Merge branch 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6

* 'i2c-for-linus' of git://jdelvare.pck.nerim.net/jdelvare-2.6:
  i2c: Fix OMAP clock prescaler to match the comment
  i2c: Refactor a kfree in i2c-dev
  i2c: Fix return value check in i2c-dev
  i2c: Enable PEC on more i2c-i801 devices
  i2c: Discard the i2c algo del_bus wrappers
  i2c: New ARM Versatile/Realview bus driver
  i2c: fix broken ds1337 initialization
  i2c: i2c-i801 documentation update
  i2c: Use the __ATTR macro where possible
  i2c: Whitespace cleanups
  i2c: Use put_user instead of copy_to_user where possible
  i2c: New Atmel AT91 bus driver
  i2c: Add support for nested i2c bus locking
  i2c: Cleanups to the i2c-nforce2 bus driver
  i2c: Add request/release_mem_region to i2c-ibm_iic bus driver
  i2c: New Philips PNX bus driver
  i2c: Delete the broken i2c-ite bus driver
  i2c: Update the list of driver IDs
  i2c: Fix documentation typos

9 files changed, 157 insertions, 127 deletions

diff --git a/include/asm-arm/arch-pnx4008/i2c.h b/include/asm-arm/arch-pnx4008/i2c.h
new file mode 100644
index 0000000..92e8d65
--- /dev/null
+++ b/include/asm-arm/arch-pnx4008/i2c.h
@@ -0,0 +1,67 @@
+/*
+ * PNX4008-specific tweaks for I2C IP3204 block
+ *
+ * Author: Vitaly Wool <vwool@ru.mvista.com>
+ *
+ * 2005 (c) MontaVista Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+
+#ifndef __ASM_ARCH_I2C_H__
+#define __ASM_ARCH_I2C_H__
+
+#include <linux/pm.h>
+#include <linux/platform_device.h>
+
+enum {
+	mstatus_tdi = 0x00000001,
+	mstatus_afi = 0x00000002,
+	mstatus_nai = 0x00000004,
+	mstatus_drmi = 0x00000008,
+	mstatus_active = 0x00000020,
+	mstatus_scl = 0x00000040,
+	mstatus_sda = 0x00000080,
+	mstatus_rff = 0x00000100,
+	mstatus_rfe = 0x00000200,
+	mstatus_tff = 0x00000400,
+	mstatus_tfe = 0x00000800,
+};
+
+enum {
+	mcntrl_tdie = 0x00000001,
+	mcntrl_afie = 0x00000002,
+	mcntrl_naie = 0x00000004,
+	mcntrl_drmie = 0x00000008,
+	mcntrl_daie = 0x00000020,
+	mcntrl_rffie = 0x00000040,
+	mcntrl_tffie = 0x00000080,
+	mcntrl_reset = 0x00000100,
+	mcntrl_cdbmode = 0x00000400,
+};
+
+enum {
+	rw_bit = 1 << 0,
+	start_bit = 1 << 8,
+	stop_bit = 1 << 9,
+};
+
+#define I2C_REG_RX(a)	((a)->ioaddr)		/* Rx FIFO reg (RO) */
+#define I2C_REG_TX(a)	((a)->ioaddr)		/* Tx FIFO reg (WO) */
+#define I2C_REG_STS(a)	((a)->ioaddr + 0x04)	/* Status reg (RO) */
+#define I2C_REG_CTL(a)	((a)->ioaddr + 0x08)	/* Ctl reg */
+#define I2C_REG_CKL(a)	((a)->ioaddr + 0x0c)	/* Clock divider low */
+#define I2C_REG_CKH(a)	((a)->ioaddr + 0x10)	/* Clock divider high */
+#define I2C_REG_ADR(a)	((a)->ioaddr + 0x14)	/* I2C address */
+#define I2C_REG_RFL(a)	((a)->ioaddr + 0x18)	/* Rx FIFO level (RO) */
+#define I2C_REG_TFL(a)	((a)->ioaddr + 0x1c)	/* Tx FIFO level (RO) */
+#define I2C_REG_RXB(a)	((a)->ioaddr + 0x20)	/* Num of bytes Rx-ed (RO) */
+#define I2C_REG_TXB(a)	((a)->ioaddr + 0x24)	/* Num of bytes Tx-ed (RO) */
+#define I2C_REG_TXS(a)	((a)->ioaddr + 0x28)	/* Tx slave FIFO (RO) */
+#define I2C_REG_STFL(a)	((a)->ioaddr + 0x2c)	/* Tx slave FIFO level (RO) */
+
+#define HCLK_MHZ		13
+#define I2C_CHIP_NAME		"PNX4008-I2C"
+
+#endif				/* __ASM_ARCH_I2C_H___ */
diff --git a/include/linux/i2c-algo-bit.h b/include/linux/i2c-algo-bit.h
index c8f8df2..937da70 100644
--- a/include/linux/i2c-algo-bit.h
+++ b/include/linux/i2c-algo-bit.h
@@ -26,9 +26,9 @@
 
 /* --- Defines for bit-adapters ---------------------------------------	*/
 /*
- * This struct contains the hw-dependent functions of bit-style adapters to 
+ * This struct contains the hw-dependent functions of bit-style adapters to
  * manipulate the line states, and to init any hw-specific features. This is
- * only used if you have more than one hw-type of adapter running. 
+ * only used if you have more than one hw-type of adapter running.
  */
 struct i2c_algo_bit_data {
 	void *data;		/* private data for lowlevel routines */
@@ -44,6 +44,5 @@ struct i2c_algo_bit_data {
 };
 
 int i2c_bit_add_bus(struct i2c_adapter *);
-int i2c_bit_del_bus(struct i2c_adapter *);
 
 #endif /* _LINUX_I2C_ALGO_BIT_H */
diff --git a/include/linux/i2c-algo-ite.h b/include/linux/i2c-algo-ite.h
deleted file mode 100644
index 0073fe9..0000000
--- a/include/linux/i2c-algo-ite.h
+++ /dev/null
@@ -1,72 +0,0 @@
-/* ------------------------------------------------------------------------- */
-/* i2c-algo-ite.h i2c driver algorithms for ITE IIC adapters                 */
-/* ------------------------------------------------------------------------- */
-/*   Copyright (C) 1995-97 Simon G. Vogl
-                   1998-99 Hans Berglund
-
-    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., 675 Mass Ave, Cambridge, MA 02139, USA.                */
-/* ------------------------------------------------------------------------- */
-
-/* With some changes from Kyösti Mälkki <kmalkki@cc.hut.fi> and even
-   Frodo Looijaard <frodol@dds.nl> */
-
-/* Modifications by MontaVista Software, 2001
-   Changes made to support the ITE IIC peripheral */
-
-
-#ifndef I2C_ALGO_ITE_H
-#define I2C_ALGO_ITE_H 1
-
-#include <linux/types.h>
-
-/* Example of a sequential read request:
-	struct i2c_iic_msg s_msg; 
-
-	s_msg.addr=device_address;
-	s_msg.len=length;
-	s_msg.buf=buffer;
-	s_msg.waddr=word_address;
-	ioctl(file,I2C_SREAD, &s_msg);
- */
-#define I2C_SREAD	0x780	/* SREAD ioctl command */
-
-struct i2c_iic_msg {
-	__u16 addr;	/* device address */
-	__u16 waddr;	/* word address */
-	short len;	/* msg length */
-	char *buf;	/* pointer to msg data */
-};
-
-#ifdef __KERNEL__
-struct i2c_adapter;
-
-struct i2c_algo_iic_data {
-	void *data;		/* private data for lolevel routines	*/
-	void (*setiic) (void *data, int ctl, int val);
-	int  (*getiic) (void *data, int ctl);
-	int  (*getown) (void *data);
-	int  (*getclock) (void *data);
-	void (*waitforpin) (void);     
-
-	/* local settings */
-	int udelay;
-	int mdelay;
-	int timeout;
-};
-
-int i2c_iic_add_bus(struct i2c_adapter *);
-int i2c_iic_del_bus(struct i2c_adapter *);
-#endif /* __KERNEL__ */
-#endif /* I2C_ALGO_ITE_H */
diff --git a/include/linux/i2c-algo-pca.h b/include/linux/i2c-algo-pca.h
index 226693e..fce47c0 100644
--- a/include/linux/i2c-algo-pca.h
+++ b/include/linux/i2c-algo-pca.h
@@ -10,6 +10,5 @@ struct i2c_algo_pca_data {
 };
 
 int i2c_pca_add_bus(struct i2c_adapter *);
-int i2c_pca_del_bus(struct i2c_adapter *);
 
 #endif /* _LINUX_I2C_ALGO_PCA_H */
diff --git a/include/linux/i2c-algo-pcf.h b/include/linux/i2c-algo-pcf.h
index 9908f3f..994eb86 100644
--- a/include/linux/i2c-algo-pcf.h
+++ b/include/linux/i2c-algo-pcf.h
@@ -31,7 +31,7 @@ struct i2c_algo_pcf_data {
 	int  (*getpcf) (void *data, int ctl);
 	int  (*getown) (void *data);
 	int  (*getclock) (void *data);
-	void (*waitforpin) (void);     
+	void (*waitforpin) (void);
 
 	/* local settings */
 	int udelay;
@@ -39,6 +39,5 @@ struct i2c_algo_pcf_data {
 };
 
 int i2c_pcf_add_bus(struct i2c_adapter *);
-int i2c_pcf_del_bus(struct i2c_adapter *);
 
 #endif /* _LINUX_I2C_ALGO_PCF_H */
diff --git a/include/linux/i2c-algo-sgi.h b/include/linux/i2c-algo-sgi.h
index 4a0113d..3b77150 100644
--- a/include/linux/i2c-algo-sgi.h
+++ b/include/linux/i2c-algo-sgi.h
@@ -22,6 +22,5 @@ struct i2c_algo_sgi_data {
 };
 
 int i2c_sgi_add_bus(struct i2c_adapter *);
-int i2c_sgi_del_bus(struct i2c_adapter *);
 
 #endif /* I2C_ALGO_SGI_H */
diff --git a/include/linux/i2c-id.h b/include/linux/i2c-id.h
index 0f4cf34..7ae3c332 100644
--- a/include/linux/i2c-id.h
+++ b/include/linux/i2c-id.h
@@ -1,7 +1,7 @@
 /* ------------------------------------------------------------------------- */
-/* 									     */
+/*									     */
 /* i2c-id.h - identifier values for i2c drivers and adapters		     */
-/* 									     */
+/*									     */
 /* ------------------------------------------------------------------------- */
 /*   Copyright (C) 1995-1999 Simon G. Vogl
 
@@ -40,10 +40,10 @@
 #define I2C_DRIVERID_SAA7120	11	/* video encoder		*/
 #define I2C_DRIVERID_SAA7121	12	/* video encoder		*/
 #define I2C_DRIVERID_SAA7185B	13	/* video encoder		*/
-#define I2C_DRIVERID_CH7003	14	/* digital pc to tv encoder 	*/
+#define I2C_DRIVERID_CH7003	14	/* digital pc to tv encoder	*/
 #define I2C_DRIVERID_PCF8574A	15	/* i2c expander - 8 bit in/out	*/
 #define I2C_DRIVERID_PCF8582C	16	/* eeprom			*/
-#define I2C_DRIVERID_AT24Cxx	17	/* eeprom 1/2/4/8/16 K 		*/
+#define I2C_DRIVERID_AT24Cxx	17	/* eeprom 1/2/4/8/16 K		*/
 #define I2C_DRIVERID_TEA6300	18	/* audio mixer			*/
 #define I2C_DRIVERID_BT829	19	/* pc to tv encoder		*/
 #define I2C_DRIVERID_TDA9850	20	/* audio mixer			*/
@@ -82,9 +82,8 @@
 #define I2C_DRIVERID_STM41T00	52	/* real time clock		*/
 #define I2C_DRIVERID_UDA1342	53	/* UDA1342 audio codec		*/
 #define I2C_DRIVERID_ADV7170	54	/* video encoder		*/
-#define I2C_DRIVERID_RADEON	55	/* I2C bus on Radeon boards	*/
 #define I2C_DRIVERID_MAX1617	56	/* temp sensor			*/
-#define I2C_DRIVERID_SAA7191	57	/* video encoder		*/
+#define I2C_DRIVERID_SAA7191	57	/* video decoder		*/
 #define I2C_DRIVERID_INDYCAM	58	/* SGI IndyCam			*/
 #define I2C_DRIVERID_BT832	59	/* CMOS camera video processor	*/
 #define I2C_DRIVERID_TDA9887	60	/* TDA988x IF-PLL demodulator	*/
@@ -132,7 +131,6 @@
 #define I2C_DRIVERID_ADM1021 1008
 #define I2C_DRIVERID_ADM9240 1009
 #define I2C_DRIVERID_LTC1710 1010
-#define I2C_DRIVERID_ICSPLL 1012
 #define I2C_DRIVERID_BT869 1013
 #define I2C_DRIVERID_MAXILIFE 1014
 #define I2C_DRIVERID_MATORB 1015
@@ -165,7 +163,7 @@
  * ---- Adapter types ----------------------------------------------------
  */
 
-/* --- Bit algorithm adapters 						*/
+/* --- Bit algorithm adapters						*/
 #define I2C_HW_B_LP		0x010000 /* Parallel port Philips style */
 #define I2C_HW_B_SER		0x010002 /* Serial line interface */
 #define I2C_HW_B_BT848		0x010005 /* BT848 video boards */
@@ -213,9 +211,6 @@
 /* --- MPC8xx PowerPC adapters						*/
 #define I2C_HW_MPC8XX_EPON	0x110000 /* Eponymous MPC8xx I2C adapter */
 
-/* --- ITE based algorithms						*/
-#define I2C_HW_I_IIC		0x080000 /* controller on the ITE */
-
 /* --- PowerPC on-chip adapters						*/
 #define I2C_HW_OCP		0x120000 /* IBM on-chip I2C adapter */
 
diff --git a/include/linux/i2c-pnx.h b/include/linux/i2c-pnx.h
new file mode 100644
index 0000000..e6e9c81
--- /dev/null
+++ b/include/linux/i2c-pnx.h
@@ -0,0 +1,43 @@
+/*
+ * Header file for I2C support on PNX010x/4008.
+ *
+ * Author: Dennis Kovalev <dkovalev@ru.mvista.com>
+ *
+ * 2004-2006 (c) MontaVista Software, Inc. This file is licensed under
+ * the terms of the GNU General Public License version 2. This program
+ * is licensed "as is" without any warranty of any kind, whether express
+ * or implied.
+ */
+
+#ifndef __I2C_PNX_H__
+#define __I2C_PNX_H__
+
+#include <asm/arch/i2c.h>
+
+struct i2c_pnx_mif {
+	int			ret;		/* Return value */
+	int			mode;		/* Interface mode */
+	struct completion	complete;	/* I/O completion */
+	struct timer_list	timer;		/* Timeout */
+	char *			buf;		/* Data buffer */
+	int			len;		/* Length of data buffer */
+};
+
+struct i2c_pnx_algo_data {
+	u32			base;
+	u32			ioaddr;
+	int			irq;
+	struct i2c_pnx_mif	mif;
+	int			last;
+};
+
+struct i2c_pnx_data {
+	int (*suspend) (struct platform_device *pdev, pm_message_t state);
+	int (*resume) (struct platform_device *pdev);
+	u32 (*calculate_input_freq) (struct platform_device *pdev);
+	int (*set_clock_run) (struct platform_device *pdev);
+	int (*set_clock_stop) (struct platform_device *pdev);
+	struct i2c_adapter *adapter;
+};
+
+#endif /* __I2C_PNX_H__ */
diff --git a/include/linux/i2c.h b/include/linux/i2c.h
index 9b5d047..71e50d3 100644
--- a/include/linux/i2c.h
+++ b/include/linux/i2c.h
@@ -1,7 +1,7 @@
 /* ------------------------------------------------------------------------- */
-/* 									     */
+/*									     */
 /* i2c.h - definitions for the i2c-bus interface			     */
-/* 									     */
+/*									     */
 /* ------------------------------------------------------------------------- */
 /*   Copyright (C) 1995-2000 Simon G. Vogl
 
@@ -27,7 +27,7 @@
 #define _LINUX_I2C_H
 
 #include <linux/types.h>
-#ifdef __KERNEL__ 
+#ifdef __KERNEL__
 #include <linux/module.h>
 #include <linux/i2c-id.h>
 #include <linux/mod_devicetable.h>
@@ -53,8 +53,8 @@ union i2c_smbus_data;
 
 /*
  * The master routines are the ones normally used to transmit data to devices
- * on a bus (or read from them). Apart from two basic transfer functions to 
- * transmit one message at a time, a more complex version can be used to 
+ * on a bus (or read from them). Apart from two basic transfer functions to
+ * transmit one message at a time, a more complex version can be used to
  * transmit an arbitrary number of messages without interruption.
  */
 extern int i2c_master_send(struct i2c_client *,const char* ,int);
@@ -67,10 +67,10 @@ extern int i2c_transfer(struct i2c_adapter *adap, struct i2c_msg *msgs, int num)
 
 /* This is the very generalized SMBus access routine. You probably do not
    want to use this, though; one of the functions below may be much easier,
-   and probably just as fast. 
+   and probably just as fast.
    Note that we use i2c_adapter here, because you do not need a specific
    smbus adapter to call this function. */
-extern s32 i2c_smbus_xfer (struct i2c_adapter * adapter, u16 addr, 
+extern s32 i2c_smbus_xfer (struct i2c_adapter * adapter, u16 addr,
                            unsigned short flags,
                            char read_write, u8 command, int size,
                            union i2c_smbus_data * data);
@@ -112,14 +112,14 @@ struct i2c_driver {
 
 	/* Notifies the driver that a new bus has appeared. This routine
 	 * can be used by the driver to test if the bus meets its conditions
-	 * & seek for the presence of the chip(s) it supports. If found, it 
+	 * & seek for the presence of the chip(s) it supports. If found, it
 	 * registers the client(s) that are on the bus to the i2c admin. via
 	 * i2c_attach_client.
 	 */
 	int (*attach_adapter)(struct i2c_adapter *);
 	int (*detach_adapter)(struct i2c_adapter *);
 
-	/* tells the driver that a client is about to be deleted & gives it 
+	/* tells the driver that a client is about to be deleted & gives it
 	 * the chance to remove its private data. Also, if the client struct
 	 * has been dynamically allocated by the driver in the function above,
 	 * it must be freed here.
@@ -139,13 +139,13 @@ struct i2c_driver {
 #define I2C_NAME_SIZE	50
 
 /*
- * i2c_client identifies a single device (i.e. chip) that is connected to an 
+ * i2c_client identifies a single device (i.e. chip) that is connected to an
  * i2c bus. The behaviour is defined by the routines of the driver. This
  * function is mainly used for lookup & other admin. functions.
  */
 struct i2c_client {
 	unsigned int flags;		/* div., see below		*/
-	unsigned short addr;		/* chip address - NOTE: 7bit 	*/
+	unsigned short addr;		/* chip address - NOTE: 7bit	*/
 					/* addresses are stored in the	*/
 					/* _LOWER_ 7 bits		*/
 	struct i2c_adapter *adapter;	/* the adapter we sit on	*/
@@ -182,14 +182,14 @@ static inline void i2c_set_clientdata (struct i2c_client *dev, void *data)
  */
 struct i2c_algorithm {
 	/* If an adapter algorithm can't do I2C-level access, set master_xfer
-	   to NULL. If an adapter algorithm can do SMBus access, set 
+	   to NULL. If an adapter algorithm can do SMBus access, set
 	   smbus_xfer. If set to NULL, the SMBus protocol is simulated
 	   using common I2C messages */
 	/* master_xfer should return the number of messages successfully
 	   processed, or a negative value on error */
-	int (*master_xfer)(struct i2c_adapter *adap,struct i2c_msg *msgs, 
+	int (*master_xfer)(struct i2c_adapter *adap,struct i2c_msg *msgs,
 	                   int num);
-	int (*smbus_xfer) (struct i2c_adapter *adap, u16 addr, 
+	int (*smbus_xfer) (struct i2c_adapter *adap, u16 addr,
 	                   unsigned short flags, char read_write,
 	                   u8 command, int size, union i2c_smbus_data * data);
 
@@ -216,6 +216,7 @@ struct i2c_adapter {
 	int (*client_unregister)(struct i2c_client *);
 
 	/* data fields that are valid for all devices	*/
+	u8 level; 			/* nesting level for lockdep */
 	struct mutex bus_lock;
 	struct mutex clist_lock;
 
@@ -316,7 +317,7 @@ extern int i2c_check_addr (struct i2c_adapter *adapter, int addr);
  * It will only call found_proc if some client is connected at the
  * specific address (unless a 'force' matched);
  */
-extern int i2c_probe(struct i2c_adapter *adapter, 
+extern int i2c_probe(struct i2c_adapter *adapter,
 		struct i2c_client_address_data *address_data,
 		int (*found_proc) (struct i2c_adapter *, int, int));
 
@@ -352,15 +353,15 @@ static inline int i2c_adapter_id(struct i2c_adapter *adap)
  */
 struct i2c_msg {
 	__u16 addr;	/* slave address			*/
- 	__u16 flags;		
+	__u16 flags;
 #define I2C_M_TEN	0x10	/* we have a ten bit chip address	*/
 #define I2C_M_RD	0x01
 #define I2C_M_NOSTART	0x4000
 #define I2C_M_REV_DIR_ADDR	0x2000
 #define I2C_M_IGNORE_NAK	0x1000
 #define I2C_M_NO_RD_ACK		0x0800
- 	__u16 len;		/* msg length				*/
- 	__u8 *buf;		/* pointer to msg data			*/
+	__u16 len;		/* msg length				*/
+	__u8 *buf;		/* pointer to msg data			*/
 };
 
 /* To determine what functionality is present */
@@ -370,16 +371,16 @@ struct i2c_msg {
 #define I2C_FUNC_PROTOCOL_MANGLING	0x00000004 /* I2C_M_{REV_DIR_ADDR,NOSTART,..} */
 #define I2C_FUNC_SMBUS_HWPEC_CALC	0x00000008 /* SMBus 2.0 */
 #define I2C_FUNC_SMBUS_BLOCK_PROC_CALL	0x00008000 /* SMBus 2.0 */
-#define I2C_FUNC_SMBUS_QUICK		0x00010000 
-#define I2C_FUNC_SMBUS_READ_BYTE	0x00020000 
-#define I2C_FUNC_SMBUS_WRITE_BYTE	0x00040000 
-#define I2C_FUNC_SMBUS_READ_BYTE_DATA	0x00080000 
-#define I2C_FUNC_SMBUS_WRITE_BYTE_DATA	0x00100000 
-#define I2C_FUNC_SMBUS_READ_WORD_DATA	0x00200000 
-#define I2C_FUNC_SMBUS_WRITE_WORD_DATA	0x00400000 
-#define I2C_FUNC_SMBUS_PROC_CALL	0x00800000 
-#define I2C_FUNC_SMBUS_READ_BLOCK_DATA	0x01000000 
-#define I2C_FUNC_SMBUS_WRITE_BLOCK_DATA 0x02000000 
+#define I2C_FUNC_SMBUS_QUICK		0x00010000
+#define I2C_FUNC_SMBUS_READ_BYTE	0x00020000
+#define I2C_FUNC_SMBUS_WRITE_BYTE	0x00040000
+#define I2C_FUNC_SMBUS_READ_BYTE_DATA	0x00080000
+#define I2C_FUNC_SMBUS_WRITE_BYTE_DATA	0x00100000
+#define I2C_FUNC_SMBUS_READ_WORD_DATA	0x00200000
+#define I2C_FUNC_SMBUS_WRITE_WORD_DATA	0x00400000
+#define I2C_FUNC_SMBUS_PROC_CALL	0x00800000
+#define I2C_FUNC_SMBUS_READ_BLOCK_DATA	0x01000000
+#define I2C_FUNC_SMBUS_WRITE_BLOCK_DATA 0x02000000
 #define I2C_FUNC_SMBUS_READ_I2C_BLOCK	0x04000000 /* I2C-like block xfer  */
 #define I2C_FUNC_SMBUS_WRITE_I2C_BLOCK	0x08000000 /* w/ 1-byte reg. addr. */
 #define I2C_FUNC_SMBUS_READ_I2C_BLOCK_2	 0x10000000 /* I2C-like block xfer  */
@@ -406,10 +407,10 @@ struct i2c_msg {
                              I2C_FUNC_SMBUS_WRITE_BLOCK_DATA | \
                              I2C_FUNC_SMBUS_I2C_BLOCK)
 
-/* 
- * Data for SMBus Messages 
+/*
+ * Data for SMBus Messages
  */
-#define I2C_SMBUS_BLOCK_MAX	32	/* As specified in SMBus standard */	
+#define I2C_SMBUS_BLOCK_MAX	32	/* As specified in SMBus standard */
 union i2c_smbus_data {
 	__u8 byte;
 	__u16 word;
@@ -421,11 +422,11 @@ union i2c_smbus_data {
 #define I2C_SMBUS_READ	1
 #define I2C_SMBUS_WRITE	0
 
-/* SMBus transaction types (size parameter in the above functions) 
+/* SMBus transaction types (size parameter in the above functions)
    Note: these no longer correspond to the (arbitrary) PIIX4 internal codes! */
 #define I2C_SMBUS_QUICK		    0
 #define I2C_SMBUS_BYTE		    1
-#define I2C_SMBUS_BYTE_DATA	    2 
+#define I2C_SMBUS_BYTE_DATA	    2
 #define I2C_SMBUS_WORD_DATA	    3
 #define I2C_SMBUS_PROC_CALL	    4
 #define I2C_SMBUS_BLOCK_DATA	    5
@@ -434,15 +435,15 @@ union i2c_smbus_data {
 
 
 /* ----- commands for the ioctl like i2c_command call:
- * note that additional calls are defined in the algorithm and hw 
- *	dependent layers - these can be listed here, or see the 
+ * note that additional calls are defined in the algorithm and hw
+ *	dependent layers - these can be listed here, or see the
  *	corresponding header files.
  */
 				/* -> bit-adapter specific ioctls	*/
 #define I2C_RETRIES	0x0701	/* number of times a device address      */
 				/* should be polled when not            */
-                                /* acknowledging 			*/
-#define I2C_TIMEOUT	0x0702	/* set timeout - call with int 		*/
+                                /* acknowledging			*/
+#define I2C_TIMEOUT	0x0702	/* set timeout - call with int		*/
 
 
 /* this is for i2c-dev.c	*/