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, 60 insertions, 0 deletions

diff --git a/kernel/sound/soc/codecs/cs42l51-i2c.c b/kernel/sound/soc/codecs/cs42l51-i2c.c
new file mode 100644
index 000000000..c40428f25
--- /dev/null
+++ b/kernel/sound/soc/codecs/cs42l51-i2c.c
@@ -0,0 +1,60 @@
+/*
+ * cs42l56.c -- CS42L51 ALSA SoC I2C audio driver
+ *
+ * Copyright 2014 CirrusLogic, Inc.
+ *
+ * Author: Brian Austin <brian.austin@cirrus.com>
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License version 2 as
+ * published by the Free Software Foundation.
+ *
+ */
+
+#include <linux/i2c.h>
+#include <linux/module.h>
+#include <sound/soc.h>
+
+#include "cs42l51.h"
+
+static struct i2c_device_id cs42l51_i2c_id[] = {
+	{"cs42l51", 0},
+	{}
+};
+MODULE_DEVICE_TABLE(i2c, cs42l51_i2c_id);
+
+static int cs42l51_i2c_probe(struct i2c_client *i2c,
+			     const struct i2c_device_id *id)
+{
+	struct regmap_config config;
+
+	config = cs42l51_regmap;
+	config.val_bits = 8;
+	config.reg_bits = 8;
+
+	return cs42l51_probe(&i2c->dev, devm_regmap_init_i2c(i2c, &config));
+}
+
+static int cs42l51_i2c_remove(struct i2c_client *i2c)
+{
+	snd_soc_unregister_codec(&i2c->dev);
+
+	return 0;
+}
+
+static struct i2c_driver cs42l51_i2c_driver = {
+	.driver = {
+		.name = "cs42l51",
+		.owner = THIS_MODULE,
+		.of_match_table = cs42l51_of_match,
+	},
+	.probe = cs42l51_i2c_probe,
+	.remove = cs42l51_i2c_remove,
+	.id_table = cs42l51_i2c_id,
+};
+
+module_i2c_driver(cs42l51_i2c_driver);
+
+MODULE_DESCRIPTION("ASoC CS42L51 I2C Driver");
+MODULE_AUTHOR("Brian Austin, Cirrus Logic Inc, <brian.austin@cirrus.com>");
+MODULE_LICENSE("GPL");