[PATCH v5 5/5] dt-bindings: audio-graph-port: add ch-map-idx property

[Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>]

This patch adds ch-maps property to enable handling CPU:Codec = N:M
connection.

Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
---
 .../devicetree/bindings/sound/audio-graph-port.yaml        | 7 ++++++-
 1 file changed, 6 insertions(+), 1 deletion(-)

diff --git a/Documentation/devicetree/bindings/sound/audio-graph-port.yaml b/Documentation/devicetree/bindings/sound/audio-graph-port.yaml
index 60b5e3fd1115..47f04cdd6670 100644
--- a/Documentation/devicetree/bindings/sound/audio-graph-port.yaml
+++ b/Documentation/devicetree/bindings/sound/audio-graph-port.yaml
@@ -19,7 +19,12 @@ definitions:
     properties:
       mclk-fs:
         $ref: simple-card.yaml#/definitions/mclk-fs
-
+      ch-map-idx:
+        description: It indicates index of ch_maps array for CPU / Codec if number of
+          CPU(N) / Codec(M) DAIs were not same in one dai-link. ch-map-idx is not needed if the
+          numbers were 1:M or N:1 or N=M. see soc.h::[dai_link->ch_maps Image sample] and
+          ${LINUX}/sound/soc/generic/audio-graph-card2-custom-sample.dtsi. It is good sample.
+        $ref: /schemas/types.yaml#/definitions/uint32-array
   endpoint-base:
     allOf:
       - $ref: /schemas/graph.yaml#/$defs/endpoint-base
-- 
2.25.1