1st port on Multi ports is for paired CPU/Codec, and the 2nd or later
port are for Multi Elements. This patch indicates its image to easy to
understand.
Signed-off-by: Kuninori Morimoto <kuninori.morimoto.gx@xxxxxxxxxxx>
---
sound/soc/generic/audio-graph-card2.c | 52 +++++++++++++--------------
1 file changed, 26 insertions(+), 26 deletions(-)
diff --git a/sound/soc/generic/audio-graph-card2.c b/sound/soc/generic/audio-graph-card2.c
index 7146611df730..c564f630abf6 100644
--- a/sound/soc/generic/audio-graph-card2.c
+++ b/sound/soc/generic/audio-graph-card2.c
@@ -83,32 +83,32 @@
Multi-CPU/Codec
************************************
-It has connection part (= X) and list part (= y).
-links indicates connection part of CPU side (= A).
+It has link connection part (= X,x) and list part (= A,B,a,b).
+"links" is connection part of CPU side (= @).
- +-+ (A) +-+
- CPU1 --(y) | | <-(X)--(X)-> | | (y)-- Codec1
- CPU2 --(y) | | | | (y)-- Codec2
- +-+ +-+
+ +----+ +---+
+ CPU1 --|A X| <-@----> |x a|-- Codec1
+ CPU2 --|B | | b|-- Codec2
+ +----+ +---+
- sound {
- compatible = "audio-graph-card2";
+ sound {
+ compatible = "audio-graph-card2";
-(A) links = <&mcpu>;
+(@) links = <&mcpu>;
- multi {
- ports@0 {
-(X) (A) mcpu: port@0 { mcpu0_ep: endpoint { remote-endpoint = <&mcodec0_ep>; }; };
-(y) port@1 { mcpu1_ep: endpoint { remote-endpoint = <&cpu1_ep>; }; };
-(y) port@2 { mcpu2_ep: endpoint { remote-endpoint = <&cpu2_ep>; }; };
- };
- ports@1 {
-(X) port@0 { mcodec0_ep: endpoint { remote-endpoint = <&mcpu0_ep>; }; };
-(y) port@1 { mcodec1_ep: endpoint { remote-endpoint = <&codec1_ep>; }; };
-(y) port@2 { mcodec2_ep: endpoint { remote-endpoint = <&codec2_ep>; }; };
- };
+ multi {
+ ports@0 {
+(@) mcpu: port@0 { mcpu0_ep: endpoint { remote-endpoint = <&mcodec0_ep>; }; }; // (X) to pair
+ port@1 { mcpu1_ep: endpoint { remote-endpoint = <&cpu1_ep>; }; }; // (A) Multi Element
+ port@2 { mcpu2_ep: endpoint { remote-endpoint = <&cpu2_ep>; }; }; // (B) Multi Element
+ };
+ ports@1 {
+ port@0 { mcodec0_ep: endpoint { remote-endpoint = <&mcpu0_ep>; }; }; // (x) to pair
+ port@1 { mcodec1_ep: endpoint { remote-endpoint = <&codec1_ep>; }; }; // (a) Multi Element
+ port@2 { mcodec2_ep: endpoint { remote-endpoint = <&codec2_ep>; }; }; // (b) Multi Element
};
};
+ };
CPU {
ports {
@@ -328,9 +328,9 @@ static struct device_node *graph_get_next_multi_ep(struct device_node **port)
/*
* multi {
* ports {
- * => lnk: port@0 { ... };
- * port@1 { ep { ... = rep0 } };
- * port@2 { ep { ... = rep1 } };
+ * => lnk: port@0 { ... }; // to pair
+ * port@1 { ep { ... = rep0 } }; // Multi Element
+ * port@2 { ep { ... = rep1 } }; // Multi Element
* ...
* };
* };
@@ -920,9 +920,9 @@ static int graph_counter(struct device_node *lnk)
*
* multi {
* ports {
- * => lnk: port@0 { ... };
- * port@1 { ... };
- * port@2 { ... };
+ * => lnk: port@0 { ... }; // to pair
+ * port@1 { ... }; // Multi Element
+ * port@2 { ... }; // Multi Element
* ...
* };
* };
--
2.25.1
