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, 42 insertions, 0 deletions

diff --git a/kernel/arch/arm/mach-imx/irq-common.c b/kernel/arch/arm/mach-imx/irq-common.c
new file mode 100644
index 000000000..0a920d184
--- /dev/null
+++ b/kernel/arch/arm/mach-imx/irq-common.c
@@ -0,0 +1,42 @@
+/*
+ * Copyright (C) BitBox Ltd 2010
+ *
+ * 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., 51 Franklin Street, Fifth Floor, Boston,
+ * MA  02110-1301, USA.
+ */
+
+#include <linux/module.h>
+#include <linux/irq.h>
+#include <linux/platform_data/asoc-imx-ssi.h>
+
+#include "irq-common.h"
+
+int mxc_set_irq_fiq(unsigned int irq, unsigned int type)
+{
+	struct irq_chip_generic *gc;
+	struct mxc_extra_irq *exirq;
+	int ret;
+
+	ret = -ENOSYS;
+
+	gc = irq_get_chip_data(irq);
+	if (gc && gc->private) {
+		exirq = gc->private;
+		if (exirq->set_irq_fiq)
+			ret = exirq->set_irq_fiq(irq, type);
+	}
+
+	return ret;
+}
+EXPORT_SYMBOL(mxc_set_irq_fiq);