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

Documentation/feature-removal-schedule.txt

@@ -216,17 +216,6 @@ Who:	Thomas Gleixner <tglx@linutronix.de>
 
 ---------------------------
 
-What:	i2c-ite and i2c-algo-ite drivers
-When:	September 2006
-Why:	These drivers never compiled since they were added to the kernel
-	tree 5 years ago. This feature removal can be reevaluated if
-	someone shows interest in the drivers, fixes them and takes over
-	maintenance.
-	http://marc.theaimsgroup.com/?l=linux-mips&m=115040510817448
-Who:	Jean Delvare <khali@linux-fr.org>
-
----------------------------
-
 What:	Bridge netfilter deferred IPv4/IPv6 output hook calling
 When:	January 2007
 Why:	The deferred output hooks are a layering violation causing unusual

Documentation/i2c/busses/i2c-amd8111

@@ -5,7 +5,7 @@ Supported adapters:
 
 Datasheets:
 	AMD datasheet not yet available, but almost everything can be found
-	in publically available ACPI 2.0 specification, which the adapter 
+	in the publicly available ACPI 2.0 specification, which the adapter
 	follows.
 
 Author: Vojtech Pavlik <vojtech@suse.cz>

Documentation/i2c/busses/i2c-i801

@@ -9,7 +9,10 @@ Supported adapters:
   * Intel 82801EB/ER (ICH5) (HW PEC supported, 32 byte buffer not supported)
   * Intel 6300ESB
   * Intel 82801FB/FR/FW/FRW (ICH6)
-  * Intel ICH7
+  * Intel 82801G (ICH7)
+  * Intel 631xESB/632xESB (ESB2)
+  * Intel 82801H (ICH8)
+  * Intel ICH9
     Datasheets: Publicly available at the Intel website
 
 Authors: 

Documentation/i2c/busses/i2c-nforce2

@@ -10,11 +10,11 @@ Supported adapters:
   * nForce4 MCP51              10de:0264
   * nForce4 MCP55              10de:0368
 
-Datasheet: not publically available, but seems to be similar to the
+Datasheet: not publicly available, but seems to be similar to the
            AMD-8111 SMBus 2.0 adapter.
 
 Authors:
-	Hans-Frieder Vogt <hfvogt@arcor.de>, 
+	Hans-Frieder Vogt <hfvogt@gmx.net>,
 	Thomas Leibold <thomas@plx.com>, 
         Patrick Dreker <patrick@dreker.de>
 	
@@ -38,7 +38,7 @@ Notes
 -----
 
 The SMBus adapter in the nForce2 chipset seems to be very similar to the
-SMBus 2.0 adapter in the AMD-8111 southbridge. However, I could only get
+SMBus 2.0 adapter in the AMD-8111 south bridge. However, I could only get
 the driver to work with direct I/O access, which is different to the EC
 interface of the AMD-8111. Tested on Asus A7N8X. The ACPI DSDT table of the
 Asus A7N8X lists two SMBuses, both of which are supported by this driver.

arch/arm/mach-pnx4008/Makefile

@@ -2,7 +2,7 @@
 # Makefile for the linux kernel.
 #
 
-obj-y			:= core.o irq.o time.o clock.o gpio.o serial.o dma.o
+obj-y			:= core.o irq.o time.o clock.o gpio.o serial.o dma.o i2c.o
 obj-m			:=
 obj-n			:=
 obj-			:=

arch/arm/mach-pnx4008/i2c.c

+/*
+ * I2C initialization for PNX4008.
+ *
+ * Author: Vitaly Wool <vitalywool@gmail.com>
+ *
+ * 2005-2006 (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.
+ */
+
+#include <linux/clk.h>
+#include <linux/i2c.h>
+#include <linux/i2c-pnx.h>
+#include <linux/platform_device.h>
+#include <linux/err.h>
+#include <asm/arch/platform.h>
+#include <asm/arch/i2c.h>
+
+static int set_clock_run(struct platform_device *pdev)
+{
+	struct clk *clk;
+	char name[10];
+	int retval = 0;
+
+	snprintf(name, 10, "i2c%d_ck", pdev->id);
+	clk = clk_get(&pdev->dev, name);
+	if (!IS_ERR(clk)) {
+		clk_set_rate(clk, 1);
+		clk_put(clk);
+	} else
+		retval = -ENOENT;
+
+	return retval;
+}
+
+static int set_clock_stop(struct platform_device *pdev)
+{
+	struct clk *clk;
+	char name[10];
+	int retval = 0;
+
+	snprintf(name, 10, "i2c%d_ck", pdev->id);
+	clk = clk_get(&pdev->dev, name);
+	if (!IS_ERR(clk)) {
+		clk_set_rate(clk, 0);
+		clk_put(clk);
+	} else
+		retval = -ENOENT;
+
+	return retval;
+}
+
+static int i2c_pnx_suspend(struct platform_device *pdev, pm_message_t state)
+{
+	int retval = 0;
+#ifdef CONFIG_PM
+	retval = set_clock_run(pdev);
+#endif
+	return retval;
+}
+
+static int i2c_pnx_resume(struct platform_device *pdev)
+{
+	int retval = 0;
+#ifdef CONFIG_PM
+	retval = set_clock_run(pdev);
+#endif
+	return retval;
+}
+
+static u32 calculate_input_freq(struct platform_device *pdev)
+{
+	return HCLK_MHZ;
+}
+
+
+static struct i2c_pnx_algo_data pnx_algo_data0 = {
+	.base = PNX4008_I2C1_BASE,
+	.irq = I2C_1_INT,
+};
+
+static struct i2c_pnx_algo_data pnx_algo_data1 = {
+	.base = PNX4008_I2C2_BASE,
+	.irq = I2C_2_INT,
+};
+
+static struct i2c_pnx_algo_data pnx_algo_data2 = {
+	.base = (PNX4008_USB_CONFIG_BASE + 0x300),
+	.irq = USB_I2C_INT,
+};
+
+static struct i2c_adapter pnx_adapter0 = {
+	.name = I2C_CHIP_NAME "0",
+	.algo_data = &pnx_algo_data0,
+};
+static struct i2c_adapter pnx_adapter1 = {
+	.name = I2C_CHIP_NAME "1",
+	.algo_data = &pnx_algo_data1,
+};
+
+static struct i2c_adapter pnx_adapter2 = {
+	.name = "USB-I2C",
+	.algo_data = &pnx_algo_data2,
+};
+
+static struct i2c_pnx_data i2c0_data = {
+	.suspend = i2c_pnx_suspend,
+	.resume = i2c_pnx_resume,
+	.calculate_input_freq = calculate_input_freq,
+	.set_clock_run = set_clock_run,
+	.set_clock_stop = set_clock_stop,
+	.adapter = &pnx_adapter0,
+};
+
+static struct i2c_pnx_data i2c1_data = {
+	.suspend = i2c_pnx_suspend,
+	.resume = i2c_pnx_resume,
+	.calculate_input_freq = calculate_input_freq,
+	.set_clock_run = set_clock_run,
+	.set_clock_stop = set_clock_stop,
+	.adapter = &pnx_adapter1,
+};
+
+static struct i2c_pnx_data i2c2_data = {
+	.suspend = i2c_pnx_suspend,
+	.resume = i2c_pnx_resume,
+	.calculate_input_freq = calculate_input_freq,
+	.set_clock_run = set_clock_run,
+	.set_clock_stop = set_clock_stop,
+	.adapter = &pnx_adapter2,
+};
+
+static struct platform_device i2c0_device = {
+	.name = "pnx-i2c",
+	.id = 0,
+	.dev = {
+		.platform_data = &i2c0_data,
+	},
+};
+
+static struct platform_device i2c1_device = {
+	.name = "pnx-i2c",
+	.id = 1,
+	.dev = {
+		.platform_data = &i2c1_data,
+	},
+};
+
+static struct platform_device i2c2_device = {
+	.name = "pnx-i2c",
+	.id = 2,
+	.dev = {
+		.platform_data = &i2c2_data,
+	},
+};
+
+static struct platform_device *devices[] __initdata = {
+	&i2c0_device,
+	&i2c1_device,
+	&i2c2_device,
+};
+
+void __init pnx4008_register_i2c_devices(void)
+{
+	platform_add_devices(devices, ARRAY_SIZE(devices));
+}

arch/arm/mach-realview/core.c

@@ -141,6 +141,19 @@ struct platform_device realview_smc91x_device = {
 	.resource	= realview_smc91x_resources,
 };
 
+static struct resource realview_i2c_resource = {
+	.start		= REALVIEW_I2C_BASE,
+	.end		= REALVIEW_I2C_BASE + SZ_4K - 1,
+	.flags		= IORESOURCE_MEM,
+};
+
+struct platform_device realview_i2c_device = {
+	.name		= "versatile-i2c",
+	.id		= -1,
+	.num_resources	= 1,
+	.resource	= &realview_i2c_resource,
+};
+
 #define REALVIEW_SYSMCI	(__io_address(REALVIEW_SYS_BASE) + REALVIEW_SYS_MCI_OFFSET)
 
 static unsigned int realview_mmc_status(struct device *dev)

arch/arm/mach-realview/core.h

@@ -108,6 +108,7 @@ static struct amba_device name##_device = {			\
 
 extern struct platform_device realview_flash_device;
 extern struct platform_device realview_smc91x_device;
+extern struct platform_device realview_i2c_device;
 extern struct mmc_platform_data realview_mmc0_plat_data;
 extern struct mmc_platform_data realview_mmc1_plat_data;
 extern struct clk realview_clcd_clk;

arch/arm/mach-realview/realview_eb.c

@@ -155,6 +155,7 @@ static void __init realview_eb_init(void)
 
 	platform_device_register(&realview_flash_device);
 	platform_device_register(&realview_smc91x_device);
+	platform_device_register(&realview_i2c_device);
 
 	for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {
 		struct amba_device *d = amba_devs[i];

arch/arm/mach-versatile/core.c

@@ -325,6 +325,19 @@ static struct platform_device smc91x_device = {
 	.resource	= smc91x_resources,
 };
 
+static struct resource versatile_i2c_resource = {
+	.start			= VERSATILE_I2C_BASE,
+	.end			= VERSATILE_I2C_BASE + SZ_4K - 1,
+	.flags			= IORESOURCE_MEM,
+};
+
+static struct platform_device versatile_i2c_device = {
+	.name			= "versatile-i2c",
+	.id			= -1,
+	.num_resources		= 1,
+	.resource		= &versatile_i2c_resource,
+};
+
 #define VERSATILE_SYSMCI	(__io_address(VERSATILE_SYS_BASE) + VERSATILE_SYS_MCI_OFFSET)
 
 unsigned int mmc_status(struct device *dev)
@@ -775,6 +788,7 @@ void __init versatile_init(void)
 	clk_register(&versatile_clcd_clk);
 
 	platform_device_register(&versatile_flash_device);
+	platform_device_register(&versatile_i2c_device);
 	platform_device_register(&smc91x_device);
 
 	for (i = 0; i < ARRAY_SIZE(amba_devs); i++) {

drivers/acorn/char/i2c.c

@@ -360,7 +360,7 @@ static int __init i2c_ioc_init(void)
 	if (ret >= 0){
 		ret = misc_register(&rtc_dev);
 		if(ret < 0)
-			i2c_bit_del_bus(&ioc_ops);
+			i2c_del_adapter(&ioc_ops);
 	}
 
 	return ret;

drivers/i2c/algos/Kconfig

@@ -38,17 +38,6 @@ config I2C_ALGOPCA
 	  This support is also available as a module.  If so, the module 
 	  will be called i2c-algo-pca.
 
-config I2C_ALGOITE
-	tristate "ITE I2C Algorithm"
-	depends on MIPS_ITE8172 && I2C
-	help
-	  This supports the use of the ITE8172 I2C interface found on some MIPS
-	  systems. Say Y if you have one of these. You should also say Y for
-	  the ITE I2C peripheral driver support below.
-
-	  This support is also available as a module.  If so, the module 
-	  will be called i2c-algo-ite.
-
 config I2C_ALGO8XX
 	tristate "MPC8xx CPM I2C interface"
 	depends on 8xx && I2C

drivers/i2c/algos/Makefile

@@ -5,7 +5,6 @@
 obj-$(CONFIG_I2C_ALGOBIT)	+= i2c-algo-bit.o
 obj-$(CONFIG_I2C_ALGOPCF)	+= i2c-algo-pcf.o
 obj-$(CONFIG_I2C_ALGOPCA)	+= i2c-algo-pca.o
-obj-$(CONFIG_I2C_ALGOITE)	+= i2c-algo-ite.o
 obj-$(CONFIG_I2C_ALGO_SGI)	+= i2c-algo-sgi.o
 
 ifeq ($(CONFIG_I2C_DEBUG_ALGO),y)

drivers/i2c/algos/i2c-algo-bit.c

@@ -540,15 +540,7 @@ int i2c_bit_add_bus(struct i2c_adapter *adap)
 
 	return i2c_add_adapter(adap);
 }
-
-
-int i2c_bit_del_bus(struct i2c_adapter *adap)
-{
-	return i2c_del_adapter(adap);
-}
-
 EXPORT_SYMBOL(i2c_bit_add_bus);
-EXPORT_SYMBOL(i2c_bit_del_bus);
 
 MODULE_AUTHOR("Simon G. Vogl <simon@tk.uni-linz.ac.at>");
 MODULE_DESCRIPTION("I2C-Bus bit-banging algorithm");

drivers/i2c/algos/i2c-algo-ite.h

-/*
-   --------------------------------------------------------------------
-   i2c-ite.h: Global defines for the I2C controller on board the    
-                 ITE MIPS processor.                                
-   --------------------------------------------------------------------
-   Hai-Pao Fan, MontaVista Software, Inc.
-   hpfan@mvista.com or source@mvista.com
-
-   Copyright 2001 MontaVista Software Inc.
-
- *  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  SOFTWARE  IS PROVIDED   ``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 AUTHOR  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.
- *
- *  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.
-
- */
-
-#ifndef I2C_ITE_H
-#define I2C_ITE_H 1
-
-#include <asm/it8172/it8172.h>
-
-/* I2C Registers */
-#define ITE_I2CHCR	IT8172_PCI_IO_BASE + IT_I2C_BASE + 0x30
-#define ITE_I2CHSR	IT8172_PCI_IO_BASE + IT_I2C_BASE + 0x34
-#define ITE_I2CSAR	IT8172_PCI_IO_BASE + IT_I2C_BASE + 0x38
-#define ITE_I2CSSAR	IT8172_PCI_IO_BASE + IT_I2C_BASE + 0x3c
-#define ITE_I2CCKCNT	IT8172_PCI_IO_BASE + IT_I2C_BASE + 0x48
-#define ITE_I2CSHDR	IT8172_PCI_IO_BASE + IT_I2C_BASE + 0x4c
-#define ITE_I2CRSUR	IT8172_PCI_IO_BASE + IT_I2C_BASE + 0x50
-#define ITE_I2CPSUR	IT8172_PCI_IO_BASE + IT_I2C_BASE + 0x54
-
-#define ITE_I2CFDR	IT8172_PCI_IO_BASE + IT_I2C_BASE + 0x70
-#define ITE_I2CFBCR	IT8172_PCI_IO_BASE + IT_I2C_BASE + 0x74
-#define ITE_I2CFCR	IT8172_PCI_IO_BASE + IT_I2C_BASE + 0x78
-#define ITE_I2CFSR	IT8172_PCI_IO_BASE + IT_I2C_BASE + 0x7c
-
-
-/* Host Control Register ITE_I2CHCR */
-#define	ITE_I2CHCR_HCE	0x01	/* Enable I2C Host Controller */
-#define	ITE_I2CHCR_IE	0x02	/* Enable the interrupt after completing
-				   the current transaction */
-#define ITE_I2CHCR_CP_W	0x00	/* bit2-4 000 - Write */
-#define	ITE_I2CHCR_CP_R	0x08	/*	  010 - Current address read */
-#define	ITE_I2CHCR_CP_S	0x10	/*	  100 - Sequential read */
-#define ITE_I2CHCR_ST	0x20	/* Initiates the I2C host controller to execute
-				   the command and send the data programmed in
-				   all required registers to I2C bus */
-#define ITE_CMD		ITE_I2CHCR_HCE | ITE_I2CHCR_IE | ITE_I2CHCR_ST
-#define ITE_WRITE	ITE_CMD | ITE_I2CHCR_CP_W
-#define ITE_READ	ITE_CMD | ITE_I2CHCR_CP_R
-#define ITE_SREAD	ITE_CMD | ITE_I2CHCR_CP_S
-
-/* Host Status Register ITE_I2CHSR */
-#define	ITE_I2CHSR_DB	0x01	/* Device is busy, receives NACK response except
-				   in the first and last bytes */
-#define	ITE_I2CHSR_DNE	0x02	/* Target address on I2C bus does not exist */
-#define	ITE_I2CHSR_TDI	0x04	/* R/W Transaction on I2C bus was completed */
-#define	ITE_I2CHSR_HB	0x08	/* Host controller is processing transactions */
-#define	ITE_I2CHSR_FER	0x10	/* Error occurs in the FIFO */
-
-/* Slave Address Register ITE_I2CSAR */
-#define	ITE_I2CSAR_SA_MASK	0xfe	/* Target I2C device address */
-#define	ITE_I2CSAR_ASO		0x0100	/* Output 1/0 to I2CAS port when the
-					   next slave address is addressed */
-
-/* Slave Sub-address Register ITE_I2CSSAR */
-#define	ITE_I2CSSAR_SUBA_MASK	0xff	/* Target I2C device sub-address */
-
-/* Clock Counter Register ITE_I2CCKCNT */
-#define	ITE_I2CCKCNT_STOP	0x00	/* stop I2C clock */
-#define	ITE_I2CCKCNT_HPCC_MASK	0x7f	/* SCL high period counter */
-#define	ITE_I2CCKCNT_LPCC_MASK	0x7f00	/* SCL low period counter */
-
-/* START Hold Time Register ITE_I2CSHDR */
-/* value is counted based on 16 MHz internal clock */
-#define ITE_I2CSHDR_FM	0x0a	/* START condition at fast mode */
-#define	ITE_I2CSHDR_SM	0x47	/* START contition at standard mode */
-
-/* (Repeated) START Setup Time Register ITE_I2CRSUR */
-/* value is counted based on 16 MHz internal clock */
-#define	ITE_I2CRSUR_FM	0x0a	/* repeated START condition at fast mode */
-#define	ITE_I2CRSUR_SM	0x50	/* repeated START condition at standard mode */
-
-/* STOP setup Time Register ITE_I2CPSUR */
-
-/* FIFO Data Register ITE_I2CFDR */
-#define	ITE_I2CFDR_MASK		0xff
-
-/* FIFO Byte Count Register ITE_I2CFBCR */
-#define ITE_I2CFBCR_MASK	0x3f
-
-/* FIFO Control Register ITE_I2CFCR */
-#define	ITE_I2CFCR_FLUSH	0x01	/* Flush FIFO and reset the FIFO point
-					   and I2CFSR */
-/* FIFO Status Register ITE_I2CFSR */
-#define	ITE_I2CFSR_FO	0x01	/* FIFO is overrun when write */
-#define	ITE_I2CFSR_FU	0x02	/* FIFO is underrun when read */
-#define	ITE_I2CFSR_FF	0x04	/* FIFO is full when write */
-#define	ITE_I2CFSR_FE	0x08	/* FIFO is empty when read */
-
-#endif  /* I2C_ITE_H */

drivers/i2c/algos/i2c-algo-pca.c

@@ -381,14 +381,7 @@ int i2c_pca_add_bus(struct i2c_adapter *adap)
 
 	return rval;
 }
-
-int i2c_pca_del_bus(struct i2c_adapter *adap)
-{
-	return i2c_del_adapter(adap);
-}
-
 EXPORT_SYMBOL(i2c_pca_add_bus);
-EXPORT_SYMBOL(i2c_pca_del_bus);
 
 MODULE_AUTHOR("Ian Campbell <icampbell@arcom.com>");
 MODULE_DESCRIPTION("I2C-Bus PCA9564 algorithm");

drivers/i2c/algos/i2c-algo-pcf.c

@@ -486,15 +486,7 @@ int i2c_pcf_add_bus(struct i2c_adapter *adap)
 
 	return rval;
 }
-
-
-int i2c_pcf_del_bus(struct i2c_adapter *adap)
-{
-	return i2c_del_adapter(adap);
-}
-
 EXPORT_SYMBOL(i2c_pcf_add_bus);
-EXPORT_SYMBOL(i2c_pcf_del_bus);
 
 MODULE_AUTHOR("Hans Berglund <hb@spacetec.no>");
 MODULE_DESCRIPTION("I2C-Bus PCF8584 algorithm");

drivers/i2c/algos/i2c-algo-sgi.c

@@ -171,15 +171,7 @@ int i2c_sgi_add_bus(struct i2c_adapter *adap)
 
 	return i2c_add_adapter(adap);
 }
-
-
-int i2c_sgi_del_bus(struct i2c_adapter *adap)
-{
-	return i2c_del_adapter(adap);
-}
-
 EXPORT_SYMBOL(i2c_sgi_add_bus);
-EXPORT_SYMBOL(i2c_sgi_del_bus);
 
 MODULE_AUTHOR("Ladislav Michl <ladis@linux-mips.org>");
 MODULE_DESCRIPTION("I2C-Bus SGI algorithm");

drivers/i2c/busses/Kconfig

@@ -74,6 +74,13 @@ config I2C_AMD8111
 	  This driver can also be built as a module.  If so, the module
 	  will be called i2c-amd8111.
 
+config I2C_AT91
+	tristate "Atmel AT91 I2C Two-Wire interface (TWI)"
+	depends on I2C && ARCH_AT91 && EXPERIMENTAL
+	help
+	  This supports the use of the I2C interface on Atmel AT91
+	  processors.
+
 config I2C_AU1550
 	tristate "Au1550/Au1200 SMBus interface"
 	depends on I2C && (SOC_AU1550 || SOC_AU1200)
@@ -209,18 +216,6 @@ config I2C_ISA
 	tristate
 	depends on I2C
 
-config I2C_ITE
-	tristate "ITE I2C Adapter"
-	depends on I2C && MIPS_ITE8172
-	select I2C_ALGOITE
-	help
-	  This supports the ITE8172 I2C peripheral found on some MIPS
-	  systems. Say Y if you have one of these. You should also say Y for
-	  the ITE I2C driver algorithm support above.
-
-	  This support is also available as a module.  If so, the module 
-	  will be called i2c-ite.
-
 config I2C_IXP4XX
 	tristate "IXP4xx GPIO-Based I2C Interface"
 	depends on I2C && ARCH_IXP4XX
@@ -481,6 +476,17 @@ config I2C_STUB
 
 	  If you don't know what to do here, definitely say N.
 
+config I2C_VERSATILE
+	tristate "ARM Versatile/Realview I2C bus support"
+	depends on I2C && (ARCH_VERSATILE || ARCH_REALVIEW)
+	select I2C_ALGOBIT
+	help
+	  Say yes if you want to support the I2C serial bus on ARMs Versatile
+	  range of platforms.
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called i2c-versatile.
+
 config I2C_VIA
 	tristate "VIA 82C586B"
 	depends on I2C && PCI && EXPERIMENTAL
@@ -548,4 +554,23 @@ config I2C_MV64XXX
 	  This driver can also be built as a module.  If so, the module
 	  will be called i2c-mv64xxx.
 
+config I2C_PNX
+	tristate "I2C bus support for Philips PNX targets"
+	depends on ARCH_PNX4008 && I2C
+	help
+	  This driver supports the Philips IP3204 I2C IP block master and/or
+	  slave controller
+
+	  This driver can also be built as a module.  If so, the module
+	  will be called i2c-pnx.
+
+config I2C_PNX_EARLY
+	bool "Early initialization for I2C on PNXxxxx"
+	depends on I2C_PNX=y
+	help
+	  Under certain circumstances one may need to make sure I2C on PNXxxxx
+	  is initialized earlier than some other driver that depends on it
+	  (for instance, that might be USB in case of PNX4008). With this
+	  option turned on you can guarantee that.
+
 endmenu

drivers/i2c/busses/Makefile

@@ -8,6 +8,7 @@ obj-$(CONFIG_I2C_ALI15X3)	+= i2c-ali15x3.o
 obj-$(CONFIG_I2C_AMD756)	+= i2c-amd756.o
 obj-$(CONFIG_I2C_AMD756_S4882)	+= i2c-amd756-s4882.o
 obj-$(CONFIG_I2C_AMD8111)	+= i2c-amd8111.o
+obj-$(CONFIG_I2C_AT91)		+= i2c-at91.o
 obj-$(CONFIG_I2C_AU1550)	+= i2c-au1550.o
 obj-$(CONFIG_I2C_ELEKTOR)	+= i2c-elektor.o
 obj-$(CONFIG_I2C_HYDRA)		+= i2c-hydra.o
@@ -16,7 +17,6 @@ obj-$(CONFIG_I2C_I810)		+= i2c-i810.o
 obj-$(CONFIG_I2C_IBM_IIC)	+= i2c-ibm_iic.o
 obj-$(CONFIG_I2C_IOP3XX)	+= i2c-iop3xx.o
 obj-$(CONFIG_I2C_ISA)		+= i2c-isa.o
-obj-$(CONFIG_I2C_ITE)		+= i2c-ite.o
 obj-$(CONFIG_I2C_IXP2000)	+= i2c-ixp2000.o
 obj-$(CONFIG_I2C_IXP4XX)	+= i2c-ixp4xx.o
 obj-$(CONFIG_I2C_POWERMAC)	+= i2c-powermac.o
@@ -29,6 +29,7 @@ obj-$(CONFIG_I2C_PARPORT)	+= i2c-parport.o
 obj-$(CONFIG_I2C_PARPORT_LIGHT)	+= i2c-parport-light.o
 obj-$(CONFIG_I2C_PCA_ISA)	+= i2c-pca-isa.o
 obj-$(CONFIG_I2C_PIIX4)		+= i2c-piix4.o
+obj-$(CONFIG_I2C_PNX)		+= i2c-pnx.o
 obj-$(CONFIG_I2C_PROSAVAGE)	+= i2c-prosavage.o
 obj-$(CONFIG_I2C_PXA)		+= i2c-pxa.o
 obj-$(CONFIG_I2C_RPXLITE)	+= i2c-rpx.o
@@ -39,6 +40,7 @@ obj-$(CONFIG_I2C_SIS5595)	+= i2c-sis5595.o
 obj-$(CONFIG_I2C_SIS630)	+= i2c-sis630.o
 obj-$(CONFIG_I2C_SIS96X)	+= i2c-sis96x.o
 obj-$(CONFIG_I2C_STUB)		+= i2c-stub.o
+obj-$(CONFIG_I2C_VERSATILE)	+= i2c-versatile.o
 obj-$(CONFIG_I2C_VIA)		+= i2c-via.o
 obj-$(CONFIG_I2C_VIAPRO)	+= i2c-viapro.o
 obj-$(CONFIG_I2C_VOODOO3)	+= i2c-voodoo3.o

drivers/i2c/busses/i2c-at91.c

+/*
+    i2c Support for Atmel's AT91 Two-Wire Interface (TWI)
+
+    Copyright (C) 2004 Rick Bronson
+    Converted to 2.6 by Andrew Victor <andrew@sanpeople.com>
+
+    Borrowed heavily from original work by:
+    Copyright (C) 2000 Philip Edelbrock <phil@stimpy.netroedge.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.
+*/
+
+#include <linux/module.h>
+#include <linux/version.h>
+#include <linux/kernel.h>
+#include <linux/slab.h>
+#include <linux/pci.h>
+#include <linux/types.h>
+#include <linux/delay.h>
+#include <linux/i2c.h>
+#include <linux/init.h>
+#include <linux/clk.h>
+#include <linux/platform_device.h>
+
+#include <asm/io.h>
+
+#include <asm/arch/at91_twi.h>
+#include <asm/arch/board.h>
+#include <asm/arch/cpu.h>
+
+#define TWI_CLOCK		100000		/* Hz. max 400 Kbits/sec */
+
+
+static struct clk *twi_clk;
+static void __iomem *twi_base;
+
+#define at91_twi_read(reg)		__raw_readl(twi_base + (reg))
+#define at91_twi_write(reg, val)	__raw_writel((val), twi_base + (reg))
+
+
+/*
+ * Initialize the TWI hardware registers.
+ */
+static void __devinit at91_twi_hwinit(void)
+{
+	unsigned long cdiv, ckdiv;
+
+	at91_twi_write(AT91_TWI_IDR, 0xffffffff);	/* Disable all interrupts */
+	at91_twi_write(AT91_TWI_CR, AT91_TWI_SWRST);	/* Reset peripheral */
+	at91_twi_write(AT91_TWI_CR, AT91_TWI_MSEN);	/* Set Master mode */
+
+	/* Calcuate clock dividers */
+	cdiv = (clk_get_rate(twi_clk) / (2 * TWI_CLOCK)) - 3;
+	cdiv = cdiv + 1;	/* round up */
+	ckdiv = 0;
+	while (cdiv > 255) {
+		ckdiv++;
+		cdiv = cdiv >> 1;
+	}
+
+	if (cpu_is_at91rm9200()) {			/* AT91RM9200 Errata #22 */
+		if (ckdiv > 5) {
+			printk(KERN_ERR "AT91 I2C: Invalid TWI_CLOCK value!\n");
+			ckdiv = 5;
+		}
+	}
+
+	at91_twi_write(AT91_TWI_CWGR, (ckdiv << 16) | (cdiv << 8) | cdiv);
+}
+
+/*
+ * Poll the i2c status register until the specified bit is set.
+ * Returns 0 if timed out (100 msec).
+ */
+static short at91_poll_status(unsigned long bit)
+{
+	int loop_cntr = 10000;
+
+	do {
+		udelay(10);
+	} while (!(at91_twi_read(AT91_TWI_SR) & bit) && (--loop_cntr > 0));
+
+	return (loop_cntr > 0);
+}
+
+static int xfer_read(struct i2c_adapter *adap, unsigned char *buf, int length)
+{
+	/* Send Start */
+	at91_twi_write(AT91_TWI_CR, AT91_TWI_START);
+
+	/* Read data */
+	while (length--) {
+		if (!length)	/* need to send Stop before reading last byte */
+			at91_twi_write(AT91_TWI_CR, AT91_TWI_STOP);
+		if (!at91_poll_status(AT91_TWI_RXRDY)) {
+			dev_dbg(&adap->dev, "RXRDY timeout\n");
+			return -ETIMEDOUT;
+		}
+		*buf++ = (at91_twi_read(AT91_TWI_RHR) & 0xff);
+	}
+
+	return 0;
+}
+
+static int xfer_write(struct i2c_adapter *adap, unsigned char *buf, int length)
+{
+	/* Load first byte into transmitter */
+	at91_twi_write(AT91_TWI_THR, *buf++);
+
+	/* Send Start */
+	at91_twi_write(AT91_TWI_CR, AT91_TWI_START);
+
+	do {
+		if (!at91_poll_status(AT91_TWI_TXRDY)) {
+			dev_dbg(&adap->dev, "TXRDY timeout\n");
+			return -ETIMEDOUT;
+		}
+
+		length--;	/* byte was transmitted */
+
+		if (length > 0)		/* more data to send? */
+			at91_twi_write(AT91_TWI_THR, *buf++);
+	} while (length);
+
+	/* Send Stop */
+	at91_twi_write(AT91_TWI_CR, AT91_TWI_STOP);
+
+	return 0;
+}
+
+/*
+ * Generic i2c master transfer entrypoint.
+ *
+ * Note: We do not use Atmel's feature of storing the "internal device address".
+ * Instead the "internal device address" has to be written using a seperate
+ * i2c message.
+ * http://lists.arm.linux.org.uk/pipermail/linux-arm-kernel/2004-September/024411.html
+ */
+static int at91_xfer(struct i2c_adapter *adap, struct i2c_msg *pmsg, int num)
+{
+	int i, ret;
+
+	dev_dbg(&adap->dev, "at91_xfer: processing %d messages:\n", num);
+
+	for (i = 0; i < num; i++) {
+		dev_dbg(&adap->dev, " #%d: %sing %d byte%s %s 0x%02x\n", i,
+			pmsg->flags & I2C_M_RD ? "read" : "writ",
+			pmsg->len, pmsg->len > 1 ? "s" : "",
+			pmsg->flags & I2C_M_RD ? "from" : "to",	pmsg->addr);
+
+		at91_twi_write(AT91_TWI_MMR, (pmsg->addr << 16)
+			| ((pmsg->flags & I2C_M_RD) ? AT91_TWI_MREAD : 0));
+
+		if (pmsg->len && pmsg->buf) {	/* sanity check */
+			if (pmsg->flags & I2C_M_RD)
+				ret = xfer_read(adap, pmsg->buf, pmsg->len);
+			else
+				ret = xfer_write(adap, pmsg->buf, pmsg->len);
+
+			if (ret)
+				return ret;
+
+			/* Wait until transfer is finished */
+			if (!at91_poll_status(AT91_TWI_TXCOMP)) {
+				dev_dbg(&adap->dev, "TXCOMP timeout\n");
+				return -ETIMEDOUT;
+			}
+		}
+		dev_dbg(&adap->dev, "transfer complete\n");
+		pmsg++;		/* next message */
+	}
+	return i;
+}
+
+/*
+ * Return list of supported functionality.
+ */
+static u32 at91_func(struct i2c_adapter *adapter)
+{
+	return I2C_FUNC_I2C | I2C_FUNC_SMBUS_EMUL;
+}
+
+static struct i2c_algorithm at91_algorithm = {
+	.master_xfer	= at91_xfer,
+	.functionality	= at91_func,
+};
+
+/*
+ * Main initialization routine.
+ */
+static int __devinit at91_i2c_probe(struct platform_device *pdev)
+{
+	struct i2c_adapter *adapter;
+	struct resource *res;
+	int rc;
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	if (!res)
+		return -ENXIO;
+
+	if (!request_mem_region(res->start, res->end - res->start + 1, "at91_i2c"))
+		return -EBUSY;
+
+	twi_base = ioremap(res->start, res->end - res->start + 1);
+	if (!twi_base) {
+		rc = -ENOMEM;
+		goto fail0;
+	}
+
+	twi_clk = clk_get(NULL, "twi_clk");
+	if (IS_ERR(twi_clk)) {
+		dev_err(&pdev->dev, "no clock defined\n");
+		rc = -ENODEV;
+		goto fail1;
+	}
+
+	adapter = kzalloc(sizeof(struct i2c_adapter), GFP_KERNEL);
+	if (adapter == NULL) {
+		dev_err(&pdev->dev, "can't allocate inteface!\n");
+		rc = -ENOMEM;
+		goto fail2;
+	}
+	sprintf(adapter->name, "AT91");
+	adapter->algo = &at91_algorithm;
+	adapter->class = I2C_CLASS_HWMON;
+	adapter->dev.parent = &pdev->dev;
+
+	platform_set_drvdata(pdev, adapter);
+
+	clk_enable(twi_clk);		/* enable peripheral clock */
+	at91_twi_hwinit();		/* initialize TWI controller */
+
+	rc = i2c_add_adapter(adapter);
+	if (rc) {
+		dev_err(&pdev->dev, "Adapter %s registration failed\n",
+				adapter->name);
+		goto fail3;
+	}
+
+	dev_info(&pdev->dev, "AT91 i2c bus driver.\n");
+	return 0;
+
+fail3:
+	platform_set_drvdata(pdev, NULL);
+	kfree(adapter);
+	clk_disable(twi_clk);
+fail2:
+	clk_put(twi_clk);
+fail1:
+	iounmap(twi_base);
+fail0:
+	release_mem_region(res->start, res->end - res->start + 1);
+
+	return rc;
+}
+
+static int __devexit at91_i2c_remove(struct platform_device *pdev)
+{
+	struct i2c_adapter *adapter = platform_get_drvdata(pdev);
+	struct resource *res;
+	int rc;
+
+	rc = i2c_del_adapter(adapter);
+	platform_set_drvdata(pdev, NULL);
+
+	res = platform_get_resource(pdev, IORESOURCE_MEM, 0);
+	iounmap(twi_base);
+	release_mem_region(res->start, res->end - res->start + 1);
+
+	clk_disable(twi_clk);		/* disable peripheral clock */
+	clk_put(twi_clk);
+
+	return rc;
+}
+
+#ifdef CONFIG_PM
+
+/* NOTE: could save a few mA by keeping clock off outside of at91_xfer... */
+
+static int at91_i2c_suspend(struct platform_device *pdev, pm_message_t mesg)
+{
+	clk_disable(twi_clk);
+	return 0;
+}
+
+static int at91_i2c_resume(struct platform_device *pdev)
+{
+	return clk_enable(twi_clk);
+}
+
+#else
+#define at91_i2c_suspend	NULL
+#define at91_i2c_resume		NULL
+#endif
+
+static struct platform_driver at91_i2c_driver = {
+	.probe		= at91_i2c_probe,
+	.remove		= __devexit_p(at91_i2c_remove),
+	.suspend	= at91_i2c_suspend,
+	.resume		= at91_i2c_resume,
+	.driver		= {
+		.name	= "at91_i2c",
+		.owner	= THIS_MODULE,
+	},
+};
+
+static int __init at91_i2c_init(void)
+{
+	return platform_driver_register(&at91_i2c_driver);
+}
+
+static void __exit at91_i2c_exit(void)
+{
+	platform_driver_unregister(&at91_i2c_driver);
+}
+
+module_init(at91_i2c_init);
+module_exit(at91_i2c_exit);
+
+MODULE_AUTHOR("Rick Bronson");
+MODULE_DESCRIPTION("I2C (TWI) driver for Atmel AT91");
+MODULE_LICENSE("GPL");

drivers/i2c/busses/i2c-elektor.c

@@ -293,7 +293,7 @@ static int __init i2c_pcfisa_init(void)
 
 static void i2c_pcfisa_exit(void)
 {
-	i2c_pcf_del_bus(&pcf_isa_ops);
+	i2c_del_adapter(&pcf_isa_ops);
 
 	if (irq > 0) {
 		disable_irq(irq);

drivers/i2c/busses/i2c-hydra.c

@@ -146,7 +146,7 @@ static int __devinit hydra_probe(struct pci_dev *dev,
 static void __devexit hydra_remove(struct pci_dev *dev)
 {
 	pdregw(hydra_bit_data.data, 0);		/* clear SCLK_OE and SDAT_OE */
-	i2c_bit_del_bus(&hydra_adap);
+	i2c_del_adapter(&hydra_adap);
 	iounmap(hydra_bit_data.data);
 	release_mem_region(pci_resource_start(dev, 0)+
 			   offsetof(struct Hydra, CachePD), 4);

drivers/i2c/busses/i2c-i801.c

@@ -470,12 +470,20 @@ static int __devinit i801_probe(struct pci_dev *dev, const struct pci_device_id
 	int err;
 
 	I801_dev = dev;
-	if ((dev->device == PCI_DEVICE_ID_INTEL_82801DB_3) ||
-	    (dev->device == PCI_DEVICE_ID_INTEL_82801EB_3) ||
-	    (dev->device == PCI_DEVICE_ID_INTEL_ESB_4))
+	switch (dev->device) {
+	case PCI_DEVICE_ID_INTEL_82801DB_3:
+	case PCI_DEVICE_ID_INTEL_82801EB_3:
+	case PCI_DEVICE_ID_INTEL_ESB_4:
+	case PCI_DEVICE_ID_INTEL_ICH6_16:
+	case PCI_DEVICE_ID_INTEL_ICH7_17:
+	case PCI_DEVICE_ID_INTEL_ESB2_17:
+	case PCI_DEVICE_ID_INTEL_ICH8_5:
+	case PCI_DEVICE_ID_INTEL_ICH9_6:
 		isich4 = 1;
-	else
+		break;
+	default:
 		isich4 = 0;
+	}
 
 	err = pci_enable_device(dev);
 	if (err) {

drivers/i2c/busses/i2c-i810.c

@@ -219,14 +219,14 @@ static int __devinit i810_probe(struct pci_dev *dev, const struct pci_device_id
 		return retval;
 	retval = i2c_bit_add_bus(&i810_ddc_adapter);
 	if (retval)
-		i2c_bit_del_bus(&i810_i2c_adapter);
+		i2c_del_adapter(&i810_i2c_adapter);
 	return retval;
 }
 
 static void __devexit i810_remove(struct pci_dev *dev)
 {
-	i2c_bit_del_bus(&i810_ddc_adapter);
-	i2c_bit_del_bus(&i810_i2c_adapter);
+	i2c_del_adapter(&i810_ddc_adapter);
+	i2c_del_adapter(&i810_i2c_adapter);
 	iounmap(ioaddr);
 }
 

drivers/i2c/busses/i2c-ibm_iic.c

@@ -680,6 +680,12 @@ static int __devinit iic_probe(struct ocp_device *ocp){
 	dev->idx = ocp->def->index;
 	ocp_set_drvdata(ocp, dev);
 	
+	if (!request_mem_region(ocp->def->paddr, sizeof(struct iic_regs),
+				"ibm_iic")) {
+		ret = -EBUSY;
+		goto fail1;
+	}
+
 	if (!(dev->vaddr = ioremap(ocp->def->paddr, sizeof(struct iic_regs)))){
 		printk(KERN_CRIT "ibm-iic%d: failed to ioremap device registers\n",
 			dev->idx);
@@ -750,6 +756,8 @@ static int __devinit iic_probe(struct ocp_device *ocp){
 
 	iounmap(dev->vaddr);
 fail2:	
+	release_mem_region(ocp->def->paddr, sizeof(struct iic_regs));
+fail1:
 	ocp_set_drvdata(ocp, NULL);
 	kfree(dev);	
 	return ret;
@@ -777,6 +785,7 @@ static void __devexit iic_remove(struct ocp_device *ocp)
 		    free_irq(dev->irq, dev);
 		}
 		iounmap(dev->vaddr);
+		release_mem_region(ocp->def->paddr, sizeof(struct iic_regs));
 		kfree(dev);
 	}
 }

drivers/i2c/busses/i2c-ite.c

-/*
-   -------------------------------------------------------------------------
-   i2c-adap-ite.c i2c-hw access for the IIC peripheral on the ITE MIPS system
-   -------------------------------------------------------------------------
-   Hai-Pao Fan, MontaVista Software, Inc.
-   hpfan@mvista.com or source@mvista.com
-
-   Copyright 2001 MontaVista Software Inc.
-
-   ----------------------------------------------------------------------------
-   This file was highly leveraged from i2c-elektor.c, which was created
-   by Simon G. Vogl and Hans Berglund:
-
- 
-     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 Kysti Mlkki <kmalkki@cc.hut.fi> and even
-   Frodo Looijaard <frodol@dds.nl> */
-
-#include <linux/kernel.h>
-#include <linux/ioport.h>
-#include <linux/module.h>
-#include <linux/delay.h>
-#include <linux/slab.h>
-#include <linux/init.h>
-#include <linux/wait.h>
-#include <asm/irq.h>
-#include <asm/io.h>
-
-#include <linux/i2c.h>
-#include <linux/i2c-algo-ite.h>
-#include <linux/i2c-adap-ite.h>
-#include "../i2c-ite.h"
-
-#define DEFAULT_BASE  0x14014030
-#define ITE_IIC_IO_SIZE	0x40
-#define DEFAULT_IRQ   0
-#define DEFAULT_CLOCK 0x1b0e	/* default 16MHz/(27+14) = 400KHz */
-#define DEFAULT_OWN   0x55
-
-static int base;
-static int irq;
-static int clock;
-static int own;
-
-static struct iic_ite gpi;
-static wait_queue_head_t iic_wait;
-static int iic_pending;
-static spinlock_t lock;
-
-/* ----- local functions ----------------------------------------------	*/
-
-static void iic_ite_setiic(void *data, int ctl, short val)
-{
-        unsigned long j = jiffies + 10;
-
-	pr_debug(" Write 0x%02x to 0x%x\n",(unsigned short)val, ctl&0xff);
-#ifdef DEBUG
-	while (time_before(jiffies, j))
-		schedule();
-#endif
-	outw(val,ctl);
-}
-
-static short iic_ite_getiic(void *data, int ctl)
-{
-	short val;
-
-	val = inw(ctl);
-	pr_debug("Read 0x%02x from 0x%x\n",(unsigned short)val, ctl&0xff);
-	return (val);
-}
-
-/* Return our slave address.  This is the address
- * put on the I2C bus when another master on the bus wants to address us
- * as a slave
- */
-static int iic_ite_getown(void *data)
-{
-	return (gpi.iic_own);
-}
-
-
-static int iic_ite_getclock(void *data)
-{
-	return (gpi.iic_clock);
-}
-
-
-/* Put this process to sleep.  We will wake up when the
- * IIC controller interrupts.
- */
-static void iic_ite_waitforpin(void) {
-   DEFINE_WAIT(wait);
-   int timeout = 2;
-   unsigned long flags;
-
-   /* If interrupts are enabled (which they are), then put the process to
-    * sleep.  This process will be awakened by two events -- either the
-    * the IIC peripheral interrupts or the timeout expires. 
-    * If interrupts are not enabled then delay for a reasonable amount 
-    * of time and return.
-    */
-   if (gpi.iic_irq > 0) {
-	spin_lock_irqsave(&lock, flags);
-	if (iic_pending == 0) {
-		spin_unlock_irqrestore(&lock, flags);
-		prepare_to_wait(&iic_wait, &wait, TASK_INTERRUPTIBLE);
-		if (schedule_timeout(timeout*HZ)) {
-			spin_lock_irqsave(&lock, flags);
-			if (iic_pending == 1) {
-				iic_pending = 0;
-			}
-			spin_unlock_irqrestore(&lock, flags);
-		}
-		finish_wait(&iic_wait, &wait);
-	} else {
-		iic_pending = 0;
-		spin_unlock_irqrestore(&lock, flags);
-	}
-   } else {
-      udelay(100);
-   }
-}
-
-
-static irqreturn_t iic_ite_handler(int this_irq, void *dev_id)
-{
-	spin_lock(&lock);
-	iic_pending = 1;
-	spin_unlock(&lock);
-
-	wake_up_interruptible(&iic_wait);
-
-	return IRQ_HANDLED;
-}
-
-
-/* Lock the region of memory where I/O registers exist.  Request our
- * interrupt line and register its associated handler.
- */
-static int iic_hw_resrc_init(void)
-{
-	if (!request_region(gpi.iic_base, ITE_IIC_IO_SIZE, "i2c"))
-		return -ENODEV;
-  
-	if (gpi.iic_irq <= 0)
-		return 0;
-
-	if (request_irq(gpi.iic_irq, iic_ite_handler, 0, "ITE IIC", 0) < 0)
-		gpi.iic_irq = 0;
-	else
-		enable_irq(gpi.iic_irq);
-
-	return 0;
-}
-
-
-static void iic_ite_release(void)
-{
-	if (gpi.iic_irq > 0) {
-		disable_irq(gpi.iic_irq);
-		free_irq(gpi.iic_irq, 0);
-	}
-	release_region(gpi.iic_base , 2);
-}
-
-/* ------------------------------------------------------------------------
- * Encapsulate the above functions in the correct operations structure.
- * This is only done when more than one hardware adapter is supported.
- */
-static struct i2c_algo_iic_data iic_ite_data = {
-	NULL,
-	iic_ite_setiic,
-	iic_ite_getiic,
-	iic_ite_getown,
-	iic_ite_getclock,
-	iic_ite_waitforpin,
-	80, 80, 100,		/*	waits, timeout */
-};
-
-static struct i2c_adapter iic_ite_ops = {
-	.owner		= THIS_MODULE,
-	.id		= I2C_HW_I_IIC,
-	.algo_data	= &iic_ite_data,
-	.name		= "ITE IIC adapter",
-};
-
-/* Called when the module is loaded.  This function starts the
- * cascade of calls up through the hierarchy of i2c modules (i.e. up to the
- *  algorithm layer and into to the core layer)
- */
-static int __init iic_ite_init(void) 
-{
-
-	struct iic_ite *piic = &gpi;
-
-	printk(KERN_INFO "Initialize ITE IIC adapter module\n");
-	if (base == 0)
-		piic->iic_base = DEFAULT_BASE;
-	else
-		piic->iic_base = base;
-
-	if (irq == 0)
-		piic->iic_irq = DEFAULT_IRQ;
-	else
-		piic->iic_irq = irq;
-
-	if (clock == 0)
-		piic->iic_clock = DEFAULT_CLOCK;
-	else
-		piic->iic_clock = clock;
-
-	if (own == 0)
-		piic->iic_own = DEFAULT_OWN;
-	else
-		piic->iic_own = own;
-
-	iic_ite_data.data = (void *)piic;
-	init_waitqueue_head(&iic_wait);
-	spin_lock_init(&lock);
-	if (iic_hw_resrc_init() == 0) {
-		if (i2c_iic_add_bus(&iic_ite_ops) < 0)
-			return -ENODEV;
-	} else {
-		return -ENODEV;
-	}
-	printk(KERN_INFO " found device at %#x irq %d.\n", 
-		piic->iic_base, piic->iic_irq);
-	return 0;
-}
-
-
-static void iic_ite_exit(void)
-{
-	i2c_iic_del_bus(&iic_ite_ops);
-        iic_ite_release();
-}
-
-/* If modules is NOT defined when this file is compiled, then the MODULE_*
- * macros will resolve to nothing
- */
-MODULE_AUTHOR("MontaVista Software <www.mvista.com>");
-MODULE_DESCRIPTION("I2C-Bus adapter routines for ITE IIC bus adapter");
-MODULE_LICENSE("GPL");
-
-module_param(base, int, 0);
-module_param(irq, int, 0);
-module_param(clock, int, 0);
-module_param(own, int, 0);
-
-
-/* Called when module is loaded or when kernel is initialized.
- * If MODULES is defined when this file is compiled, then this function will
- * resolve to init_module (the function called when insmod is invoked for a
- * module).  Otherwise, this function is called early in the boot, when the
- * kernel is intialized.  Check out /include/init.h to see how this works.
- */
-module_init(iic_ite_init);
-
-/* Resolves to module_cleanup when MODULES is defined. */
-module_exit(iic_ite_exit); 

drivers/i2c/busses/i2c-ixp2000.c

@@ -90,7 +90,7 @@ static int ixp2000_i2c_remove(struct platform_device *plat_dev)
 
 	platform_set_drvdata(plat_dev, NULL);
 
-	i2c_bit_del_bus(&drv_data->adapter);
+	i2c_del_adapter(&drv_data->adapter);
 
 	kfree(drv_data);
 

drivers/i2c/busses/i2c-ixp4xx.c

@@ -91,7 +91,7 @@ static int ixp4xx_i2c_remove(struct platform_device *plat_dev)
 
 	platform_set_drvdata(plat_dev, NULL);
 
-	i2c_bit_del_bus(&drv_data->adapter);
+	i2c_del_adapter(&drv_data->adapter);
 
 	kfree(drv_data);
 

drivers/i2c/busses/i2c-nforce2.c

@@ -35,7 +35,7 @@
     nForce4 MCP55		0368
 
     This driver supports the 2 SMBuses that are included in the MCP of the
-    nForce2/3/4 chipsets.
+    nForce2/3/4/5xx chipsets.
 */
 
 /* Note: we assume there can only be one nForce2, with two SMBus interfaces */
@@ -52,8 +52,8 @@
 #include <asm/io.h>
 
 MODULE_LICENSE("GPL");
-MODULE_AUTHOR ("Hans-Frieder Vogt <hfvogt@arcor.de>");
-MODULE_DESCRIPTION("nForce2 SMBus driver");
+MODULE_AUTHOR ("Hans-Frieder Vogt <hfvogt@gmx.net>");
+MODULE_DESCRIPTION("nForce2/3/4/5xx SMBus driver");
 
 
 struct nforce2_smbus {
@@ -80,9 +80,6 @@ struct nforce2_smbus {
 #define NVIDIA_SMB_ADDR		(smbus->base + 0x02)	/* address */
 #define NVIDIA_SMB_CMD		(smbus->base + 0x03)	/* command */
 #define NVIDIA_SMB_DATA		(smbus->base + 0x04)	/* 32 data registers */
-#define NVIDIA_SMB_BCNT		(smbus->base + 0x24)	/* number of data bytes */
-#define NVIDIA_SMB_ALRM_A	(smbus->base + 0x25)	/* alarm address */
-#define NVIDIA_SMB_ALRM_D	(smbus->base + 0x26)	/* 2 bytes alarm data */
 
 #define NVIDIA_SMB_STS_DONE	0x80
 #define NVIDIA_SMB_STS_ALRM	0x40
@@ -95,40 +92,17 @@ struct nforce2_smbus {
 #define NVIDIA_SMB_PRTCL_BYTE			0x04
 #define NVIDIA_SMB_PRTCL_BYTE_DATA		0x06
 #define NVIDIA_SMB_PRTCL_WORD_DATA		0x08
-#define NVIDIA_SMB_PRTCL_BLOCK_DATA		0x0a
-#define NVIDIA_SMB_PRTCL_PROC_CALL		0x0c
-#define NVIDIA_SMB_PRTCL_BLOCK_PROC_CALL	0x0d
-#define NVIDIA_SMB_PRTCL_I2C_BLOCK_DATA		0x4a
 #define NVIDIA_SMB_PRTCL_PEC			0x80
 
 static struct pci_driver nforce2_driver;
 
-static s32 nforce2_access(struct i2c_adapter *adap, u16 addr,
-		       unsigned short flags, char read_write,
-		       u8 command, int size, union i2c_smbus_data *data);
-static u32 nforce2_func(struct i2c_adapter *adapter);
-
-
-static const struct i2c_algorithm smbus_algorithm = {
-	.smbus_xfer = nforce2_access,
-	.functionality = nforce2_func,
-};
-
-static struct i2c_adapter nforce2_adapter = {
-	.owner          = THIS_MODULE,
-	.class          = I2C_CLASS_HWMON,
-	.algo           = &smbus_algorithm,
-};
-
-/* Return -1 on error. See smbus.h for more information */
+/* Return -1 on error */
 static s32 nforce2_access(struct i2c_adapter * adap, u16 addr,
 		unsigned short flags, char read_write,
 		u8 command, int size, union i2c_smbus_data * data)
 {
 	struct nforce2_smbus *smbus = adap->algo_data;
 	unsigned char protocol, pec, temp;
-	unsigned char len = 0; /* to keep the compiler quiet */
-	int i;
 
 	protocol = (read_write == I2C_SMBUS_READ) ? NVIDIA_SMB_PRTCL_READ :
 		NVIDIA_SMB_PRTCL_WRITE;
@@ -163,35 +137,6 @@ static s32 nforce2_access(struct i2c_adapter * adap, u16 addr,
 			protocol |= NVIDIA_SMB_PRTCL_WORD_DATA | pec;
 			break;
 
-		case I2C_SMBUS_BLOCK_DATA:
-			outb_p(command, NVIDIA_SMB_CMD);
-			if (read_write == I2C_SMBUS_WRITE) {
-				len = min_t(u8, data->block[0], 32);
-				outb_p(len, NVIDIA_SMB_BCNT);
-				for (i = 0; i < len; i++)
-					outb_p(data->block[i + 1], NVIDIA_SMB_DATA+i);
-			}
-			protocol |= NVIDIA_SMB_PRTCL_BLOCK_DATA | pec;
-			break;
-
-		case I2C_SMBUS_I2C_BLOCK_DATA:
-			len = min_t(u8, data->block[0], 32);
-			outb_p(command, NVIDIA_SMB_CMD);
-			outb_p(len, NVIDIA_SMB_BCNT);
-			if (read_write == I2C_SMBUS_WRITE)
-				for (i = 0; i < len; i++)
-					outb_p(data->block[i + 1], NVIDIA_SMB_DATA+i);
-			protocol |= NVIDIA_SMB_PRTCL_I2C_BLOCK_DATA;
-			break;
-
-		case I2C_SMBUS_PROC_CALL:
-			dev_err(&adap->dev, "I2C_SMBUS_PROC_CALL not supported!\n");
-			return -1;
-
-		case I2C_SMBUS_BLOCK_PROC_CALL:
-			dev_err(&adap->dev, "I2C_SMBUS_BLOCK_PROC_CALL not supported!\n");
-			return -1;
-
 		default:
 			dev_err(&adap->dev, "Unsupported transaction %d\n", size);
 			return -1;
@@ -227,19 +172,8 @@ static s32 nforce2_access(struct i2c_adapter * adap, u16 addr,
 			break;
 
 		case I2C_SMBUS_WORD_DATA:
-		/* case I2C_SMBUS_PROC_CALL: not supported */
 			data->word = inb_p(NVIDIA_SMB_DATA) | (inb_p(NVIDIA_SMB_DATA+1) << 8);
 			break;
-
-		case I2C_SMBUS_BLOCK_DATA:
-		/* case I2C_SMBUS_BLOCK_PROC_CALL: not supported */
-			len = inb_p(NVIDIA_SMB_BCNT);
-			len = min_t(u8, len, 32);
-		case I2C_SMBUS_I2C_BLOCK_DATA:
-			for (i = 0; i < len; i++)
-				data->block[i+1] = inb_p(NVIDIA_SMB_DATA + i);
-			data->block[0] = len;
-			break;
 	}
 
 	return 0;
@@ -250,10 +184,14 @@ static u32 nforce2_func(struct i2c_adapter *adapter)
 {
 	/* other functionality might be possible, but is not tested */
 	return I2C_FUNC_SMBUS_QUICK | I2C_FUNC_SMBUS_BYTE |
-	    I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA /* |
-	    I2C_FUNC_SMBUS_BLOCK_DATA */;
+	    I2C_FUNC_SMBUS_BYTE_DATA | I2C_FUNC_SMBUS_WORD_DATA;
 }
 
+static struct i2c_algorithm smbus_algorithm = {
+	.smbus_xfer	= nforce2_access,
+	.functionality	= nforce2_func,
+};
+
 
 static struct pci_device_id nforce2_ids[] = {
 	{ PCI_DEVICE(PCI_VENDOR_ID_NVIDIA, PCI_DEVICE_ID_NVIDIA_NFORCE2_SMBUS) },
@@ -267,7 +205,6 @@ static struct pci_device_id nforce2_ids[] = {
 	{ 0 }
 };
 
-
 MODULE_DEVICE_TABLE (pci, nforce2_ids);
 
 
@@ -291,7 +228,7 @@ static int __devinit nforce2_probe_smb (struct pci_dev *dev, int bar,
 		}
 
 		smbus->base = iobase & PCI_BASE_ADDRESS_IO_MASK;
-		smbus->size = 8;
+		smbus->size = 64;
 	}
 	smbus->dev = dev;
 
@@ -300,7 +237,9 @@ static int __devinit nforce2_probe_smb (struct pci_dev *dev, int bar,
 			smbus->base, smbus->base+smbus->size-1, name);
 		return -1;
 	}
-	smbus->adapter = nforce2_adapter;
+	smbus->adapter.owner = THIS_MODULE;
+	smbus->adapter.class = I2C_CLASS_HWMON;
+	smbus->adapter.algo = &smbus_algorithm;
 	smbus->adapter.algo_data = smbus;
 	smbus->adapter.dev.parent = &dev->dev;
 	snprintf(smbus->adapter.name, I2C_NAME_SIZE,

drivers/i2c/busses/i2c-omap.c

@@ -231,8 +231,8 @@ static int omap_i2c_init(struct omap_i2c_dev *dev)
 		 * 13		2		1
 		 * 19.2		2		1
 		 */
-		if (fclk_rate > 16000000)
-			psc = (fclk_rate + 8000000) / 12000000;
+		if (fclk_rate > 12000000)
+			psc = fclk_rate / 12000000;
 	}
 
 	/* Setup clock prescaler to obtain approx 12MHz I2C module clock: */

drivers/i2c/busses/i2c-parport-light.c

@@ -163,7 +163,7 @@ static void __exit i2c_parport_exit(void)
 	if (adapter_parm[type].init.val)
 		line_set(0, &adapter_parm[type].init);
 
-	i2c_bit_del_bus(&parport_adapter);
+	i2c_del_adapter(&parport_adapter);
 	release_region(base, 3);
 }
 

drivers/i2c/busses/i2c-parport.c

@@ -218,7 +218,7 @@ static void i2c_parport_detach (struct parport *port)
 			if (adapter_parm[type].init.val)
 				line_set(port, 0, &adapter_parm[type].init);
 				
-			i2c_bit_del_bus(&adapter->adapter);
+			i2c_del_adapter(&adapter->adapter);
 			parport_unregister_device(adapter->pdev);
 			if (prev)
 				prev->next = adapter->next;

drivers/i2c/busses/i2c-pca-isa.c

@@ -156,7 +156,7 @@ static int __init pca_isa_init(void)
 
 static void pca_isa_exit(void)
 {
-	i2c_pca_del_bus(&pca_isa_ops);
+	i2c_del_adapter(&pca_isa_ops);
 
 	if (irq > 0) {
 		disable_irq(irq);

drivers/i2c/busses/i2c-prosavage.c

@@ -212,7 +212,7 @@ static void prosavage_remove(struct pci_dev *dev)
 		if (chip->i2c_bus[i].adap_ok == 0)
 			continue;
 
-		ret = i2c_bit_del_bus(&chip->i2c_bus[i].adap);
+		ret = i2c_del_adapter(&chip->i2c_bus[i].adap);
 	        if (ret) {
 			dev_err(&dev->dev, "%s not removed\n",
 				chip->i2c_bus[i].adap.name);

drivers/i2c/busses/i2c-savage4.c

@@ -173,7 +173,7 @@ static int __devinit savage4_probe(struct pci_dev *dev, const struct pci_device_
 
 static void __devexit savage4_remove(struct pci_dev *dev)
 {
-	i2c_bit_del_bus(&savage4_i2c_adapter);
+	i2c_del_adapter(&savage4_i2c_adapter);
 	iounmap(ioaddr);
 }
 

drivers/i2c/busses/i2c-versatile.c

+/*
+ *  i2c-versatile.c
+ *
+ *  Copyright (C) 2006 ARM Ltd.
+ *  written by Russell King, Deep Blue Solutions Ltd.
+ *
+ * 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.
+ */
+#include <linux/kernel.h>
+#include <linux/module.h>
+#include <linux/i2c.h>
+#include <linux/i2c-algo-bit.h>
+#include <linux/init.h>
+#include <linux/platform_device.h>
+
+#include <asm/io.h>
+
+#define I2C_CONTROL	0x00
+#define I2C_CONTROLS	0x00
+#define I2C_CONTROLC	0x04
+#define SCL		(1 << 0)
+#define SDA		(1 << 1)
+
+struct i2c_versatile {
+	struct i2c_adapter	 adap;
+	struct i2c_algo_bit_data algo;
+	void __iomem		 *base;
+};
+
+static void i2c_versatile_setsda(void *data, int state)
+{
+	struct i2c_versatile *i2c = data;
+
+	writel(SDA, i2c->base + (state ? I2C_CONTROLS : I2C_CONTROLC));
+}
+
+static void i2c_versatile_setscl(void *data, int state)
+{
+	struct i2c_versatile *i2c = data;
+
+	writel(SCL, i2c->base + (state ? I2C_CONTROLS : I2C_CONTROLC));
+}
+
+static int i2c_versatile_getsda(void *data)
+{
+	struct i2c_versatile *i2c = data;
+	return !!(readl(i2c->base + I2C_CONTROL) & SDA);
+}
+
+static int i2c_versatile_getscl(void *data)
+{
+	struct i2c_versatile *i2c = data;
+	return !!(readl(i2c->base + I2C_CONTROL) & SCL);
+}
+
+static struct i2c_algo_bit_data i2c_versatile_algo = {
+	.setsda	= i2c_versatile_setsda,
+	.setscl = i2c_versatile_setscl,
+	.getsda	= i2c_versatile_getsda,
+	.getscl = i2c_versatile_getscl,
+	.udelay	= 30,
+	.timeout = HZ,
+};
+
+static int i2c_versatile_probe(struct platform_device *dev)
+{
+	struct i2c_versatile *i2c;
+	struct resource *r;
+	int ret;
+
+	r = platform_get_resource(dev, IORESOURCE_MEM, 0);
+	if (!r) {
+		ret = -EINVAL;
+		goto err_out;
+	}
+
+	if (!request_mem_region(r->start, r->end - r->start + 1, "versatile-i2c")) {
+		ret = -EBUSY;
+		goto err_out;
+	}
+
+	i2c = kzalloc(sizeof(struct i2c_versatile), GFP_KERNEL);
+	if (!i2c) {
+		ret = -ENOMEM;
+		goto err_release;
+	}
+
+	i2c->base = ioremap(r->start, r->end - r->start + 1);
+	if (!i2c->base) {
+		ret = -ENOMEM;
+		goto err_free;
+	}
+
+	writel(SCL | SDA, i2c->base + I2C_CONTROLS);
+
+	i2c->adap.owner = THIS_MODULE;
+	strlcpy(i2c->adap.name, "Versatile I2C adapter", sizeof(i2c->adap.name));
+	i2c->adap.algo_data = &i2c->algo;
+	i2c->adap.dev.parent = &dev->dev;
+	i2c->algo = i2c_versatile_algo;
+	i2c->algo.data = i2c;
+
+	ret = i2c_bit_add_bus(&i2c->adap);
+	if (ret >= 0) {
+		platform_set_drvdata(dev, i2c);
+		return 0;
+	}
+
+	iounmap(i2c->base);
+ err_free:
+	kfree(i2c);
+ err_release:
+	release_mem_region(r->start, r->end - r->start + 1);
+ err_out:
+	return ret;
+}
+
+static int i2c_versatile_remove(struct platform_device *dev)
+{
+	struct i2c_versatile *i2c = platform_get_drvdata(dev);
+
+	platform_set_drvdata(dev, NULL);
+
+	i2c_del_adapter(&i2c->adap);
+	return 0;
+}
+
+static struct platform_driver i2c_versatile_driver = {
+	.probe		= i2c_versatile_probe,
+	.remove		= i2c_versatile_remove,
+	.driver		= {
+		.name	= "versatile-i2c",
+		.owner	= THIS_MODULE,
+	},
+};
+
+static int __init i2c_versatile_init(void)
+{
+	return platform_driver_register(&i2c_versatile_driver);
+}
+
+static void __exit i2c_versatile_exit(void)
+{
+	platform_driver_unregister(&i2c_versatile_driver);
+}
+
+module_init(i2c_versatile_init);
+module_exit(i2c_versatile_exit);
+
+MODULE_DESCRIPTION("ARM Versatile I2C bus driver");
+MODULE_LICENSE("GPL");

drivers/i2c/busses/i2c-via.c

@@ -151,7 +151,7 @@ static int __devinit vt586b_probe(struct pci_dev *dev, const struct pci_device_i
 
 static void __devexit vt586b_remove(struct pci_dev *dev)
 {
-	i2c_bit_del_bus(&vt586b_adapter);
+	i2c_del_adapter(&vt586b_adapter);
 	release_region(I2C_DIR, IOSPACE);
 	pm_io_base = 0;
 }

drivers/i2c/busses/i2c-voodoo3.c

@@ -211,14 +211,14 @@ static int __devinit voodoo3_probe(struct pci_dev *dev, const struct pci_device_
 		return retval;
 	retval = i2c_bit_add_bus(&voodoo3_ddc_adapter);
 	if (retval)
-		i2c_bit_del_bus(&voodoo3_i2c_adapter);
+		i2c_del_adapter(&voodoo3_i2c_adapter);
 	return retval;
 }
 
 static void __devexit voodoo3_remove(struct pci_dev *dev)
 {
-	i2c_bit_del_bus(&voodoo3_i2c_adapter);
- 	i2c_bit_del_bus(&voodoo3_ddc_adapter);
+	i2c_del_adapter(&voodoo3_i2c_adapter);
+	i2c_del_adapter(&voodoo3_ddc_adapter);
 	iounmap(ioaddr);
 }
 

drivers/i2c/busses/scx200_i2c.c

@@ -116,7 +116,7 @@ static int scx200_i2c_init(void)
 
 static void scx200_i2c_cleanup(void)
 {
-	i2c_bit_del_bus(&scx200_i2c_ops);
+	i2c_del_adapter(&scx200_i2c_ops);
 }
 
 module_init(scx200_i2c_init);

drivers/i2c/chips/ds1337.c

@@ -347,13 +347,19 @@ static void ds1337_init_client(struct i2c_client *client)
 
 	if ((status & 0x80) || (control & 0x80)) {
 		/* RTC not running */
-		u8 buf[16];
+		u8 buf[1+16];	/* First byte is interpreted as address */
 		struct i2c_msg msg[1];
 
 		dev_dbg(&client->dev, "%s: RTC not running!\n", __FUNCTION__);
 
 		/* Initialize all, including STATUS and CONTROL to zero */
 		memset(buf, 0, sizeof(buf));
+
+		/* Write valid values in the date/time registers */
+		buf[1+DS1337_REG_DAY] = 1;
+		buf[1+DS1337_REG_DATE] = 1;
+		buf[1+DS1337_REG_MONTH] = 1;
+
 		msg[0].addr = client->addr;
 		msg[0].flags = 0;
 		msg[0].len = sizeof(buf);

drivers/i2c/i2c-core.c

@@ -128,14 +128,11 @@ static ssize_t show_client_name(struct device *dev, struct device_attribute *att
 }
 
 /*
- * We can't use the DEVICE_ATTR() macro here as we want the same filename for a
- * different type of a device.  So beware if the DEVICE_ATTR() macro ever
- * changes, this definition will also have to change.
+ * We can't use the DEVICE_ATTR() macro here, as we used the same name for
+ * an i2c adapter attribute (above).
  */
-static struct device_attribute dev_attr_client_name = {
-	.attr	= {.name = "name", .mode = S_IRUGO, .owner = THIS_MODULE },
-	.show	= &show_client_name,
-};
+static struct device_attribute dev_attr_client_name =
+	__ATTR(name, S_IRUGO, &show_client_name, NULL);
 
 
 /* ---------------------------------------------------
@@ -603,7 +600,7 @@ int i2c_transfer(struct i2c_adapter * adap, struct i2c_msg *msgs, int num)
 		}
 #endif
 
-		mutex_lock(&adap->bus_lock);
+		mutex_lock_nested(&adap->bus_lock, adap->level);
 		ret = adap->algo->master_xfer(adap,msgs,num);
 		mutex_unlock(&adap->bus_lock);
 

drivers/i2c/i2c-dev.c

@@ -90,6 +90,7 @@ static void return_i2c_dev(struct i2c_dev *i2c_dev)
 	spin_lock(&i2c_dev_list_lock);
 	list_del(&i2c_dev->list);
 	spin_unlock(&i2c_dev_list_lock);
+	kfree(i2c_dev);
 }
 
 static ssize_t show_adapter_name(struct device *dev,
@@ -193,8 +194,7 @@ static int i2cdev_ioctl(struct inode *inode, struct file *file,
 		return 0;
 	case I2C_FUNCS:
 		funcs = i2c_get_functionality(client->adapter);
-		return (copy_to_user((unsigned long __user *)arg, &funcs,
-		                     sizeof(unsigned long)))?-EFAULT:0;
+		return put_user(funcs, (unsigned long __user *)arg);
 
 	case I2C_RDWR:
 		if (copy_from_user(&rdwr_arg,
@@ -417,8 +417,8 @@ static int i2cdev_attach_adapter(struct i2c_adapter *adap)
 	i2c_dev->dev = device_create(i2c_dev_class, &adap->dev,
 				     MKDEV(I2C_MAJOR, adap->nr),
 				     "i2c-%d", adap->nr);
-	if (!i2c_dev->dev) {
-		res = -ENODEV;
+	if (IS_ERR(i2c_dev->dev)) {
+		res = PTR_ERR(i2c_dev->dev);
 		goto error;
 	}
 	res = device_create_file(i2c_dev->dev, &dev_attr_name);
@@ -432,7 +432,6 @@ static int i2cdev_attach_adapter(struct i2c_adapter *adap)
 	device_destroy(i2c_dev_class, MKDEV(I2C_MAJOR, adap->nr));
 error:
 	return_i2c_dev(i2c_dev);
-	kfree(i2c_dev);
 	return res;
 }
 
@@ -447,7 +446,6 @@ static int i2cdev_detach_adapter(struct i2c_adapter *adap)
 	device_remove_file(i2c_dev->dev, &dev_attr_name);
 	return_i2c_dev(i2c_dev);
 	device_destroy(i2c_dev_class, MKDEV(I2C_MAJOR, adap->nr));
-	kfree(i2c_dev);
 
 	pr_debug("i2c-dev: adapter [%s] unregistered\n", adap->name);
 	return 0;

drivers/ieee1394/pcilynx.c

@@ -1485,7 +1485,7 @@ static int __devinit add_card(struct pci_dev *dev,
 
                         }
 
-                        i2c_bit_del_bus(i2c_ad);
+			i2c_del_adapter(i2c_ad);
 			kfree(i2c_ad);
                 }
         }

drivers/media/dvb/pluto2/pluto2.c

@@ -650,7 +650,7 @@ static int __devinit pluto2_probe(struct pci_dev *pdev,
 	/* dvb */
 	ret = dvb_register_adapter(&pluto->dvb_adapter, DRIVER_NAME, THIS_MODULE, &pdev->dev);
 	if (ret < 0)
-		goto err_i2c_bit_del_bus;
+		goto err_i2c_del_adapter;
 
 	dvb_adapter = &pluto->dvb_adapter;
 
@@ -712,8 +712,8 @@ static int __devinit pluto2_probe(struct pci_dev *pdev,
 	dvb_dmx_release(dvbdemux);
 err_dvb_unregister_adapter:
 	dvb_unregister_adapter(dvb_adapter);
-err_i2c_bit_del_bus:
-	i2c_bit_del_bus(&pluto->i2c_adap);
+err_i2c_del_adapter:
+	i2c_del_adapter(&pluto->i2c_adap);
 err_pluto_hw_exit:
 	pluto_hw_exit(pluto);
 err_free_irq:
@@ -748,7 +748,7 @@ static void __devexit pluto2_remove(struct pci_dev *pdev)
 	dvb_dmxdev_release(&pluto->dmxdev);
 	dvb_dmx_release(dvbdemux);
 	dvb_unregister_adapter(dvb_adapter);
-	i2c_bit_del_bus(&pluto->i2c_adap);
+	i2c_del_adapter(&pluto->i2c_adap);
 	pluto_hw_exit(pluto);
 	free_irq(pdev->irq, pluto);
 	pci_iounmap(pdev, pluto->io_mem);

drivers/media/video/bt8xx/bttv-i2c.c

@@ -479,11 +479,7 @@ int __devexit fini_bttv_i2c(struct bttv *btv)
 	if (0 != btv->i2c_rc)
 		return 0;
 
-	if (btv->use_i2c_hw) {
 	return i2c_del_adapter(&btv->c.i2c_adap);
-	} else {
-		return i2c_bit_del_bus(&btv->c.i2c_adap);
-	}
 }
 
 /*

drivers/media/video/cx88/cx88-core.c

@@ -1153,7 +1153,7 @@ void cx88_core_put(struct cx88_core *core, struct pci_dev *pci)
 	mutex_lock(&devlist);
 	cx88_ir_fini(core);
 	if (0 == core->i2c_rc)
-		i2c_bit_del_bus(&core->i2c_adap);
+		i2c_del_adapter(&core->i2c_adap);
 	list_del(&core->devlist);
 	iounmap(core->lmmio);
 	cx88_devcount--;

drivers/media/video/cx88/cx88-vp3054-i2c.c

@@ -168,7 +168,7 @@ void vp3054_i2c_remove(struct cx8802_dev *dev)
 	    dev->core->board != CX88_BOARD_DNTV_LIVE_DVB_T_PRO)
 		return;
 
-	i2c_bit_del_bus(&vp3054_i2c->adap);
+	i2c_del_adapter(&vp3054_i2c->adap);
 	kfree(vp3054_i2c);
 }
 

drivers/media/video/vino.c

@@ -782,7 +782,7 @@ static int vino_i2c_add_bus(void)
 
 static int vino_i2c_del_bus(void)
 {
-	return i2c_sgi_del_bus(&vino_i2c_adapter);
+	return i2c_del_adapter(&vino_i2c_adapter);
 }
 
 static int i2c_camera_command(unsigned int cmd, void *arg)

drivers/media/video/zoran_card.c

@@ -849,7 +849,7 @@ zoran_register_i2c (struct zoran *zr)
 static void
 zoran_unregister_i2c (struct zoran *zr)
 {
-	i2c_bit_del_bus((&zr->i2c_adapter));
+	i2c_del_adapter(&zr->i2c_adapter);
 }
 
 /* Check a zoran_params struct for correctness, insert default params */

drivers/video/aty/radeon_i2c.c

@@ -120,19 +120,19 @@ void radeon_create_i2c_busses(struct radeonfb_info *rinfo)
 void radeon_delete_i2c_busses(struct radeonfb_info *rinfo)
 {
 	if (rinfo->i2c[0].rinfo)
-		i2c_bit_del_bus(&rinfo->i2c[0].adapter);
+		i2c_del_adapter(&rinfo->i2c[0].adapter);
 	rinfo->i2c[0].rinfo = NULL;
 
 	if (rinfo->i2c[1].rinfo)
-		i2c_bit_del_bus(&rinfo->i2c[1].adapter);
+		i2c_del_adapter(&rinfo->i2c[1].adapter);
 	rinfo->i2c[1].rinfo = NULL;
 
 	if (rinfo->i2c[2].rinfo)
-		i2c_bit_del_bus(&rinfo->i2c[2].adapter);
+		i2c_del_adapter(&rinfo->i2c[2].adapter);
 	rinfo->i2c[2].rinfo = NULL;
 
 	if (rinfo->i2c[3].rinfo)
-		i2c_bit_del_bus(&rinfo->i2c[3].adapter);
+		i2c_del_adapter(&rinfo->i2c[3].adapter);
 	rinfo->i2c[3].rinfo = NULL;
 }
 

drivers/video/i810/i810-i2c.c

@@ -137,15 +137,15 @@ void i810_create_i2c_busses(struct i810fb_par *par)
 void i810_delete_i2c_busses(struct i810fb_par *par)
 {
         if (par->chan[0].par)
-                i2c_bit_del_bus(&par->chan[0].adapter);
+		i2c_del_adapter(&par->chan[0].adapter);
         par->chan[0].par = NULL;
 
 	if (par->chan[1].par)
-		i2c_bit_del_bus(&par->chan[1].adapter);
+		i2c_del_adapter(&par->chan[1].adapter);
 	par->chan[1].par = NULL;
 
 	if (par->chan[2].par)
-		i2c_bit_del_bus(&par->chan[2].adapter);
+		i2c_del_adapter(&par->chan[2].adapter);
 	par->chan[2].par = NULL;
 }
 

drivers/video/intelfb/intelfb_i2c.c

@@ -188,11 +188,11 @@ void intelfb_delete_i2c_busses(struct intelfb_info *dinfo)
 
 	for (i = 0; i < MAX_OUTPUTS; i++) {
 		if (dinfo->output[i].i2c_bus.dinfo) {
-			i2c_bit_del_bus(&dinfo->output[i].i2c_bus.adapter);
+			i2c_del_adapter(&dinfo->output[i].i2c_bus.adapter);
 			dinfo->output[i].i2c_bus.dinfo = NULL;
 		}
 		if (dinfo->output[i].ddc_bus.dinfo) {
-			i2c_bit_del_bus(&dinfo->output[i].ddc_bus.adapter);
+			i2c_del_adapter(&dinfo->output[i].ddc_bus.adapter);
 			dinfo->output[i].ddc_bus.dinfo = NULL;
 		}
 	}

drivers/video/matrox/i2c-matroxfb.c

@@ -124,7 +124,7 @@ static int i2c_bus_reg(struct i2c_bit_adapter* b, struct matrox_fb_info* minfo,
 
 static void i2c_bit_bus_del(struct i2c_bit_adapter* b) {
 	if (b->initialized) {
-		i2c_bit_del_bus(&b->adapter);
+		i2c_del_adapter(&b->adapter);
 		b->initialized = 0;
 	}
 }

drivers/video/nvidia/nv_i2c.c

@@ -147,15 +147,15 @@ void nvidia_create_i2c_busses(struct nvidia_par *par)
 void nvidia_delete_i2c_busses(struct nvidia_par *par)
 {
 	if (par->chan[0].par)
-		i2c_bit_del_bus(&par->chan[0].adapter);
+		i2c_del_adapter(&par->chan[0].adapter);
 	par->chan[0].par = NULL;
 
 	if (par->chan[1].par)
-		i2c_bit_del_bus(&par->chan[1].adapter);
+		i2c_del_adapter(&par->chan[1].adapter);
 	par->chan[1].par = NULL;
 
 	if (par->chan[2].par)
-		i2c_bit_del_bus(&par->chan[2].adapter);
+		i2c_del_adapter(&par->chan[2].adapter);
 	par->chan[2].par = NULL;
 
 }

drivers/video/riva/rivafb-i2c.c

@@ -144,15 +144,15 @@ void riva_create_i2c_busses(struct riva_par *par)
 void riva_delete_i2c_busses(struct riva_par *par)
 {
 	if (par->chan[0].par)
-		i2c_bit_del_bus(&par->chan[0].adapter);
+		i2c_del_adapter(&par->chan[0].adapter);
 	par->chan[0].par = NULL;
 
 	if (par->chan[1].par)
-		i2c_bit_del_bus(&par->chan[1].adapter);
+		i2c_del_adapter(&par->chan[1].adapter);
 	par->chan[1].par = NULL;
 
 	if (par->chan[2].par)
-		i2c_bit_del_bus(&par->chan[2].adapter);
+		i2c_del_adapter(&par->chan[2].adapter);
 	par->chan[2].par = NULL;
 }
 

drivers/video/savage/savagefb-i2c.c

@@ -208,7 +208,7 @@ void savagefb_delete_i2c_busses(struct fb_info *info)
 	struct savagefb_par *par = info->par;
 
 	if (par->chan.par)
-		i2c_bit_del_bus(&par->chan.adapter);
+		i2c_del_adapter(&par->chan.adapter);
 
 	par->chan.par = NULL;
 }

include/asm-arm/arch-pnx4008/i2c.h

+/*
+ * 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___ */

include/linux/i2c-algo-bit.h

@@ -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 */

include/linux/i2c-algo-ite.h

-/* ------------------------------------------------------------------------- */
-/* 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 Kysti Mlkki <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 */

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 */

include/linux/i2c-algo-pcf.h

@@ -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 */

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 */

include/linux/i2c-id.h

@@ -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
@@ -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 */
 

include/linux/i2c-pnx.h

+/*
+ * 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__ */

include/linux/i2c.h

@@ -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;