There may be many couples of CPU/CODEC DAI links.
The example 2 is extracted from the Cubox DT.
Signed-off-by: Jean-Francois Moine <moin...@free.fr>
---
.../devicetree/bindings/sound/simple-card.txt | 34 +++++++++++++++++++++-
1 file changed, 33 insertions(+), 1 deletion(-)
diff --git a/Documentation/devicetree/bindings/sound/simple-card.txt
b/Documentation/devicetree/bindings/sound/simple-card.txt
index 0527358..60306bf 100644
--- a/Documentation/devicetree/bindings/sound/simple-card.txt
+++ b/Documentation/devicetree/bindings/sound/simple-card.txt
@@ -24,6 +24,9 @@ Required subnodes:
- simple-audio-card,cpu : CPU sub-node
- simple-audio-card,codec : CODEC sub-node
+ There may be one or many couples (simple-audio-card,cpu,
simple-audio-card,codec)
+ (see example 2).
+
Required CPU/CODEC subnodes properties:
- sound-dai : phandle and port of CPU/CODEC
@@ -41,7 +44,7 @@ Optional CPU/CODEC subnodes properties:
clock node (= common clock), or
"system-clock-frequency"
(if system doens't support common
clock)
-Example:
+Example 1:
sound {
compatible = "simple-audio-card";
@@ -83,3 +86,32 @@ sh_fsi2: sh_fsi2@ec230000 {
interrupt-parent = <&gic>;
interrupts = <0 146 0x4>;
};
+
+Example 2:
+
+sound {
+ compatible = "simple-audio-card";
+ simple-audio-card,name = "Cubox Audio";
+
+ simple-audio-card,cpu@0 { /* I2S - HDMI */
+ sound-dai = <&audio1 0>;
+ format = "i2s";
+ };
+ simple-audio-card,codec@0 {
+ sound-dai = <&tda998x 0>;
+ };
+
+ simple-audio-card,cpu@1 { /* S/PDIF - HDMI */
+ sound-dai = <&audio1 1>;
+ };
+ simple-audio-card,codec@1 {
+ sound-dai = <&tda998x 1>;
+ };
+
+ simple-audio-card,cpu@2 { /* S/PDIF - S/PDIF */
+ sound-dai = <&audio1 1>;
+ };
+ simple-audio-card,codec@2 {
+ sound-dai = <&spdif_codec>;
+ };
+};
--
1.9.0
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