[PATCH v3 2/3] ASoC: dt-bindings: Add sample format conversion

[Sameer Pujar]

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 audio-graph-card based bindings.

Signed-off-by: Sameer Pujar <spujar at nvidia.com>
Cc: Kuninori Morimoto <kuninori.morimoto.gx at renesas.com>
---
 Documentation/devicetree/bindings/sound/audio-graph-port.yaml |  4 ++++
 Documentation/devicetree/bindings/sound/audio-graph.yaml      |  2 ++
 Documentation/devicetree/bindings/sound/dai-params.yaml       | 10 ++++++++++
 3 files changed, 16 insertions(+)

diff --git a/Documentation/devicetree/bindings/sound/audio-graph-port.yaml b/Documentation/devicetree/bindings/sound/audio-graph-port.yaml
index fa3931b..7ff7a4a 100644
--- a/Documentation/devicetree/bindings/sound/audio-graph-port.yaml
+++ b/Documentation/devicetree/bindings/sound/audio-graph-port.yaml
@@ -22,6 +22,8 @@ properties:
     $ref: "/schemas/sound/dai-params.yaml#/$defs/dai-sample-rate"
   convert-channels:
     $ref: "/schemas/sound/dai-params.yaml#/$defs/dai-channels"
+  convert-sample-format:
+    $ref: "/schemas/sound/dai-params.yaml#/$defs/dai-sample-format"
 
 patternProperties:
   "^endpoint(@[0-9a-f]+)?":
@@ -67,6 +69,8 @@ patternProperties:
         $ref: "/schemas/sound/dai-params.yaml#/$defs/dai-sample-rate"
       convert-channels:
         $ref: "/schemas/sound/dai-params.yaml#/$defs/dai-channels"
+      convert-sample-format:
+        $ref: "/schemas/sound/dai-params.yaml#/$defs/dai-sample-format"
 
       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 ffee5c9..aaa99c2 100644
--- a/Documentation/devicetree/bindings/sound/audio-graph.yaml
+++ b/Documentation/devicetree/bindings/sound/audio-graph.yaml
@@ -30,6 +30,8 @@ properties:
     $ref: "/schemas/sound/dai-params.yaml#/$defs/dai-sample-rate"
   convert-channels:
     $ref: "/schemas/sound/dai-params.yaml#/$defs/dai-channels"
+  convert-sample-format:
+    $ref: "/schemas/sound/dai-params.yaml#/$defs/dai-sample-format"
 
   pa-gpios:
     maxItems: 1
diff --git a/Documentation/devicetree/bindings/sound/dai-params.yaml b/Documentation/devicetree/bindings/sound/dai-params.yaml
index f1421a0..f5fb71f 100644
--- a/Documentation/devicetree/bindings/sound/dai-params.yaml
+++ b/Documentation/devicetree/bindings/sound/dai-params.yaml
@@ -19,6 +19,16 @@ $defs:
     minimum: 1
     maximum: 32
 
+  dai-sample-format:
+    description: Audio sample format used by DAI
+    $ref: /schemas/types.yaml#/definitions/string
+    enum:
+      - s8
+      - s16_le
+      - s24_le
+      - s24_3le
+      - s32_le
+
   dai-sample-rate:
     description: Audio sample rate used by DAI
     $ref: /schemas/types.yaml#/definitions/uint32
-- 
2.7.4