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authorMark Brown <broonie@linaro.org>2014-03-25 21:22:15 +0000
committerMark Brown <broonie@linaro.org>2014-03-25 21:22:15 +0000
commitbad318cd02e7cacb8e93608f050fa001830ad224 (patch)
tree8b47692f96016d7df76da4adb15645e5e1e03ad3 /Documentation
parentc61e9e8c47dd6ed82535e2145954ab3770e3c767 (diff)
parent6a91a17bd7b92b2d2aa9ece85457f52a62fd7708 (diff)
Merge remote-tracking branch 'asoc/topic/simple' into asoc-next
Diffstat (limited to 'Documentation')
-rw-r--r--Documentation/devicetree/bindings/sound/simple-card.txt42
1 files changed, 41 insertions, 1 deletions
diff --git a/Documentation/devicetree/bindings/sound/simple-card.txt b/Documentation/devicetree/bindings/sound/simple-card.txt
index 881914b139ca..131aa2ad7f1a 100644
--- a/Documentation/devicetree/bindings/sound/simple-card.txt
+++ b/Documentation/devicetree/bindings/sound/simple-card.txt
@@ -23,6 +23,11 @@ Optional properties:
Required subnodes:
+- simple-audio-card,dai-link : container for the CPU and CODEC sub-nodes
+ This container may be omitted when the
+ card has only one DAI link.
+ See the examples.
+
- simple-audio-card,cpu : CPU sub-node
- simple-audio-card,codec : CODEC sub-node
@@ -49,7 +54,7 @@ Note:
CPU and CODEC sides as we need to keep the settings identical for both ends
of the link.
-Example:
+Example 1 - single DAI link:
sound {
compatible = "simple-audio-card";
@@ -94,3 +99,38 @@ sh_fsi2: sh_fsi2@ec230000 {
interrupt-parent = <&gic>;
interrupts = <0 146 0x4>;
};
+
+Example 2 - many DAI links:
+
+sound {
+ compatible = "simple-audio-card";
+ simple-audio-card,name = "Cubox Audio";
+ simple-audio-card,format = "i2s";
+
+ simple-audio-card,dai-link@0 { /* I2S - HDMI */
+ simple-audio-card,cpu {
+ sound-dai = <&audio1 0>;
+ };
+ simple-audio-card,codec {
+ sound-dai = <&tda998x 0>;
+ };
+ };
+
+ simple-audio-card,dai-link@1 { /* S/PDIF - HDMI */
+ simple-audio-card,cpu {
+ sound-dai = <&audio1 1>;
+ };
+ simple-audio-card,codec {
+ sound-dai = <&tda998x 1>;
+ };
+ };
+
+ simple-audio-card,dai-link@2 { /* S/PDIF - S/PDIF */
+ simple-audio-card,cpu {
+ sound-dai = <&audio1 1>;
+ };
+ simple-audio-card,codec {
+ sound-dai = <&spdif_codec>;
+ };
+ };
+};