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 | 8 +++++++-
1 file changed, 7 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..1f7005356efb 100644
--- a/Documentation/devicetree/bindings/sound/audio-graph-port.yaml
+++ b/Documentation/devicetree/bindings/sound/audio-graph-port.yaml
@@ -19,7 +19,13 @@ definitions:
properties:
mclk-fs:
$ref: simple-card.yaml#/definitions/mclk-fs
-
+ ch-maps:
+ description: It indicates how CPU / Codec DAIs are related if number of CPU(N) / Codec(M)
+ DAIs were not same in one dai-link. ch-maps is not needed if the numbers were 1:M or N:1
+ or N=M. If N <= M case, ch-maps indicates connection from CPU, if N > M case,ch-maps
+ indicates connection from Codec.
+ ${LINUX}/sound/soc/generic/audio-graph-card2-custom-sample.dtsi is good sample.
+ $ref: /schemas/types.yaml#/definitions/uint32-array
endpoint-base:
allOf:
- $ref: /schemas/graph.yaml#/$defs/endpoint-base
--
2.25.1
