diff --git a/include/linux/mfd/max8997-private.h b/include/linux/mfd/max8997-private.h
new file mode 100644
index 0000000..93a9477
--- /dev/null
+++ b/include/linux/mfd/max8997-private.h
@@ -0,0 +1,347 @@
+/*
+ * max8997.h - Voltage regulator driver for the Maxim 8997
+ *
+ *  Copyright (C) 2010 Samsung Electrnoics
+ *  MyungJoo Ham <myungjoo.ham@samsung.com>
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+
+#ifndef __LINUX_MFD_MAX8997_PRIV_H
+#define __LINUX_MFD_MAX8997_PRIV_H
+
+#include <linux/i2c.h>
+
+enum max8997_pmic_reg {
+	MAX8997_REG_PMIC_ID0	= 0x00,
+	MAX8997_REG_PMIC_ID1	= 0x01,
+	MAX8997_REG_INTSRC	= 0x02,
+	MAX8997_REG_INT1	= 0x03,
+	MAX8997_REG_INT2	= 0x04,
+	MAX8997_REG_INT3	= 0x05,
+	MAX8997_REG_INT4	= 0x06,
+
+	MAX8997_REG_INT1MSK	= 0x08,
+	MAX8997_REG_INT2MSK	= 0x09,
+	MAX8997_REG_INT3MSK	= 0x0a,
+	MAX8997_REG_INT4MSK	= 0x0b,
+
+	MAX8997_REG_STATUS1	= 0x0d,
+	MAX8997_REG_STATUS2	= 0x0e,
+	MAX8997_REG_STATUS3	= 0x0f,
+	MAX8997_REG_STATUS4	= 0x10,
+
+	MAX8997_REG_MAINCON1	= 0x13,
+	MAX8997_REG_MAINCON2	= 0x14,
+	MAX8997_REG_BUCKRAMP	= 0x15,
+
+	MAX8997_REG_BUCK1CTRL	= 0x18,
+	MAX8997_REG_BUCK1DVS1	= 0x19,
+	MAX8997_REG_BUCK1DVS2	= 0x1a,
+	MAX8997_REG_BUCK1DVS3	= 0x1b,
+	MAX8997_REG_BUCK1DVS4	= 0x1c,
+	MAX8997_REG_BUCK1DVS5	= 0x1d,
+	MAX8997_REG_BUCK1DVS6	= 0x1e,
+	MAX8997_REG_BUCK1DVS7	= 0x1f,
+	MAX8997_REG_BUCK1DVS8	= 0x20,
+	MAX8997_REG_BUCK2CTRL	= 0x21,
+	MAX8997_REG_BUCK2DVS1	= 0x22,
+	MAX8997_REG_BUCK2DVS2	= 0x23,
+	MAX8997_REG_BUCK2DVS3	= 0x24,
+	MAX8997_REG_BUCK2DVS4	= 0x25,
+	MAX8997_REG_BUCK2DVS5	= 0x26,
+	MAX8997_REG_BUCK2DVS6	= 0x27,
+	MAX8997_REG_BUCK2DVS7	= 0x28,
+	MAX8997_REG_BUCK2DVS8	= 0x29,
+	MAX8997_REG_BUCK3CTRL	= 0x2a,
+	MAX8997_REG_BUCK3DVS	= 0x2b,
+	MAX8997_REG_BUCK4CTRL	= 0x2c,
+	MAX8997_REG_BUCK4DVS	= 0x2d,
+	MAX8997_REG_BUCK5CTRL	= 0x2e,
+	MAX8997_REG_BUCK5DVS1	= 0x2f,
+	MAX8997_REG_BUCK5DVS2	= 0x30,
+	MAX8997_REG_BUCK5DVS3	= 0x31,
+	MAX8997_REG_BUCK5DVS4	= 0x32,
+	MAX8997_REG_BUCK5DVS5	= 0x33,
+	MAX8997_REG_BUCK5DVS6	= 0x34,
+	MAX8997_REG_BUCK5DVS7	= 0x35,
+	MAX8997_REG_BUCK5DVS8	= 0x36,
+	MAX8997_REG_BUCK6CTRL	= 0x37,
+	MAX8997_REG_BUCK6BPSKIPCTRL	= 0x38,
+	MAX8997_REG_BUCK7CTRL	= 0x39,
+	MAX8997_REG_BUCK7DVS	= 0x3a,
+	MAX8997_REG_LDO1CTRL	= 0x3b,
+	MAX8997_REG_LDO2CTRL	= 0x3c,
+	MAX8997_REG_LDO3CTRL	= 0x3d,
+	MAX8997_REG_LDO4CTRL	= 0x3e,
+	MAX8997_REG_LDO5CTRL	= 0x3f,
+	MAX8997_REG_LDO6CTRL	= 0x40,
+	MAX8997_REG_LDO7CTRL	= 0x41,
+	MAX8997_REG_LDO8CTRL	= 0x42,
+	MAX8997_REG_LDO9CTRL	= 0x43,
+	MAX8997_REG_LDO10CTRL	= 0x44,
+	MAX8997_REG_LDO11CTRL	= 0x45,
+	MAX8997_REG_LDO12CTRL	= 0x46,
+	MAX8997_REG_LDO13CTRL	= 0x47,
+	MAX8997_REG_LDO14CTRL	= 0x48,
+	MAX8997_REG_LDO15CTRL	= 0x49,
+	MAX8997_REG_LDO16CTRL	= 0x4a,
+	MAX8997_REG_LDO17CTRL	= 0x4b,
+	MAX8997_REG_LDO18CTRL	= 0x4c,
+	MAX8997_REG_LDO21CTRL	= 0x4d,
+
+	MAX8997_REG_MBCCTRL1	= 0x50,
+	MAX8997_REG_MBCCTRL2	= 0x51,
+	MAX8997_REG_MBCCTRL3	= 0x52,
+	MAX8997_REG_MBCCTRL4	= 0x53,
+	MAX8997_REG_MBCCTRL5	= 0x54,
+	MAX8997_REG_MBCCTRL6	= 0x55,
+	MAX8997_REG_OTPCGHCVS	= 0x56,
+
+	MAX8997_REG_SAFEOUTCTRL	= 0x5a,
+
+	MAX8997_REG_LBCNFG1	= 0x5e,
+	MAX8997_REG_LBCNFG2	= 0x5f,
+	MAX8997_REG_BBCCTRL	= 0x60,
+
+	MAX8997_REG_FLASH1_CUR	= 0x63, /* 0x63 ~ 0x6e for FLASH */
+	MAX8997_REG_FLASH2_CUR	= 0x64,
+	MAX8997_REG_MOVIE_CUR	= 0x65,
+	MAX8997_REG_GSMB_CUR	= 0x66,
+	MAX8997_REG_BOOST_CNTL	= 0x67,
+	MAX8997_REG_LEN_CNTL	= 0x68,
+	MAX8997_REG_FLASH_CNTL	= 0x69,
+	MAX8997_REG_WDT_CNTL	= 0x6a,
+	MAX8997_REG_MAXFLASH1	= 0x6b,
+	MAX8997_REG_MAXFLASH2	= 0x6c,
+	MAX8997_REG_FLASHSTATUS	= 0x6d,
+	MAX8997_REG_FLASHSTATUSMASK	= 0x6e,
+
+	MAX8997_REG_GPIOCNTL1	= 0x70,
+	MAX8997_REG_GPIOCNTL2	= 0x71,
+	MAX8997_REG_GPIOCNTL3	= 0x72,
+	MAX8997_REG_GPIOCNTL4	= 0x73,
+	MAX8997_REG_GPIOCNTL5	= 0x74,
+	MAX8997_REG_GPIOCNTL6	= 0x75,
+	MAX8997_REG_GPIOCNTL7	= 0x76,
+	MAX8997_REG_GPIOCNTL8	= 0x77,
+	MAX8997_REG_GPIOCNTL9	= 0x78,
+	MAX8997_REG_GPIOCNTL10	= 0x79,
+	MAX8997_REG_GPIOCNTL11	= 0x7a,
+	MAX8997_REG_GPIOCNTL12	= 0x7b,
+
+	MAX8997_REG_LDO1CONFIG	= 0x80,
+	MAX8997_REG_LDO2CONFIG	= 0x81,
+	MAX8997_REG_LDO3CONFIG	= 0x82,
+	MAX8997_REG_LDO4CONFIG	= 0x83,
+	MAX8997_REG_LDO5CONFIG	= 0x84,
+	MAX8997_REG_LDO6CONFIG	= 0x85,
+	MAX8997_REG_LDO7CONFIG	= 0x86,
+	MAX8997_REG_LDO8CONFIG	= 0x87,
+	MAX8997_REG_LDO9CONFIG	= 0x88,
+	MAX8997_REG_LDO10CONFIG	= 0x89,
+	MAX8997_REG_LDO11CONFIG	= 0x8a,
+	MAX8997_REG_LDO12CONFIG	= 0x8b,
+	MAX8997_REG_LDO13CONFIG	= 0x8c,
+	MAX8997_REG_LDO14CONFIG	= 0x8d,
+	MAX8997_REG_LDO15CONFIG	= 0x8e,
+	MAX8997_REG_LDO16CONFIG	= 0x8f,
+	MAX8997_REG_LDO17CONFIG	= 0x90,
+	MAX8997_REG_LDO18CONFIG	= 0x91,
+	MAX8997_REG_LDO21CONFIG	= 0x92,
+
+	MAX8997_REG_DVSOKTIMER1	= 0x97,
+	MAX8997_REG_DVSOKTIMER2	= 0x98,
+	MAX8997_REG_DVSOKTIMER4	= 0x99,
+	MAX8997_REG_DVSOKTIMER5	= 0x9a,
+
+	MAX8997_REG_PMIC_END	= 0x9b,
+};
+
+enum max8997_muic_reg {
+	MAX8997_MUIC_REG_ID		= 0x0,
+	MAX8997_MUIC_REG_INT1		= 0x1,
+	MAX8997_MUIC_REG_INT2		= 0x2,
+	MAX8997_MUIC_REG_INT3		= 0x3,
+	MAX8997_MUIC_REG_STATUS1	= 0x4,
+	MAX8997_MUIC_REG_STATUS2	= 0x5,
+	MAX8997_MUIC_REG_STATUS3	= 0x6,
+	MAX8997_MUIC_REG_INTMASK1	= 0x7,
+	MAX8997_MUIC_REG_INTMASK2	= 0x8,
+	MAX8997_MUIC_REG_INTMASK3	= 0x9,
+	MAX8997_MUIC_REG_CDETCTRL	= 0xa,
+
+	MAX8997_MUIC_REG_CONTROL1	= 0xc,
+	MAX8997_MUIC_REG_CONTROL2	= 0xd,
+	MAX8997_MUIC_REG_CONTROL3	= 0xe,
+
+	MAX8997_MUIC_REG_END		= 0xf,
+};
+
+enum max8997_haptic_reg {
+	MAX8997_HAPTIC_REG_GENERAL	= 0x00,
+	MAX8997_HAPTIC_REG_CONF1	= 0x01,
+	MAX8997_HAPTIC_REG_CONF2	= 0x02,
+	MAX8997_HAPTIC_REG_DRVCONF	= 0x03,
+	MAX8997_HAPTIC_REG_CYCLECONF1	= 0x04,
+	MAX8997_HAPTIC_REG_CYCLECONF2	= 0x05,
+	MAX8997_HAPTIC_REG_SIGCONF1	= 0x06,
+	MAX8997_HAPTIC_REG_SIGCONF2	= 0x07,
+	MAX8997_HAPTIC_REG_SIGCONF3	= 0x08,
+	MAX8997_HAPTIC_REG_SIGCONF4	= 0x09,
+	MAX8997_HAPTIC_REG_SIGDC1	= 0x0a,
+	MAX8997_HAPTIC_REG_SIGDC2	= 0x0b,
+	MAX8997_HAPTIC_REG_SIGPWMDC1	= 0x0c,
+	MAX8997_HAPTIC_REG_SIGPWMDC2	= 0x0d,
+	MAX8997_HAPTIC_REG_SIGPWMDC3	= 0x0e,
+	MAX8997_HAPTIC_REG_SIGPWMDC4	= 0x0f,
+	MAX8997_HAPTIC_REG_MTR_REV	= 0x10,
+
+	MAX8997_HAPTIC_REG_END		= 0x11,
+};
+
+/* slave addr = 0x0c: using "2nd part" of rev4 datasheet */
+enum max8997_rtc_reg {
+	MAX8997_RTC_CTRLMASK		= 0x02,
+	MAX8997_RTC_CTRL		= 0x03,
+	MAX8997_RTC_UPDATE1		= 0x04,
+	MAX8997_RTC_UPDATE2		= 0x05,
+	MAX8997_RTC_WTSR_SMPL		= 0x06,
+
+	MAX8997_RTC_SEC			= 0x10,
+	MAX8997_RTC_MIN			= 0x11,
+	MAX8997_RTC_HOUR		= 0x12,
+	MAX8997_RTC_DAY_OF_WEEK		= 0x13,
+	MAX8997_RTC_MONTH		= 0x14,
+	MAX8997_RTC_YEAR		= 0x15,
+	MAX8997_RTC_DAY_OF_MONTH	= 0x16,
+	MAX8997_RTC_ALARM1_SEC		= 0x17,
+	MAX8997_RTC_ALARM1_MIN		= 0x18,
+	MAX8997_RTC_ALARM1_HOUR		= 0x19,
+	MAX8997_RTC_ALARM1_DAY_OF_WEEK	= 0x1a,
+	MAX8997_RTC_ALARM1_MONTH	= 0x1b,
+	MAX8997_RTC_ALARM1_YEAR		= 0x1c,
+	MAX8997_RTC_ALARM1_DAY_OF_MONTH	= 0x1d,
+	MAX8997_RTC_ALARM2_SEC		= 0x1e,
+	MAX8997_RTC_ALARM2_MIN		= 0x1f,
+	MAX8997_RTC_ALARM2_HOUR		= 0x20,
+	MAX8997_RTC_ALARM2_DAY_OF_WEEK	= 0x21,
+	MAX8997_RTC_ALARM2_MONTH	= 0x22,
+	MAX8997_RTC_ALARM2_YEAR		= 0x23,
+	MAX8997_RTC_ALARM2_DAY_OF_MONTH	= 0x24,
+};
+
+enum max8997_irq_source {
+	PMIC_INT1 = 0,
+	PMIC_INT2,
+	PMIC_INT3,
+	PMIC_INT4,
+
+	FUEL_GAUGE, /* Ignored (MAX17042 driver handles) */
+
+	MUIC_INT1,
+	MUIC_INT2,
+	MUIC_INT3,
+
+	GPIO_LOW, /* Not implemented */
+	GPIO_HI, /* Not implemented */
+
+	FLASH_STATUS, /* Not implemented */
+
+	MAX8997_IRQ_GROUP_NR,
+};
+
+enum max8997_irq {
+	MAX8997_PMICIRQ_PWRONR,
+	MAX8997_PMICIRQ_PWRONF,
+	MAX8997_PMICIRQ_PWRON1SEC,
+	MAX8997_PMICIRQ_JIGONR,
+	MAX8997_PMICIRQ_JIGONF,
+	MAX8997_PMICIRQ_LOWBAT2,
+	MAX8997_PMICIRQ_LOWBAT1,
+
+	MAX8997_PMICIRQ_JIGR,
+	MAX8997_PMICIRQ_JIGF,
+	MAX8997_PMICIRQ_MR,
+	MAX8997_PMICIRQ_DVS1OK,
+	MAX8997_PMICIRQ_DVS2OK,
+	MAX8997_PMICIRQ_DVS3OK,
+	MAX8997_PMICIRQ_DVS4OK,
+
+	MAX8997_PMICIRQ_CHGINS,
+	MAX8997_PMICIRQ_CHGRM,
+	MAX8997_PMICIRQ_DCINOVP,
+	MAX8997_PMICIRQ_TOPOFFR,
+	MAX8997_PMICIRQ_CHGRSTF,
+	MAX8997_PMICIRQ_MBCHGTMEXPD,
+
+	MAX8997_PMICIRQ_RTC60S,
+	MAX8997_PMICIRQ_RTCA1,
+	MAX8997_PMICIRQ_RTCA2,
+	MAX8997_PMICIRQ_SMPL_INT,
+	MAX8997_PMICIRQ_RTC1S,
+	MAX8997_PMICIRQ_WTSR,
+
+	MAX8997_MUICIRQ_ADCError,
+	MAX8997_MUICIRQ_ADCLow,
+	MAX8997_MUICIRQ_ADC,
+
+	MAX8997_MUICIRQ_VBVolt,
+	MAX8997_MUICIRQ_DBChg,
+	MAX8997_MUICIRQ_DCDTmr,
+	MAX8997_MUICIRQ_ChgDetRun,
+	MAX8997_MUICIRQ_ChgTyp,
+
+	MAX8997_MUICIRQ_OVP,
+
+	MAX8997_IRQ_NR,
+};
+
+#define MAX8997_REG_BUCK1DVS(x)	(MAX8997_REG_BUCK1DVS1 + (x) - 1)
+#define MAX8997_REG_BUCK2DVS(x)	(MAX8997_REG_BUCK2DVS1 + (x) - 1)
+#define MAX8997_REG_BUCK5DVS(x)	(MAX8997_REG_BUCK5DVS1 + (x) - 1)
+
+struct max8997_dev {
+	struct device *dev;
+	struct i2c_client *i2c; /* 0xcc / PMIC, Battery Control, and FLASH */
+	struct i2c_client *rtc; /* slave addr 0x0c */
+	struct i2c_client *haptic; /* slave addr 0x90 */
+	struct i2c_client *muic; /* slave addr 0x4a */
+	struct mutex iolock;
+
+	int type;
+	struct platform_device *battery; /* battery control (not fuel gauge) */
+
+	bool wakeup;
+
+	/* For hibernation */
+	u8 reg_dump[MAX8997_REG_PMIC_END + MAX8997_MUIC_REG_END +
+		MAX8997_HAPTIC_REG_END];
+};
+
+enum max8997_types {
+	TYPE_MAX8997,
+	TYPE_MAX8966,
+};
+
+extern int max8997_read_reg(struct i2c_client *i2c, u8 reg, u8 *dest);
+extern int max8997_bulk_read(struct i2c_client *i2c, u8 reg, int count,
+				u8 *buf);
+extern int max8997_write_reg(struct i2c_client *i2c, u8 reg, u8 value);
+extern int max8997_bulk_write(struct i2c_client *i2c, u8 reg, int count,
+				u8 *buf);
+extern int max8997_update_reg(struct i2c_client *i2c, u8 reg, u8 val, u8 mask);
+
+#endif /*  __LINUX_MFD_MAX8997_PRIV_H */