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diff --git a/include/linux/platform_data/mlxreg.h b/include/linux/platform_data/mlxreg.h
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index 000000000000..fcdc707eab99
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+++ b/include/linux/platform_data/mlxreg.h
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+/*
+ * Copyright (c) 2017 Mellanox Technologies. All rights reserved.
+ * Copyright (c) 2017 Vadim Pasternak <vadimp@mellanox.com>
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are met:
+ *
+ * 1. Redistributions of source code must retain the above copyright
+ *    notice, this list of conditions and the following disclaimer.
+ * 2. Redistributions in binary form must reproduce the above copyright
+ *    notice, this list of conditions and the following disclaimer in the
+ *    documentation and/or other materials provided with the distribution.
+ * 3. Neither the names of the copyright holders nor the names of its
+ *    contributors may be used to endorse or promote products derived from
+ *    this software without specific prior written permission.
+ *
+ * Alternatively, this software may be distributed under the terms of the
+ * GNU General Public License ("GPL") version 2 as published by the Free
+ * Software Foundation.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+ * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+ * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+ * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+ * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+ * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
+ * POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef __LINUX_PLATFORM_DATA_MLXREG_H
+#define __LINUX_PLATFORM_DATA_MLXREG_H
+
+#define MLXREG_CORE_LABEL_MAX_SIZE      32
+
+/**
+ * struct mlxreg_hotplug_device - I2C device data:
+ *
+ * @adapter: I2C device adapter;
+ * @client: I2C device client;
+ * @brdinfo: device board information;
+ * @nr: I2C device adapter number, to which device is to be attached;
+ *
+ * Structure represents I2C hotplug device static data (board topology) and
+ * dynamic data (related kernel objects handles).
+ */
+struct mlxreg_hotplug_device {
+        struct i2c_adapter *adapter;
+        struct i2c_client *client;
+        struct i2c_board_info *brdinfo;
+        int nr;
+};
+
+/**
+ * struct mlxreg_core_data - attributes control data:
+ *
+ * @label: attribute label;
+ * @label: attribute register offset;
+ * @reg: attribute register;
+ * @mask: attribute access mask;
+ * @mode: access mode;
+ * @bit: attribute effective bit;
+ * @np - pointer to node platform associated with attribute;
+ * @hpdev - hotplug device data;
+ * @health_cntr: dynamic device health indication counter;
+ * @attached: true if device has been attached after good health indication;
+ */
+struct mlxreg_core_data {
+        char label[MLXREG_CORE_LABEL_MAX_SIZE];
+        u32 reg;
+        u32 mask;
+        u32 bit;
+        umode_t mode;
+        struct device_node *np;
+        struct mlxreg_hotplug_device hpdev;
+        u8 health_cntr;
+        bool attached;
+};
+
+/**
+ * struct mlxreg_core_item - same type components controlled by the driver:
+ *
+ * @data: component data;
+ * @aggr_mask: group aggregation mask;
+ * @reg: group interrupt status register;
+ * @mask: group interrupt mask;
+ * @cache: last status value for elements fro the same group;
+ * @count: number of available elements in the group;
+ * @ind: element's index inside the group;
+ * @inversed: if 0: 0 for signal status is OK, if 1 - 1 is OK;
+ * @health: true if device has health indication, false in other case;
+ */
+struct mlxreg_core_item {
+        struct mlxreg_core_data *data;
+        u32 aggr_mask;
+        u32 reg;
+        u32 mask;
+        u32 cache;
+        u8 count;
+        u8 ind;
+        u8 inversed;
+        u8 health;
+};
+
+/**
+ * struct mlxreg_core_platform_data - platform data:
+ *
+ * @led_data: led private data;
+ * @regmap: register map of parent device;
+ * @counter: number of led instances;
+ */
+struct mlxreg_core_platform_data {
+        struct mlxreg_core_data *data;
+        void *regmap;
+        int counter;
+};
+
+/**
+ * struct mlxreg_core_hotplug_platform_data - hotplug platform data:
+ *
+ * @items: same type components with the hotplug capability;
+ * @irq: platform interrupt number;
+ * @regmap: register map of parent device;
+ * @counter: number of the components with the hotplug capability;
+ * @cell: location of top aggregation interrupt register;
+ * @mask: top aggregation interrupt common mask;
+ * @cell_low: location of low aggregation interrupt register;
+ * @mask_low: low aggregation interrupt common mask;
+ */
+struct mlxreg_core_hotplug_platform_data {
+        struct mlxreg_core_item *items;
+        int irq;
+        void *regmap;
+        int counter;
+        u32 cell;
+        u32 mask;
+        u32 cell_low;
+        u32 mask_low;
+};
+
+#endif /* __LINUX_PLATFORM_DATA_MLXREG_H */