Add devicetree source files as of Linux-3.15-rc2

This adds the Linux dts files to barebox. The dts files are
generated from Ian Campbells device-tree-rebasing.git:

git://xenbits.xen.org/people/ianc/device-tree-rebasing.git

The dts are found in dts/ in the barebox repository and
will be updated from upstream regularly, probably for each upstream
-rc.

To keep the synchronization with upstream easy no changes to
the original files are allowed under dts/. Instead changes to
upstream dts files will be done using overlays in arch/$ARCH/dts/.

Signed-off-by: Sascha Hauer <s.hauer@pengutronix.de>

1 files changed, 17 insertions, 0 deletions

diff --git a/dts/Bindings/sound/ak4642.txt b/dts/Bindings/sound/ak4642.txt
new file mode 100644
index 0000000000..623d4e70ae
--- /dev/null
+++ b/dts/Bindings/sound/ak4642.txt
@@ -0,0 +1,17 @@
+AK4642 I2C transmitter
+
+This device supports I2C mode only.
+
+Required properties:
+
+  - compatible : "asahi-kasei,ak4642" or "asahi-kasei,ak4643" or "asahi-kasei,ak4648"
+  - reg : The chip select number on the I2C bus
+
+Example:
+
+&i2c {
+	ak4648: ak4648@0x12 {
+		compatible = "asahi-kasei,ak4642";
+		reg = <0x12>;
+	};
+};