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diff --git a/lib/chibios-contrib/ext/mcux-sdk/devices/MCIMX7U5/utilities/fsl_notifier.h b/lib/chibios-contrib/ext/mcux-sdk/devices/MCIMX7U5/utilities/fsl_notifier.h
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+++ b/lib/chibios-contrib/ext/mcux-sdk/devices/MCIMX7U5/utilities/fsl_notifier.h
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+/*
+ * Copyright (c) 2015, Freescale Semiconductor, Inc.
+ * Copyright 2016-2017 NXP
+ * All rights reserved.
+ *
+ * SPDX-License-Identifier: BSD-3-Clause
+ */
+
+#ifndef _FSL_NOTIFIER_H_
+#define _FSL_NOTIFIER_H_
+
+#include "fsl_common.h"
+/*!
+ * @addtogroup notifier
+ * @{
+ */
+
+/*******************************************************************************
+ * Definitions
+ ******************************************************************************/
+
+/*!
+ * @brief Notifier error codes.
+ *
+ * Used as return value of Notifier functions.
+ */
+enum _notifier_status
+{
+    kStatus_NOTIFIER_ErrorNotificationBefore =
+        MAKE_STATUS(kStatusGroup_NOTIFIER, 0), /*!< An error occurs during send "BEFORE" notification. */
+    kStatus_NOTIFIER_ErrorNotificationAfter =
+        MAKE_STATUS(kStatusGroup_NOTIFIER, 1), /*!< An error occurs during send "AFTER" notification. */
+};
+
+/*!
+ * @brief Notifier policies.
+ *
+ * Defines whether the user function execution is forced or not.
+ * For kNOTIFIER_PolicyForcible, the user function is executed regardless of the callback results,
+ * while kNOTIFIER_PolicyAgreement policy is used to exit NOTIFIER_SwitchConfig()
+ * when any of the callbacks returns error code.
+ * See also NOTIFIER_SwitchConfig() description.
+ */
+typedef enum _notifier_policy
+{
+    kNOTIFIER_PolicyAgreement, /*!< NOTIFIER_SwitchConfig() method is exited when any of the callbacks returns error
+                                      code. */
+    kNOTIFIER_PolicyForcible,  /*!< The user function is executed regardless of the results. */
+} notifier_policy_t;
+
+/*! @brief Notification type. Used to notify registered callbacks */
+typedef enum _notifier_notification_type
+{
+    kNOTIFIER_NotifyRecover = 0x00U, /*!< Notify IP to recover to previous work state. */
+    kNOTIFIER_NotifyBefore  = 0x01U, /*!< Notify IP that configuration setting is going to change. */
+    kNOTIFIER_NotifyAfter   = 0x02U, /*!< Notify IP that configuration setting has been changed. */
+} notifier_notification_type_t;
+
+/*!
+ * @brief The callback type, which indicates kinds of notification the callback handles.
+ *
+ * Used in the callback configuration structure (notifier_callback_config_t)
+ * to specify when the registered callback is called during configuration switch initiated by the
+ * NOTIFIER_SwitchConfig().
+ * Callback can be invoked in following situations.
+ *  - Before the configuration switch (Callback return value can affect NOTIFIER_SwitchConfig()
+ *    execution. See the NOTIFIER_SwitchConfig() and notifier_policy_t documentation).
+ *  - After an unsuccessful attempt to switch configuration
+ *  - After a successful configuration switch
+ */
+typedef enum _notifier_callback_type
+{
+    kNOTIFIER_CallbackBefore      = 0x01U, /*!< Callback handles BEFORE notification. */
+    kNOTIFIER_CallbackAfter       = 0x02U, /*!< Callback handles AFTER notification. */
+    kNOTIFIER_CallbackBeforeAfter = 0x03U, /*!< Callback handles BEFORE and AFTER notification. */
+} notifier_callback_type_t;
+
+/*! @brief Notifier user configuration type.
+ *
+ * Reference of the user defined configuration is stored in an array; the notifier switches between these configurations
+ * based on this array.
+ */
+typedef void notifier_user_config_t;
+
+/*! @brief Notifier user function prototype
+ * Use this function to execute specific operations in configuration switch.
+ * Before and after this function execution, different notification is sent to registered callbacks.
+ * If this function returns any error code, NOTIFIER_SwitchConfig() exits.
+ *
+ * @param targetConfig target Configuration.
+ * @param userData Refers to other specific data passed to user function.
+ * @return An error code or kStatus_Success.
+ */
+typedef status_t (*notifier_user_function_t)(notifier_user_config_t *targetConfig, void *userData);
+
+/*! @brief notification block passed to the registered callback function. */
+typedef struct _notifier_notification_block
+{
+    notifier_user_config_t *targetConfig;    /*!< Pointer to target configuration. */
+    notifier_policy_t policy;                /*!< Configure transition policy. */
+    notifier_notification_type_t notifyType; /*!< Configure notification type. */
+} notifier_notification_block_t;
+
+/*!
+ * @brief Callback prototype.
+ *
+ * Declaration of a callback. It is common for registered callbacks.
+ * Reference to function of this type is part of the notifier_callback_config_t callback configuration structure.
+ * Depending on callback type, function of this prototype is called (see NOTIFIER_SwitchConfig())
+ * before configuration switch, after it or in both use cases to notify about
+ * the switch progress (see notifier_callback_type_t). When called, the type of the notification
+ * is passed as a parameter along with the reference to the target configuration structure (see
+ * notifier_notification_block_t) and any data passed during the callback registration. When notified before the
+ * configuration switch, depending on the configuration switch policy (see notifier_policy_t), the callback may deny the
+ * execution of the user function by returning an error code different than kStatus_Success (see
+ * NOTIFIER_SwitchConfig()).
+ *
+ * @param notify Notification block.
+ * @param data Callback data. Refers to the data passed during callback registration. Intended to
+ *  pass any driver or application data such as internal state information.
+ * @return An error code or kStatus_Success.
+ */
+typedef status_t (*notifier_callback_t)(notifier_notification_block_t *notify, void *data);
+
+/*!
+ * @brief Callback configuration structure.
+ *
+ * This structure holds the configuration of callbacks.
+ * Callbacks of this type are expected to be statically allocated.
+ * This structure contains the following application-defined data.
+ *  callback - pointer to the callback function
+ *  callbackType - specifies when the callback is called
+ *  callbackData - pointer to the data passed to the callback.
+ */
+typedef struct _notifier_callback_config
+{
+    notifier_callback_t callback;          /*!< Pointer to the callback function. */
+    notifier_callback_type_t callbackType; /*!< Callback type. */
+    void *callbackData;                    /*!< Pointer to the data passed to the callback. */
+} notifier_callback_config_t;
+
+/*!
+ * @brief Notifier handle structure.
+ *
+ * Notifier handle structure. Contains data necessary for the Notifier proper function.
+ * Stores references to registered configurations, callbacks, information about their numbers,
+ * user function, user data, and other internal data.
+ * NOTIFIER_CreateHandle() must be called to initialize this handle.
+ */
+typedef struct _notifier_handle
+{
+    notifier_user_config_t **configsTable;      /*!< Pointer to configure table. */
+    uint8_t configsNumber;                      /*!< Number of configurations. */
+    notifier_callback_config_t *callbacksTable; /*!< Pointer to callback table. */
+    uint8_t callbacksNumber;                    /*!< Maximum number of callback configurations. */
+    uint8_t errorCallbackIndex;                 /*!< Index of callback returns error. */
+    uint8_t currentConfigIndex;                 /*!< Index of current configuration.  */
+    notifier_user_function_t userFunction;      /*!< User function. */
+    void *userData;                             /*!< User data passed to user function. */
+} notifier_handle_t;
+
+/*******************************************************************************
+ * API
+ ******************************************************************************/
+
+#if defined(__cplusplus)
+extern "C" {
+#endif
+
+/*!
+ * @brief Creates a Notifier handle.
+ *
+ * @param notifierHandle A pointer to the notifier handle.
+ * @param configs A pointer to an array with references to all configurations which is handled by the Notifier.
+ * @param configsNumber Number of configurations. Size of the configuration array.
+ * @param callbacks A pointer to an array of callback configurations.
+ *  If there are no callbacks to register during Notifier initialization, use NULL value.
+ * @param callbacksNumber Number of registered callbacks. Size of the callbacks array.
+ * @param userFunction User function.
+ * @param userData User data passed to user function.
+ * @return An error Code or kStatus_Success.
+ */
+status_t NOTIFIER_CreateHandle(notifier_handle_t *notifierHandle,
+                               notifier_user_config_t **configs,
+                               uint8_t configsNumber,
+                               notifier_callback_config_t *callbacks,
+                               uint8_t callbacksNumber,
+                               notifier_user_function_t userFunction,
+                               void *userData);
+
+/*!
+ * @brief Switches the configuration according to a pre-defined structure.
+ *
+ * This function sets the system to the target configuration. Before transition,
+ * the Notifier sends notifications to all callbacks registered to the callback table.
+ * Callbacks are invoked in the following order: All registered callbacks are notified
+ * ordered by index in the callbacks array. The same order is used for before and after switch notifications.
+ * The notifications before the configuration switch can be used to obtain confirmation about
+ * the change from registered callbacks. If any registered callback denies the
+ * configuration change, further execution of this function depends on the notifier policy: the
+ * configuration change is either forced (kNOTIFIER_PolicyForcible) or exited (kNOTIFIER_PolicyAgreement).
+ * When configuration change is forced, the result of the before switch notifications are ignored. If an
+ * agreement is required, if any callback returns an error code, further notifications
+ * before switch notifications are cancelled and all already notified callbacks are re-invoked.
+ * The index of the callback which returned error code during pre-switch notifications is stored
+ * (any error codes during callbacks re-invocation are ignored) and NOTIFIER_GetErrorCallback() can be used to get it.
+ * Regardless of the policies, if any callback returns an error code, an error code indicating in which phase
+ * the error occurred is returned when NOTIFIER_SwitchConfig() exits.
+ * @param notifierHandle pointer to notifier handle
+ * @param configIndex Index of the target configuration.
+ * @param policy            Transaction policy, kNOTIFIER_PolicyAgreement or kNOTIFIER_PolicyForcible.
+ *
+ * @return An error code or kStatus_Success.
+ *
+ */
+status_t NOTIFIER_SwitchConfig(notifier_handle_t *notifierHandle, uint8_t configIndex, notifier_policy_t policy);
+
+/*!
+ * @brief This function returns the last failed notification callback.
+ *
+ * This function returns an index of the last callback that failed during the configuration switch while
+ * the last NOTIFIER_SwitchConfig() was called. If the last NOTIFIER_SwitchConfig() call ended successfully
+ * value equal to callbacks number is returned. The returned value represents an index in the array of
+ * static call-backs.
+ *
+ * @param notifierHandle Pointer to the notifier handle
+ * @return Callback Index of the last failed callback or value equal to callbacks count.
+ */
+uint8_t NOTIFIER_GetErrorCallbackIndex(notifier_handle_t *notifierHandle);
+
+#if defined(__cplusplus)
+}
+#endif /* __cplusplus */
+
+/*! @}*/
+
+#endif /* _FSL_NOTIFIER_H_ */