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, 573 insertions, 0 deletions

diff --git a/kernel/include/linux/regulator/consumer.h b/kernel/include/linux/regulator/consumer.h
new file mode 100644
index 000000000..f8a689ed6
--- /dev/null
+++ b/kernel/include/linux/regulator/consumer.h
@@ -0,0 +1,573 @@
+/*
+ * consumer.h -- SoC Regulator consumer support.
+ *
+ * Copyright (C) 2007, 2008 Wolfson Microelectronics PLC.
+ *
+ * Author: Liam Girdwood <lrg@slimlogic.co.uk>
+ *
+ * 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.
+ *
+ * Regulator Consumer Interface.
+ *
+ * A Power Management Regulator framework for SoC based devices.
+ * Features:-
+ *   o Voltage and current level control.
+ *   o Operating mode control.
+ *   o Regulator status.
+ *   o sysfs entries for showing client devices and status
+ *
+ * EXPERIMENTAL FEATURES:
+ *   Dynamic Regulator operating Mode Switching (DRMS) - allows regulators
+ *   to use most efficient operating mode depending upon voltage and load and
+ *   is transparent to client drivers.
+ *
+ *   e.g. Devices x,y,z share regulator r. Device x and y draw 20mA each during
+ *   IO and 1mA at idle. Device z draws 100mA when under load and 5mA when
+ *   idling. Regulator r has > 90% efficiency in NORMAL mode at loads > 100mA
+ *   but this drops rapidly to 60% when below 100mA. Regulator r has > 90%
+ *   efficiency in IDLE mode at loads < 10mA. Thus regulator r will operate
+ *   in normal mode for loads > 10mA and in IDLE mode for load <= 10mA.
+ *
+ */
+
+#ifndef __LINUX_REGULATOR_CONSUMER_H_
+#define __LINUX_REGULATOR_CONSUMER_H_
+
+#include <linux/err.h>
+
+struct device;
+struct notifier_block;
+struct regmap;
+
+/*
+ * Regulator operating modes.
+ *
+ * Regulators can run in a variety of different operating modes depending on
+ * output load. This allows further system power savings by selecting the
+ * best (and most efficient) regulator mode for a desired load.
+ *
+ * Most drivers will only care about NORMAL. The modes below are generic and
+ * will probably not match the naming convention of your regulator data sheet
+ * but should match the use cases in the datasheet.
+ *
+ * In order of power efficiency (least efficient at top).
+ *
+ *  Mode       Description
+ *  FAST       Regulator can handle fast changes in it's load.
+ *             e.g. useful in CPU voltage & frequency scaling where
+ *             load can quickly increase with CPU frequency increases.
+ *
+ *  NORMAL     Normal regulator power supply mode. Most drivers will
+ *             use this mode.
+ *
+ *  IDLE       Regulator runs in a more efficient mode for light
+ *             loads. Can be used for devices that have a low power
+ *             requirement during periods of inactivity. This mode
+ *             may be more noisy than NORMAL and may not be able
+ *             to handle fast load switching.
+ *
+ *  STANDBY    Regulator runs in the most efficient mode for very
+ *             light loads. Can be used by devices when they are
+ *             in a sleep/standby state. This mode is likely to be
+ *             the most noisy and may not be able to handle fast load
+ *             switching.
+ *
+ * NOTE: Most regulators will only support a subset of these modes. Some
+ * will only just support NORMAL.
+ *
+ * These modes can be OR'ed together to make up a mask of valid register modes.
+ */
+
+#define REGULATOR_MODE_FAST			0x1
+#define REGULATOR_MODE_NORMAL			0x2
+#define REGULATOR_MODE_IDLE			0x4
+#define REGULATOR_MODE_STANDBY			0x8
+
+/*
+ * Regulator notifier events.
+ *
+ * UNDER_VOLTAGE  Regulator output is under voltage.
+ * OVER_CURRENT   Regulator output current is too high.
+ * REGULATION_OUT Regulator output is out of regulation.
+ * FAIL           Regulator output has failed.
+ * OVER_TEMP      Regulator over temp.
+ * FORCE_DISABLE  Regulator forcibly shut down by software.
+ * VOLTAGE_CHANGE Regulator voltage changed.
+ *                Data passed is old voltage cast to (void *).
+ * DISABLE        Regulator was disabled.
+ * PRE_VOLTAGE_CHANGE   Regulator is about to have voltage changed.
+ *                      Data passed is "struct pre_voltage_change_data"
+ * ABORT_VOLTAGE_CHANGE Regulator voltage change failed for some reason.
+ *                      Data passed is old voltage cast to (void *).
+ * PRE_DISABLE    Regulator is about to be disabled
+ * ABORT_DISABLE  Regulator disable failed for some reason
+ *
+ * NOTE: These events can be OR'ed together when passed into handler.
+ */
+
+#define REGULATOR_EVENT_UNDER_VOLTAGE		0x01
+#define REGULATOR_EVENT_OVER_CURRENT		0x02
+#define REGULATOR_EVENT_REGULATION_OUT		0x04
+#define REGULATOR_EVENT_FAIL			0x08
+#define REGULATOR_EVENT_OVER_TEMP		0x10
+#define REGULATOR_EVENT_FORCE_DISABLE		0x20
+#define REGULATOR_EVENT_VOLTAGE_CHANGE		0x40
+#define REGULATOR_EVENT_DISABLE			0x80
+#define REGULATOR_EVENT_PRE_VOLTAGE_CHANGE	0x100
+#define REGULATOR_EVENT_ABORT_VOLTAGE_CHANGE	0x200
+#define REGULATOR_EVENT_PRE_DISABLE		0x400
+#define REGULATOR_EVENT_ABORT_DISABLE		0x800
+
+/**
+ * struct pre_voltage_change_data - Data sent with PRE_VOLTAGE_CHANGE event
+ *
+ * @old_uV: Current voltage before change.
+ * @min_uV: Min voltage we'll change to.
+ * @max_uV: Max voltage we'll change to.
+ */
+struct pre_voltage_change_data {
+	unsigned long old_uV;
+	unsigned long min_uV;
+	unsigned long max_uV;
+};
+
+struct regulator;
+
+/**
+ * struct regulator_bulk_data - Data used for bulk regulator operations.
+ *
+ * @supply:   The name of the supply.  Initialised by the user before
+ *            using the bulk regulator APIs.
+ * @consumer: The regulator consumer for the supply.  This will be managed
+ *            by the bulk API.
+ *
+ * The regulator APIs provide a series of regulator_bulk_() API calls as
+ * a convenience to consumers which require multiple supplies.  This
+ * structure is used to manage data for these calls.
+ */
+struct regulator_bulk_data {
+	const char *supply;
+	struct regulator *consumer;
+
+	/* private: Internal use */
+	int ret;
+};
+
+#if defined(CONFIG_REGULATOR)
+
+/* regulator get and put */
+struct regulator *__must_check regulator_get(struct device *dev,
+					     const char *id);
+struct regulator *__must_check devm_regulator_get(struct device *dev,
+					     const char *id);
+struct regulator *__must_check regulator_get_exclusive(struct device *dev,
+						       const char *id);
+struct regulator *__must_check devm_regulator_get_exclusive(struct device *dev,
+							const char *id);
+struct regulator *__must_check regulator_get_optional(struct device *dev,
+						      const char *id);
+struct regulator *__must_check devm_regulator_get_optional(struct device *dev,
+							   const char *id);
+void regulator_put(struct regulator *regulator);
+void devm_regulator_put(struct regulator *regulator);
+
+int regulator_register_supply_alias(struct device *dev, const char *id,
+				    struct device *alias_dev,
+				    const char *alias_id);
+void regulator_unregister_supply_alias(struct device *dev, const char *id);
+
+int regulator_bulk_register_supply_alias(struct device *dev,
+					 const char *const *id,
+					 struct device *alias_dev,
+					 const char *const *alias_id,
+					 int num_id);
+void regulator_bulk_unregister_supply_alias(struct device *dev,
+					    const char * const *id, int num_id);
+
+int devm_regulator_register_supply_alias(struct device *dev, const char *id,
+					 struct device *alias_dev,
+					 const char *alias_id);
+void devm_regulator_unregister_supply_alias(struct device *dev,
+					    const char *id);
+
+int devm_regulator_bulk_register_supply_alias(struct device *dev,
+					      const char *const *id,
+					      struct device *alias_dev,
+					      const char *const *alias_id,
+					      int num_id);
+void devm_regulator_bulk_unregister_supply_alias(struct device *dev,
+						 const char *const *id,
+						 int num_id);
+
+/* regulator output control and status */
+int __must_check regulator_enable(struct regulator *regulator);
+int regulator_disable(struct regulator *regulator);
+int regulator_force_disable(struct regulator *regulator);
+int regulator_is_enabled(struct regulator *regulator);
+int regulator_disable_deferred(struct regulator *regulator, int ms);
+
+int __must_check regulator_bulk_get(struct device *dev, int num_consumers,
+				    struct regulator_bulk_data *consumers);
+int __must_check devm_regulator_bulk_get(struct device *dev, int num_consumers,
+					 struct regulator_bulk_data *consumers);
+int __must_check regulator_bulk_enable(int num_consumers,
+				       struct regulator_bulk_data *consumers);
+int regulator_bulk_disable(int num_consumers,
+			   struct regulator_bulk_data *consumers);
+int regulator_bulk_force_disable(int num_consumers,
+			   struct regulator_bulk_data *consumers);
+void regulator_bulk_free(int num_consumers,
+			 struct regulator_bulk_data *consumers);
+
+int regulator_can_change_voltage(struct regulator *regulator);
+int regulator_count_voltages(struct regulator *regulator);
+int regulator_list_voltage(struct regulator *regulator, unsigned selector);
+int regulator_is_supported_voltage(struct regulator *regulator,
+				   int min_uV, int max_uV);
+unsigned int regulator_get_linear_step(struct regulator *regulator);
+int regulator_set_voltage(struct regulator *regulator, int min_uV, int max_uV);
+int regulator_set_voltage_time(struct regulator *regulator,
+			       int old_uV, int new_uV);
+int regulator_get_voltage(struct regulator *regulator);
+int regulator_sync_voltage(struct regulator *regulator);
+int regulator_set_current_limit(struct regulator *regulator,
+			       int min_uA, int max_uA);
+int regulator_get_current_limit(struct regulator *regulator);
+
+int regulator_set_mode(struct regulator *regulator, unsigned int mode);
+unsigned int regulator_get_mode(struct regulator *regulator);
+int regulator_set_load(struct regulator *regulator, int load_uA);
+
+int regulator_allow_bypass(struct regulator *regulator, bool allow);
+
+struct regmap *regulator_get_regmap(struct regulator *regulator);
+int regulator_get_hardware_vsel_register(struct regulator *regulator,
+					 unsigned *vsel_reg,
+					 unsigned *vsel_mask);
+int regulator_list_hardware_vsel(struct regulator *regulator,
+				 unsigned selector);
+
+/* regulator notifier block */
+int regulator_register_notifier(struct regulator *regulator,
+			      struct notifier_block *nb);
+int devm_regulator_register_notifier(struct regulator *regulator,
+				     struct notifier_block *nb);
+int regulator_unregister_notifier(struct regulator *regulator,
+				struct notifier_block *nb);
+void devm_regulator_unregister_notifier(struct regulator *regulator,
+					struct notifier_block *nb);
+
+/* driver data - core doesn't touch */
+void *regulator_get_drvdata(struct regulator *regulator);
+void regulator_set_drvdata(struct regulator *regulator, void *data);
+
+#else
+
+/*
+ * Make sure client drivers will still build on systems with no software
+ * controllable voltage or current regulators.
+ */
+static inline struct regulator *__must_check regulator_get(struct device *dev,
+	const char *id)
+{
+	/* Nothing except the stubbed out regulator API should be
+	 * looking at the value except to check if it is an error
+	 * value. Drivers are free to handle NULL specifically by
+	 * skipping all regulator API calls, but they don't have to.
+	 * Drivers which don't, should make sure they properly handle
+	 * corner cases of the API, such as regulator_get_voltage()
+	 * returning 0.
+	 */
+	return NULL;
+}
+
+static inline struct regulator *__must_check
+devm_regulator_get(struct device *dev, const char *id)
+{
+	return NULL;
+}
+
+static inline struct regulator *__must_check
+regulator_get_exclusive(struct device *dev, const char *id)
+{
+	return ERR_PTR(-ENODEV);
+}
+
+static inline struct regulator *__must_check
+regulator_get_optional(struct device *dev, const char *id)
+{
+	return ERR_PTR(-ENODEV);
+}
+
+
+static inline struct regulator *__must_check
+devm_regulator_get_optional(struct device *dev, const char *id)
+{
+	return ERR_PTR(-ENODEV);
+}
+
+static inline void regulator_put(struct regulator *regulator)
+{
+}
+
+static inline void devm_regulator_put(struct regulator *regulator)
+{
+}
+
+static inline int regulator_register_supply_alias(struct device *dev,
+						  const char *id,
+						  struct device *alias_dev,
+						  const char *alias_id)
+{
+	return 0;
+}
+
+static inline void regulator_unregister_supply_alias(struct device *dev,
+						    const char *id)
+{
+}
+
+static inline int regulator_bulk_register_supply_alias(struct device *dev,
+						const char *const *id,
+						struct device *alias_dev,
+						const char * const *alias_id,
+						int num_id)
+{
+	return 0;
+}
+
+static inline void regulator_bulk_unregister_supply_alias(struct device *dev,
+						const char * const *id,
+						int num_id)
+{
+}
+
+static inline int devm_regulator_register_supply_alias(struct device *dev,
+						       const char *id,
+						       struct device *alias_dev,
+						       const char *alias_id)
+{
+	return 0;
+}
+
+static inline void devm_regulator_unregister_supply_alias(struct device *dev,
+							  const char *id)
+{
+}
+
+static inline int devm_regulator_bulk_register_supply_alias(struct device *dev,
+						const char *const *id,
+						struct device *alias_dev,
+						const char *const *alias_id,
+						int num_id)
+{
+	return 0;
+}
+
+static inline void devm_regulator_bulk_unregister_supply_alias(
+	struct device *dev, const char *const *id, int num_id)
+{
+}
+
+static inline int regulator_enable(struct regulator *regulator)
+{
+	return 0;
+}
+
+static inline int regulator_disable(struct regulator *regulator)
+{
+	return 0;
+}
+
+static inline int regulator_force_disable(struct regulator *regulator)
+{
+	return 0;
+}
+
+static inline int regulator_disable_deferred(struct regulator *regulator,
+					     int ms)
+{
+	return 0;
+}
+
+static inline int regulator_is_enabled(struct regulator *regulator)
+{
+	return 1;
+}
+
+static inline int regulator_bulk_get(struct device *dev,
+				     int num_consumers,
+				     struct regulator_bulk_data *consumers)
+{
+	return 0;
+}
+
+static inline int devm_regulator_bulk_get(struct device *dev, int num_consumers,
+					  struct regulator_bulk_data *consumers)
+{
+	return 0;
+}
+
+static inline int regulator_bulk_enable(int num_consumers,
+					struct regulator_bulk_data *consumers)
+{
+	return 0;
+}
+
+static inline int regulator_bulk_disable(int num_consumers,
+					 struct regulator_bulk_data *consumers)
+{
+	return 0;
+}
+
+static inline int regulator_bulk_force_disable(int num_consumers,
+					struct regulator_bulk_data *consumers)
+{
+	return 0;
+}
+
+static inline void regulator_bulk_free(int num_consumers,
+				       struct regulator_bulk_data *consumers)
+{
+}
+
+static inline int regulator_can_change_voltage(struct regulator *regulator)
+{
+	return 0;
+}
+
+static inline int regulator_set_voltage(struct regulator *regulator,
+					int min_uV, int max_uV)
+{
+	return 0;
+}
+
+static inline int regulator_set_voltage_time(struct regulator *regulator,
+					     int old_uV, int new_uV)
+{
+	return 0;
+}
+
+static inline int regulator_get_voltage(struct regulator *regulator)
+{
+	return -EINVAL;
+}
+
+static inline int regulator_is_supported_voltage(struct regulator *regulator,
+				   int min_uV, int max_uV)
+{
+	return 0;
+}
+
+static inline int regulator_set_current_limit(struct regulator *regulator,
+					     int min_uA, int max_uA)
+{
+	return 0;
+}
+
+static inline int regulator_get_current_limit(struct regulator *regulator)
+{
+	return 0;
+}
+
+static inline int regulator_set_mode(struct regulator *regulator,
+	unsigned int mode)
+{
+	return 0;
+}
+
+static inline unsigned int regulator_get_mode(struct regulator *regulator)
+{
+	return REGULATOR_MODE_NORMAL;
+}
+
+static inline int regulator_set_load(struct regulator *regulator, int load_uA)
+{
+	return REGULATOR_MODE_NORMAL;
+}
+
+static inline int regulator_allow_bypass(struct regulator *regulator,
+					 bool allow)
+{
+	return 0;
+}
+
+static inline struct regmap *regulator_get_regmap(struct regulator *regulator)
+{
+	return ERR_PTR(-EOPNOTSUPP);
+}
+
+static inline int regulator_get_hardware_vsel_register(struct regulator *regulator,
+						       unsigned *vsel_reg,
+						       unsigned *vsel_mask)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline int regulator_list_hardware_vsel(struct regulator *regulator,
+					       unsigned selector)
+{
+	return -EOPNOTSUPP;
+}
+
+static inline int regulator_register_notifier(struct regulator *regulator,
+			      struct notifier_block *nb)
+{
+	return 0;
+}
+
+static inline int devm_regulator_register_notifier(struct regulator *regulator,
+						   struct notifier_block *nb)
+{
+	return 0;
+}
+
+static inline int regulator_unregister_notifier(struct regulator *regulator,
+				struct notifier_block *nb)
+{
+	return 0;
+}
+
+static inline int devm_regulator_unregister_notifier(struct regulator *regulator,
+						     struct notifier_block *nb)
+{
+	return 0;
+}
+
+static inline void *regulator_get_drvdata(struct regulator *regulator)
+{
+	return NULL;
+}
+
+static inline void regulator_set_drvdata(struct regulator *regulator,
+	void *data)
+{
+}
+
+static inline int regulator_count_voltages(struct regulator *regulator)
+{
+	return 0;
+}
+#endif
+
+static inline int regulator_set_voltage_tol(struct regulator *regulator,
+					    int new_uV, int tol_uV)
+{
+	if (regulator_set_voltage(regulator, new_uV, new_uV + tol_uV) == 0)
+		return 0;
+	else
+		return regulator_set_voltage(regulator,
+					     new_uV - tol_uV, new_uV + tol_uV);
+}
+
+static inline int regulator_is_supported_voltage_tol(struct regulator *regulator,
+						     int target_uV, int tol_uV)
+{
+	return regulator_is_supported_voltage(regulator,
+					      target_uV - tol_uV,
+					      target_uV + tol_uV);
+}
+
+#endif