Add the rt linux 4.1.3-rt3 as base

Import the rt linux 4.1.3-rt3 as OPNFV kvm base.

It's from git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-rt-devel.git linux-4.1.y-rt and
the base is:

commit 0917f823c59692d751951bf5ea699a2d1e2f26a2
Author: Sebastian Andrzej Siewior <bigeasy@linutronix.de>
Date:   Sat Jul 25 12:13:34 2015 +0200

    Prepare v4.1.3-rt3

    Signed-off-by: Sebastian Andrzej Siewior <bigeasy@linutronix.de>

We lose all the git history this way and it's not good. We
should apply another opnfv project repo in future.

Change-Id: I87543d81c9df70d99c5001fbdf646b202c19f423
Signed-off-by: Yunhong Jiang <yunhong.jiang@intel.com>

1 files changed, 39 insertions, 0 deletions

diff --git a/kernel/Documentation/devicetree/bindings/sound/sgtl5000.txt b/kernel/Documentation/devicetree/bindings/sound/sgtl5000.txt
new file mode 100644
index 000000000..0e5e4eb3e
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/sound/sgtl5000.txt
@@ -0,0 +1,39 @@
+* Freescale SGTL5000 Stereo Codec
+
+Required properties:
+- compatible : "fsl,sgtl5000".
+
+- reg : the I2C address of the device
+
+- clocks : the clock provider of SYS_MCLK
+
+- micbias-resistor-k-ohms : the bias resistor to be used in kOmhs
+	The resistor can take values of 2k, 4k or 8k.
+	If set to 0 it will be off.
+	If this node is not mentioned or if the value is unknown, then
+	micbias	resistor is set to 4K.
+
+- micbias-voltage-m-volts : the bias voltage to be used in mVolts
+	The voltage can take values from 1.25V to 3V by 250mV steps
+	If this node is not mentionned or the value is unknown, then
+	the value is set to 1.25V.
+
+- VDDA-supply : the regulator provider of VDDA
+
+- VDDIO-supply: the regulator provider of VDDIO
+
+Optional properties:
+
+- VDDD-supply : the regulator provider of VDDD
+
+Example:
+
+codec: sgtl5000@0a {
+	compatible = "fsl,sgtl5000";
+	reg = <0x0a>;
+	clocks = <&clks 150>;
+	micbias-resistor-k-ohms = <2>;
+	micbias-voltage-m-volts = <2250>;
+	VDDA-supply = <&reg_3p3v>;
+	VDDIO-supply = <&reg_3p3v>;
+};