linux-kernel - [PATCH v2 2/4] dt-binding: Add sunxi S/PDIF machine driver

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Message-Id: <1443635458-8873-3-git-send-email-codekipper@gmail.com>
Date:	Wed, 30 Sep 2015 19:50:56 +0200
From:	codekipper@...il.com
To:	maxime.ripard@...e-electrons.com
Cc:	lgirdwood@...il.com, linux-arm-kernel@...ts.infradead.org,
	broonie@...nel.org, linux-sunxi@...glegroups.com,
	linux-kernel@...r.kernel.org, alsa-devel@...a-project.org,
	be17068@...rbole.bo.it, Marcus Cooper <codekipper@...il.com>
Subject: [PATCH v2 2/4] dt-binding: Add sunxi S/PDIF machine driver

From: Marcus Cooper <codekipper@...il.com>

Add device tree bindings for the SPDIF machine driver for Allwinner SoC
devices.

Signed-off-by: Marcus Cooper <codekipper@...il.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;
+};
-- 
1.9.1

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