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, 37 insertions, 0 deletions

diff --git a/kernel/drivers/media/tuners/mt20xx.h b/kernel/drivers/media/tuners/mt20xx.h
new file mode 100644
index 000000000..9912362b4
--- /dev/null
+++ b/kernel/drivers/media/tuners/mt20xx.h
@@ -0,0 +1,37 @@
+/*
+    This program is free software; you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation; either version 2 of the License, or
+    (at your option) any later version.
+
+    This program is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with this program; if not, write to the Free Software
+    Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+*/
+
+#ifndef __MT20XX_H__
+#define __MT20XX_H__
+
+#include <linux/i2c.h>
+#include "dvb_frontend.h"
+
+#if IS_REACHABLE(CONFIG_MEDIA_TUNER_MT20XX)
+extern struct dvb_frontend *microtune_attach(struct dvb_frontend *fe,
+					     struct i2c_adapter* i2c_adap,
+					     u8 i2c_addr);
+#else
+static inline struct dvb_frontend *microtune_attach(struct dvb_frontend *fe,
+					     struct i2c_adapter* i2c_adap,
+					     u8 i2c_addr)
+{
+	printk(KERN_WARNING "%s: driver disabled by Kconfig\n", __func__);
+	return NULL;
+}
+#endif
+
+#endif /* __MT20XX_H__ */