ASoC: dt-bindings: mt8186: Document audio-routing and dai-link subnode

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.

Also, since describing machine specific audio hardware and links replaces
the now deprecated old logic doing the same in a driver hardcoded fashion,
it is not allowed to have both the old and new properties together.

Reviewed-by: Rob Herring <robh@kernel.org>
Signed-off-by: AngeloGioacchino Del Regno <angelogioacchino.delregno@collabora.com>
Link: https://lore.kernel.org/r/20240416071410.75620-17-angelogioacchino.delregno@collabora.com
Signed-off-by: Mark Brown <broonie@kernel.org>

diff --git a/Documentation/devicetree/bindings/sound/mt8186-mt6366-da7219-max98357.yaml b/Documentation/devicetree/bindings/sound/mt8186-mt6366-da7219-max98357.yaml
index 9853c11a1330b8bc06433543153096cfac9c63f2..cbc641ecbe94afee731c7494875e11183a9b389e 100644 (file)
--- a/Documentation/devicetree/bindings/sound/mt8186-mt6366-da7219-max98357.yaml
+++ b/Documentation/devicetree/bindings/sound/mt8186-mt6366-da7219-max98357.yaml
@@ -12,17 +12,46 @@ maintainers:
 description:
   This binding describes the MT8186 sound card.
 
+allOf:
+  - $ref: sound-card-common.yaml#
+
 properties:
   compatible:
     enum:
       - mediatek,mt8186-mt6366-da7219-max98357-sound
 
+  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.
+    minItems: 2
+    items:
+      enum:
+        # Sinks
+        - HDMI1
+        - Headphones
+        - Line Out
+        - MIC
+        - Speakers
+
+        # Sources
+        - Headset Mic
+        - HPL
+        - HPR
+        - Speaker
+        - TX
+
   mediatek,platform:
     $ref: /schemas/types.yaml#/definitions/phandle
     description: The phandle of MT8186 ASoC platform.
 
   headset-codec:
     type: object
+    deprecated: true
     additionalProperties: false
     properties:
       sound-dai:
@@ -32,6 +61,7 @@ properties:
 
   playback-codecs:
     type: object
+    deprecated: true
     additionalProperties: false
     properties:
       sound-dai:
@@ -53,32 +83,115 @@ properties:
       A list of the desired dai-links in the sound card. Each entry is a
       name defined in the machine driver.
 
-additionalProperties: false
+patternProperties:
+  ".*-dai-link$":
+    type: object
+    additionalProperties: false
+    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
+
+      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
+
+    required:
+      - link-name
+
+unevaluatedProperties: false
 
 required:
   - compatible
   - mediatek,platform
-  - headset-codec
-  - playback-codecs
+
+# Disallow legacy properties if xxx-dai-link nodes are specified
+if:
+  not:
+    patternProperties:
+      ".*-dai-link$": false
+then:
+  properties:
+    headset-codec: false
+    speaker-codecs: false
 
 examples:
   - |
 
     sound: mt8186-sound {
         compatible = "mediatek,mt8186-mt6366-da7219-max98357-sound";
-        mediatek,platform = <&afe>;
+        model = "mt8186_da7219_m98357";
         pinctrl-names = "aud_clk_mosi_off",
                         "aud_clk_mosi_on";
         pinctrl-0 = <&aud_clk_mosi_off>;
         pinctrl-1 = <&aud_clk_mosi_on>;
+        mediatek,platform = <&afe>;
+
+        audio-routing =
+                "Headphones", "HPL",
+                "Headphones", "HPR",
+                "MIC", "Headset Mic",
+                "Speakers", "Speaker",
+                "HDMI1", "TX";
+
+        hs-playback-dai-link {
+                link-name = "I2S0";
+                dai-format = "i2s";
+                mediatek,clk-provider = "cpu";
+                codec {
+                        sound-dai = <&da7219>;
+                };
+        };
 
-        headset-codec {
-            sound-dai = <&da7219>;
+        hs-capture-dai-link {
+                link-name = "I2S1";
+                dai-format = "i2s";
+                mediatek,clk-provider = "cpu";
+                codec {
+                        sound-dai = <&da7219>;
+                };
         };
 
-        playback-codecs {
-            sound-dai = <&anx_bridge_dp>,
-                        <&max98357a>;
+        spk-dp-playback-dai-link {
+                link-name = "I2S3";
+                dai-format = "i2s";
+                mediatek,clk-provider = "cpu";
+                codec {
+                        sound-dai = <&anx_bridge_dp>, <&max98357a>;
+                };
         };
     };
 

diff --git a/Documentation/devicetree/bindings/sound/mt8186-mt6366-rt1019-rt5682s.yaml b/Documentation/devicetree/bindings/sound/mt8186-mt6366-rt1019-rt5682s.yaml
index bdf7b09605330a910451ceb59792f995d8046de3..ed93f18ef985cfe9b3ba5884af4679510a4bdaaf 100644 (file)
--- a/Documentation/devicetree/bindings/sound/mt8186-mt6366-rt1019-rt5682s.yaml
+++ b/Documentation/devicetree/bindings/sound/mt8186-mt6366-rt1019-rt5682s.yaml
@@ -12,6 +12,9 @@ maintainers:
 description:
   This binding describes the MT8186 sound card.
 
+allOf:
+  - $ref: sound-card-common.yaml#
+
 properties:
   compatible:
     enum:
@@ -19,6 +22,34 @@ properties:
       - mediatek,mt8186-mt6366-rt5682s-max98360-sound
       - mediatek,mt8186-mt6366-rt5650-sound
 
+  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.
+    minItems: 2
+    items:
+      enum:
+        # Sinks
+        - HDMI1
+        - Headphone
+        - IN1P
+        - IN1N
+        - Line Out
+        - Speakers
+
+        # Sources
+        - Headset Mic
+        - HPOL
+        - HPOR
+        - Speaker
+        - SPOL
+        - SPOR
+        - TX
+
   mediatek,platform:
     $ref: /schemas/types.yaml#/definitions/phandle
     description: The phandle of MT8186 ASoC platform.
@@ -32,6 +63,7 @@ properties:
 
   headset-codec:
     type: object
+    deprecated: true
     additionalProperties: false
     properties:
       sound-dai:
@@ -41,6 +73,7 @@ properties:
 
   playback-codecs:
     type: object
+    deprecated: true
     additionalProperties: false
     properties:
       sound-dai:
@@ -62,13 +95,56 @@ properties:
       A list of the desired dai-links in the sound card. Each entry is a
       name defined in the machine driver.
 
-additionalProperties: false
+patternProperties:
+  ".*-dai-link$":
+    type: object
+    additionalProperties: false
+    description:
+      Container for dai-link level properties and CODEC sub-nodes.
+
+    properties:
+      link-name:
+        description: Indicates dai-link name and PCM stream name
+        enum: [ I2S0, I2S1, I2S2, I2S3 ]
+
+      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
+        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.
+        enum: [ cpu, codec ]
+
+    required:
+      - link-name
+
+unevaluatedProperties: false
 
 required:
   - compatible
   - mediatek,platform
-  - headset-codec
-  - playback-codecs
+
+# Disallow legacy properties if xxx-dai-link nodes are specified
+if:
+  not:
+    patternProperties:
+      ".*-dai-link$": false
+then:
+  properties:
+    headset-codec: false
+    speaker-codecs: false
 
 examples:
   - |
@@ -76,23 +152,49 @@ examples:
 
     sound: mt8186-sound {
         compatible = "mediatek,mt8186-mt6366-rt1019-rt5682s-sound";
-        mediatek,platform = <&afe>;
+        model = "mt8186_rt1019_rt5682s";
         pinctrl-names = "aud_clk_mosi_off",
                         "aud_clk_mosi_on",
                         "aud_gpio_dmic_sec";
         pinctrl-0 = <&aud_clk_mosi_off>;
         pinctrl-1 = <&aud_clk_mosi_on>;
         pinctrl-2 = <&aud_gpio_dmic_sec>;
+        mediatek,platform = <&afe>;
 
         dmic-gpios = <&pio 23 GPIO_ACTIVE_HIGH>;
 
-        headset-codec {
-            sound-dai = <&rt5682s>;
+        audio-routing =
+                "Headphone", "HPOL",
+                "Headphone", "HPOR",
+                "IN1P", "Headset Mic",
+                "Speakers", "Speaker",
+                "HDMI1", "TX";
+
+        hs-playback-dai-link {
+                link-name = "I2S0";
+                dai-format = "i2s";
+                mediatek,clk-provider = "cpu";
+                codec {
+                        sound-dai = <&rt5682s 0>;
+                };
+        };
+
+        hs-capture-dai-link {
+                link-name = "I2S1";
+                dai-format = "i2s";
+                mediatek,clk-provider = "cpu";
+                codec {
+                        sound-dai = <&rt5682s 0>;
+                };
         };
 
-        playback-codecs {
-             sound-dai = <&it6505dptx>,
-                         <&rt1019p>;
+        spk-hdmi-playback-dai-link {
+                link-name = "I2S3";
+                dai-format = "i2s";
+                mediatek,clk-provider = "cpu";
+                codec {
+                        sound-dai = <&it6505dptx>, <&rt1019p>;
+                };
         };
     };