From: Marcus Cooper <codekip...@gmail.com>
Add device tree bindings for the SPDIF machine driver for Allwinner SoC
devices.
Signed-off-by: Marcus Cooper <codekip...@gmail.com>
---
.../bindings/sound/sunxi-audio-spdif.txt | 36 ++++++++++++++++++++++
1 file changed, 36 insertions(+)
create mode 100644
Documentation/devicetree/bindings/sound/sunxi-audio-spdif.txt
diff --git a/Documentation/devicetree/bindings/sound/sunxi-audio-spdif.txt
b/Documentation/devicetree/bindings/sound/sunxi-audio-spdif.txt
new file mode 100644
index 0000000..b9e8152
--- /dev/null
+++ b/Documentation/devicetree/bindings/sound/sunxi-audio-spdif.txt
@@ -0,0 +1,36 @@
+Allwinner audio complex with S/PDIF transceiver
+
+Required properties:
+
+ - compatible : "Allwinner,sunxi-audio-spdif"
+
+ - model : The user-visible name of this sound complex
+
+ - spdif-controller : The phandle of the Allwinner S/PDIF controller
+
+
+Optional properties:
+
+ - spdif-out : This is a boolean property. If present, the
+ transmitting function of S/PDIF will be enabled,
+ indicating there's a physical S/PDIF out connector
+ or jack on the board or it's connecting to some
+ other IP block, such as an HDMI encoder or
+ display-controller.
+
+ - spdif-in : This is a boolean property. If present, the receiving
+ function of S/PDIF will be enabled, indicating there
+ is a physical S/PDIF in connector/jack on the board.
+
+* Note: At least one of these two properties should be set in the DT binding.
+
+
+Example:
+
+sound-spdif {
+ compatible = "allwinner,sunxi-audio-spdif";
+ model = "sunxi-spdif";
+ spdif-controller = <&spdif>;
+ spdif-out;
+ spdif-in;
+};
--
2.5.3
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