linux-kernel - [PATCH 1/2] ASoC: dt-bindings: Add sample format conversion

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Date:   Wed, 27 Jul 2022 19:56:22 +0530
From:   Sameer Pujar <spujar@...dia.com>
To:     <broonie@...nel.org>, <lgirdwood@...il.com>, <robh+dt@...nel.org>,
        <krzysztof.kozlowski+dt@...aro.org>, <perex@...ex.cz>,
        <tiwai@...e.com>, <kuninori.morimoto.gx@...esas.com>
CC:     <alsa-devel@...a-project.org>, <devicetree@...r.kernel.org>,
        <linux-kernel@...r.kernel.org>, Sameer Pujar <spujar@...dia.com>
Subject: [PATCH 1/2] ASoC: dt-bindings: Add sample format conversion

Presently "convert-channels" and "convert-rate" DT bindings are available
for channel and rate fixups respectively.

Similarly add "convert-sample-format" binding to fixup DAI sample format
as well. This is added to simple-card and audio-graph based sound cards.

Signed-off-by: Sameer Pujar <spujar@...dia.com>
Cc: Kuninori Morimoto <kuninori.morimoto.gx@...esas.com>
---
 .../devicetree/bindings/sound/audio-graph-port.yaml | 21 +++++++++++++++++++++
 .../devicetree/bindings/sound/audio-graph.yaml      | 11 +++++++++++
 .../devicetree/bindings/sound/simple-card.yaml      | 15 +++++++++++++++
 3 files changed, 47 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/audio-graph-port.yaml b/Documentation/devicetree/bindings/sound/audio-graph-port.yaml
index 5c36867..d7491038 100644
--- a/Documentation/devicetree/bindings/sound/audio-graph-port.yaml
+++ b/Documentation/devicetree/bindings/sound/audio-graph-port.yaml
@@ -24,6 +24,17 @@ properties:
   convert-channels:
     description: CPU to Codec rate channels.
     $ref: /schemas/types.yaml#/definitions/uint32
+  convert-sample-format:
+    description: CPU to Codec sample format.
+      Value    Format
+        0        S8
+        2        S16_LE
+        6        S24_LE
+        10       S32_LE
+        32       S24_3LE
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [0, 2, 6, 10, 32]
+
 patternProperties:
   "^endpoint(@[0-9a-f]+)?":
     $ref: /schemas/graph.yaml#/$defs/endpoint-base
@@ -70,6 +81,16 @@ patternProperties:
       convert-channels:
         description: CPU to Codec rate channels.
         $ref: /schemas/types.yaml#/definitions/uint32
+      convert-sample-format:
+        description: CPU to Codec sample format.
+          Value    Format
+            0        S8
+            2        S16_LE
+            6        S24_LE
+            10       S32_LE
+            32       S24_3LE
+        $ref: /schemas/types.yaml#/definitions/uint32
+        enum: [0, 2, 6, 10, 32]
 
       dai-tdm-slot-width-map:
         description: Mapping of sample widths to slot widths. For hardware
diff --git a/Documentation/devicetree/bindings/sound/audio-graph.yaml b/Documentation/devicetree/bindings/sound/audio-graph.yaml
index 4b46794..df8a994 100644
--- a/Documentation/devicetree/bindings/sound/audio-graph.yaml
+++ b/Documentation/devicetree/bindings/sound/audio-graph.yaml
@@ -32,6 +32,17 @@ properties:
   convert-channels:
     description: CPU to Codec rate channels.
     $ref: /schemas/types.yaml#/definitions/uint32
+  convert-sample-format:
+    description: CPU to Codec sample format.
+      Value    Format
+        0        S8
+        2        S16_LE
+        6        S24_LE
+        10       S32_LE
+        32       S24_3LE
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [0, 2, 6, 10, 32]
+
   pa-gpios:
     maxItems: 1
   hp-det-gpio:
diff --git a/Documentation/devicetree/bindings/sound/simple-card.yaml b/Documentation/devicetree/bindings/sound/simple-card.yaml
index b261d49..6decd73 100644
--- a/Documentation/devicetree/bindings/sound/simple-card.yaml
+++ b/Documentation/devicetree/bindings/sound/simple-card.yaml
@@ -77,6 +77,17 @@ definitions:
     description: CPU to Codec rate channels.
     $ref: /schemas/types.yaml#/definitions/uint32
 
+  convert-sample-format:
+    description: CPU to Codec sample format.
+      Value    Format
+        0        S8
+        2        S16_LE
+        6        S24_LE
+        10       S32_LE
+        32       S24_3LE
+    $ref: /schemas/types.yaml#/definitions/uint32
+    enum: [0, 2, 6, 10, 32]
+
   prefix:
     description: "device name prefix"
     $ref: /schemas/types.yaml#/definitions/string
@@ -191,6 +202,8 @@ properties:
     $ref: "#/definitions/convert-rate"
   simple-audio-card,convert-channels:
     $ref: "#/definitions/convert-channels"
+  simple-audio-card,convert-sample-format:
+    $ref: "#/definitions/convert-sample-format"
   simple-audio-card,prefix:
     $ref: "#/definitions/prefix"
   simple-audio-card,pin-switches:
@@ -234,6 +247,8 @@ patternProperties:
         $ref: "#/definitions/convert-rate"
       convert-channels:
         $ref: "#/definitions/convert-channels"
+      convert-sample-format:
+        $ref: "#/definitions/convert-sample-format"
       prefix:
         $ref: "#/definitions/prefix"
       pin-switches:
-- 
2.7.4