Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
> ---
>  .../sound/mt8192-mt6359-rt1015-rt5682.yaml    | 129 ++++++++++++++++--
>  1 file changed, 121 insertions(+), 8 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/sound/mt8192-mt6359-rt1015-rt5682.yaml b/Documentation/devicetree/bindings/sound/mt8192-mt6359-rt1015-rt5682.yaml
> index 7e50f5d65c8f..78e221003750 100644
> --- a/Documentation/devicetree/bindings/sound/mt8192-mt6359-rt1015-rt5682.yaml
> +++ b/Documentation/devicetree/bindings/sound/mt8192-mt6359-rt1015-rt5682.yaml
> @@ -20,6 +20,15 @@ properties:
>        - mediatek,mt8192_mt6359_rt1015p_rt5682
>        - mediatek,mt8192_mt6359_rt1015p_rt5682s
>  
> +  audio-routing:
> +    $ref: /schemas/types.yaml#/definitions/non-unique-string-array

Already defined in sound-card-common.yaml. Add a $ref.

> +    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 the input or output widgets of audio components,
> +      power supplies, MicBias of codec and the software switch.

Generally the names are defined here.

> +
>    mediatek,platform:
>      $ref: /schemas/types.yaml#/definitions/phandle
>      description: The phandle of MT8192 ASoC platform.
> @@ -27,10 +36,12 @@ properties:
>    mediatek,hdmi-codec:
>      $ref: /schemas/types.yaml#/definitions/phandle
>      description: The phandle of HDMI codec.
> +    deprecated: true
>  
>    headset-codec:
>      type: object
>      additionalProperties: false
> +    deprecated: true
>  
>      properties:
>        sound-dai:
> @@ -41,6 +52,7 @@ properties:
>    speaker-codecs:
>      type: object
>      additionalProperties: false
> +    deprecated: true
>  
>      properties:
>        sound-dai:
> @@ -51,13 +63,83 @@ properties:
>      required:
>        - sound-dai
>  
> +patternProperties:
> +  ".*-dai-link$":
> +    type: object
> +    description:
> +      Container for dai-link level properties and CODEC sub-nodes.
> +
> +    properties:
> +      link-name:
> +        description: Indicates dai-link name and PCM stream name
> +        items:
> +          enum:
> +            - I2S0
> +            - I2S1
> +            - I2S2
> +            - I2S3
> +            - I2S4
> +            - I2S5
> +            - I2S6
> +            - I2S7
> +            - I2S8
> +            - I2S9
> +            - TDM
> +
> +      codec:
> +        description: Holds subnode which indicates codec dai.
> +        type: object
> +        additionalProperties: false
> +        properties:
> +          sound-dai:
> +            minItems: 1
> +            maxItems: 2
> +        required:
> +          - sound-dai
> +
> +      dai-format:
> +        description: audio format
> +        items:
> +          enum:
> +            - i2s
> +            - right_j
> +            - left_j
> +            - dsp_a
> +            - dsp_b
> +
> +      mediatek,clk-provider:
> +        $ref: /schemas/types.yaml#/definitions/string
> +        description: Indicates dai-link clock master.
> +        items:
> +          enum:
> +            - cpu
> +            - codec
> +
> +    additionalProperties: false

Move this before properties.

> +
> +    required:
> +      - link-name
> +
>  additionalProperties: false
>  
>  required:
>    - compatible
>    - mediatek,platform
> -  - headset-codec
> -  - speaker-codecs
> +
> +allOf:
> +  # Disallow dai-link-xxx nodes if the legacy properties are specified

xxx-dai-link?

> +  - if:
> +      patternProperties:
> +        ".*-dai-link$": false
> +    then:
> +      required:
> +        - headset-codec
> +        - speaker-codecs
> +    else:
> +      properties:
> +        headset-codec: false
> +        speaker-codecs: false
> +        mediatek,hdmi-codec: false

Allowing both would preserve compatibility. That's not needed? If so, 
say why in the commit msg.

>  
>  examples:
>    - |
> @@ -65,19 +147,50 @@ examples:
>      sound: mt8192-sound {
>          compatible = "mediatek,mt8192_mt6359_rt1015_rt5682";
>          mediatek,platform = <&afe>;
> -        mediatek,hdmi-codec = <&anx_bridge_dp>;
>          pinctrl-names = "aud_clk_mosi_off",
>                          "aud_clk_mosi_on";
>          pinctrl-0 = <&aud_clk_mosi_off>;
>          pinctrl-1 = <&aud_clk_mosi_on>;
>  
> -        headset-codec {
> -            sound-dai = <&rt5682>;
> +        audio-routing =
> +                "Headphone Jack", "HPOL",
> +                "Headphone Jack", "HPOR",
> +                "IN1P", "Headset Mic",
> +                "Speakers", "Speaker";
> +
> +        spk-playback-dai-link {
> +                link-name = "I2S3";
> +                dai-format = "i2s";
> +                mediatek,clk-provider = "cpu";
> +                codec {
> +                        sound-dai = <&rt1015p>;
> +                };
> +        };
> +
> +        hs-playback-dai-link {
> +                link-name = "I2S8";
> +                dai-format = "i2s";
> +                mediatek,clk-provider = "cpu";
> +                codec {
> +                        sound-dai = <&rt5682 0>;
> +                };
> +        };
> +
> +        hs-capture-dai-link {
> +                link-name = "I2S9";
> +                dai-format = "i2s";
> +                mediatek,clk-provider = "cpu";
> +                codec {
> +                        sound-dai = <&rt5682 0>;
> +                };
>          };
>  
> -        speaker-codecs {
> -            sound-dai = <&rt1015_l>,
> -                        <&rt1015_r>;
> +        displayport-dai-link {
> +                link-name = "TDM";
> +                dai-format = "dsp_a";
> +                codec {
> +                        sound-dai = <&anx_bridge_dp>;
> +                };
>          };
>      };
>  
> -- 
> 2.44.0
>
  

Patch

diff --git a/Documentation/devicetree/bindings/sound/mt8192-mt6359-rt1015-rt5682.yaml b/Documentation/devicetree/bindings/sound/mt8192-mt6359-rt1015-rt5682.yaml
index 7e50f5d65c8f..78e221003750 100644
--- a/Documentation/devicetree/bindings/sound/mt8192-mt6359-rt1015-rt5682.yaml
+++ b/Documentation/devicetree/bindings/sound/mt8192-mt6359-rt1015-rt5682.yaml
@@ -20,6 +20,15 @@  properties:
       - mediatek,mt8192_mt6359_rt1015p_rt5682
       - mediatek,mt8192_mt6359_rt1015p_rt5682s
 
+  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 the input or output widgets of audio components,
+      power supplies, MicBias of codec and the software switch.
+
   mediatek,platform:
     $ref: /schemas/types.yaml#/definitions/phandle
     description: The phandle of MT8192 ASoC platform.
@@ -27,10 +36,12 @@  properties:
   mediatek,hdmi-codec:
     $ref: /schemas/types.yaml#/definitions/phandle
     description: The phandle of HDMI codec.
+    deprecated: true
 
   headset-codec:
     type: object
     additionalProperties: false
+    deprecated: true
 
     properties:
       sound-dai:
@@ -41,6 +52,7 @@  properties:
   speaker-codecs:
     type: object
     additionalProperties: false
+    deprecated: true
 
     properties:
       sound-dai:
@@ -51,13 +63,83 @@  properties:
     required:
       - sound-dai
 
+patternProperties:
+  ".*-dai-link$":
+    type: object
+    description:
+      Container for dai-link level properties and CODEC sub-nodes.
+
+    properties:
+      link-name:
+        description: Indicates dai-link name and PCM stream name
+        items:
+          enum:
+            - I2S0
+            - I2S1
+            - I2S2
+            - I2S3
+            - I2S4
+            - I2S5
+            - I2S6
+            - I2S7
+            - I2S8
+            - I2S9
+            - TDM
+
+      codec:
+        description: Holds subnode which indicates codec dai.
+        type: object
+        additionalProperties: false
+        properties:
+          sound-dai:
+            minItems: 1
+            maxItems: 2
+        required:
+          - sound-dai
+
+      dai-format:
+        description: audio format
+        items:
+          enum:
+            - i2s
+            - right_j
+            - left_j
+            - dsp_a
+            - dsp_b
+
+      mediatek,clk-provider:
+        $ref: /schemas/types.yaml#/definitions/string
+        description: Indicates dai-link clock master.
+        items:
+          enum:
+            - cpu
+            - codec
+
+    additionalProperties: false
+
+    required:
+      - link-name
+
 additionalProperties: false
 
 required:
   - compatible
   - mediatek,platform
-  - headset-codec
-  - speaker-codecs
+
+allOf:
+  # Disallow dai-link-xxx nodes if the legacy properties are specified
+  - if:
+      patternProperties:
+        ".*-dai-link$": false
+    then:
+      required:
+        - headset-codec
+        - speaker-codecs
+    else:
+      properties:
+        headset-codec: false
+        speaker-codecs: false
+        mediatek,hdmi-codec: false
 
 examples:
   - |
@@ -65,19 +147,50 @@  examples:
     sound: mt8192-sound {
         compatible = "mediatek,mt8192_mt6359_rt1015_rt5682";
         mediatek,platform = <&afe>;
-        mediatek,hdmi-codec = <&anx_bridge_dp>;
         pinctrl-names = "aud_clk_mosi_off",
                         "aud_clk_mosi_on";
         pinctrl-0 = <&aud_clk_mosi_off>;
         pinctrl-1 = <&aud_clk_mosi_on>;
 
-        headset-codec {
-            sound-dai = <&rt5682>;
+        audio-routing =
+                "Headphone Jack", "HPOL",
+                "Headphone Jack", "HPOR",
+                "IN1P", "Headset Mic",
+                "Speakers", "Speaker";
+
+        spk-playback-dai-link {
+                link-name = "I2S3";
+                dai-format = "i2s";
+                mediatek,clk-provider = "cpu";
+                codec {
+                        sound-dai = <&rt1015p>;
+                };
+        };
+
+        hs-playback-dai-link {
+                link-name = "I2S8";
+                dai-format = "i2s";
+                mediatek,clk-provider = "cpu";
+                codec {
+                        sound-dai = <&rt5682 0>;
+                };
+        };
+
+        hs-capture-dai-link {
+                link-name = "I2S9";
+                dai-format = "i2s";
+                mediatek,clk-provider = "cpu";
+                codec {
+                        sound-dai = <&rt5682 0>;
+                };
         };
 
-        speaker-codecs {
-            sound-dai = <&rt1015_l>,
-                        <&rt1015_r>;
+        displayport-dai-link {
+                link-name = "TDM";
+                dai-format = "dsp_a";
+                codec {
+                        sound-dai = <&anx_bridge_dp>;
+                };
         };
     };