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, 55 insertions, 0 deletions

diff --git a/kernel/drivers/media/dvb-frontends/tda8261.h b/kernel/drivers/media/dvb-frontends/tda8261.h
new file mode 100644
index 000000000..9fa5b3076
--- /dev/null
+++ b/kernel/drivers/media/dvb-frontends/tda8261.h
@@ -0,0 +1,55 @@
+/*
+	TDA8261 8PSK/QPSK tuner driver
+	Copyright (C) Manu Abraham (abraham.manu@gmail.com)
+
+	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 __TDA8261_H
+#define __TDA8261_H
+
+enum tda8261_step {
+	TDA8261_STEP_2000 = 0,	/* 2000 kHz */
+	TDA8261_STEP_1000,	/* 1000 kHz */
+	TDA8261_STEP_500,	/*  500 kHz */
+	TDA8261_STEP_250,	/*  250 kHz */
+	TDA8261_STEP_125	/*  125 kHz */
+};
+
+struct tda8261_config {
+//	u8			buf[16];
+	u8			addr;
+	enum tda8261_step	step_size;
+};
+
+#if IS_REACHABLE(CONFIG_DVB_TDA8261)
+
+extern struct dvb_frontend *tda8261_attach(struct dvb_frontend *fe,
+					   const struct tda8261_config *config,
+					   struct i2c_adapter *i2c);
+
+#else
+
+static inline struct dvb_frontend *tda8261_attach(struct dvb_frontend *fe,
+						  const struct tda8261_config *config,
+						  struct i2c_adapter *i2c)
+{
+	printk(KERN_WARNING "%s: Driver disabled by Kconfig\n", __func__);
+	return NULL;
+}
+
+#endif //CONFIG_DVB_TDA8261
+
+#endif// __TDA8261_H