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 moinejf@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>; + }; +};