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, 45 insertions, 0 deletions

diff --git a/kernel/Documentation/devicetree/bindings/gpio/gpio-tz1090-pdc.txt b/kernel/Documentation/devicetree/bindings/gpio/gpio-tz1090-pdc.txt
new file mode 100644
index 000000000..1fd98ffa8
--- /dev/null
+++ b/kernel/Documentation/devicetree/bindings/gpio/gpio-tz1090-pdc.txt
@@ -0,0 +1,45 @@
+ImgTec TZ1090 PDC GPIO Controller
+
+Required properties:
+- compatible: Compatible property value should be "img,tz1090-pdc-gpio".
+
+- reg: Physical base address of the controller and length of memory mapped
+  region. This starts at and cover the SOC_GPIO_CONTROL registers.
+
+- gpio-controller: Specifies that the node is a gpio controller.
+
+- #gpio-cells: Should be 2. The syntax of the gpio specifier used by client
+  nodes should have the following values.
+     <[phandle of the gpio controller node]
+      [PDC gpio number]
+      [gpio flags]>
+
+  Values for gpio specifier:
+  - GPIO number: a value in the range 0 to 6.
+  - GPIO flags: bit field of flags, as defined in <dt-bindings/gpio/gpio.h>.
+    Only the following flags are supported:
+      GPIO_ACTIVE_HIGH
+      GPIO_ACTIVE_LOW
+
+Optional properties:
+- gpio-ranges: Mapping to pin controller pins (as described in
+  Documentation/devicetree/bindings/gpio/gpio.txt)
+
+- interrupts: Individual syswake interrupts (other GPIOs cannot interrupt)
+
+
+Example:
+
+	pdc_gpios: gpio-controller@02006500 {
+		gpio-controller;
+		#gpio-cells = <2>;
+
+		compatible = "img,tz1090-pdc-gpio";
+		reg = <0x02006500 0x100>;
+
+		interrupt-parent = <&pdc>;
+		interrupts =	<8  IRQ_TYPE_NONE>,	/* Syswake 0 */
+				<9  IRQ_TYPE_NONE>,	/* Syswake 1 */
+				<10 IRQ_TYPE_NONE>;	/* Syswake 2 */
+		gpio-ranges = <&pdc_pinctrl 0 0 7>;
+	};