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, 149 insertions, 0 deletions

diff --git a/kernel/drivers/i2c/Kconfig b/kernel/drivers/i2c/Kconfig
new file mode 100644
index 000000000..78fbee463
--- /dev/null
+++ b/kernel/drivers/i2c/Kconfig
@@ -0,0 +1,149 @@
+#
+# I2C subsystem configuration
+#
+
+menu "I2C support"
+
+config I2C
+	tristate "I2C support"
+	select RT_MUTEXES
+	---help---
+	  I2C (pronounce: I-squared-C) is a slow serial bus protocol used in
+	  many micro controller applications and developed by Philips.  SMBus,
+	  or System Management Bus is a subset of the I2C protocol.  More
+	  information is contained in the directory <file:Documentation/i2c/>,
+	  especially in the file called "summary" there.
+
+	  Both I2C and SMBus are supported here. You will need this for
+	  hardware sensors support, and also for Video For Linux support.
+
+	  If you want I2C support, you should say Y here and also to the
+	  specific driver for your bus adapter(s) below.
+
+	  This I2C support can also be built as a module.  If so, the module
+	  will be called i2c-core.
+
+config ACPI_I2C_OPREGION
+	bool "ACPI I2C Operation region support"
+	depends on I2C=y && ACPI
+	default y
+	help
+	  Say Y here if you want to enable ACPI I2C operation region support.
+	  Operation Regions allow firmware (BIOS) code to access I2C slave devices,
+	  such as smart batteries through an I2C host controller driver.
+
+if I2C
+
+config I2C_BOARDINFO
+	bool
+	default y
+
+config I2C_COMPAT
+	bool "Enable compatibility bits for old user-space"
+	default y
+	help
+	  Say Y here if you intend to run lm-sensors 3.1.1 or older, or any
+	  other user-space package which expects i2c adapters to be class
+	  devices. If you don't know, say Y.
+
+config I2C_CHARDEV
+	tristate "I2C device interface"
+	help
+	  Say Y here to use i2c-* device files, usually found in the /dev
+	  directory on your system.  They make it possible to have user-space
+	  programs use the I2C bus.  Information on how to do this is
+	  contained in the file <file:Documentation/i2c/dev-interface>.
+
+	  This support is also available as a module.  If so, the module 
+	  will be called i2c-dev.
+
+config I2C_MUX
+	tristate "I2C bus multiplexing support"
+	depends on HAS_IOMEM
+	help
+	  Say Y here if you want the I2C core to support the ability to
+	  handle multiplexed I2C bus topologies, by presenting each
+	  multiplexed segment as a I2C adapter.
+
+	  This support is also available as a module.  If so, the module
+	  will be called i2c-mux.
+
+source drivers/i2c/muxes/Kconfig
+
+config I2C_HELPER_AUTO
+	bool "Autoselect pertinent helper modules"
+	default y
+	help
+	  Some I2C bus drivers require so-called "I2C algorithm" modules
+	  to work. These are basically software-only abstractions of generic
+	  I2C interfaces. This option will autoselect them so that you don't
+	  have to care.
+
+	  Unselect this only if you need to enable additional helper
+	  modules, for example for use with external I2C bus drivers.
+
+	  In doubt, say Y.
+
+config I2C_SMBUS
+	tristate "SMBus-specific protocols" if !I2C_HELPER_AUTO
+	help
+	  Say Y here if you want support for SMBus extensions to the I2C
+	  specification. At the moment, the only supported extension is
+	  the SMBus alert protocol.
+
+	  This support is also available as a module.  If so, the module
+	  will be called i2c-smbus.
+
+source drivers/i2c/algos/Kconfig
+source drivers/i2c/busses/Kconfig
+
+config I2C_STUB
+	tristate "I2C/SMBus Test Stub"
+	depends on m
+	default 'n'
+	help
+	  This module may be useful to developers of SMBus client drivers,
+	  especially for certain kinds of sensor chips.
+
+	  If you do build this module, be sure to read the notes and warnings
+	  in <file:Documentation/i2c/i2c-stub>.
+
+	  If you don't know what to do here, definitely say N.
+
+config I2C_SLAVE
+	bool "I2C slave support"
+
+if I2C_SLAVE
+
+config I2C_SLAVE_EEPROM
+	tristate "I2C eeprom slave driver"
+
+endif
+
+config I2C_DEBUG_CORE
+	bool "I2C Core debugging messages"
+	help
+	  Say Y here if you want the I2C core to produce a bunch of debug
+	  messages to the system log.  Select this if you are having a
+	  problem with I2C support and want to see more of what is going on.
+
+config I2C_DEBUG_ALGO
+	bool "I2C Algorithm debugging messages"
+	help
+	  Say Y here if you want the I2C algorithm drivers to produce a bunch
+	  of debug messages to the system log.  Select this if you are having
+	  a problem with I2C support and want to see more of what is going
+	  on.
+
+config I2C_DEBUG_BUS
+	bool "I2C Bus debugging messages"
+	depends on HAS_IOMEM
+	help
+	  Say Y here if you want the I2C bus drivers to produce a bunch of
+	  debug messages to the system log.  Select this if you are having
+	  a problem with I2C support and want to see more of what is going
+	  on.
+
+endif # I2C
+
+endmenu