i2c: Obsolete i2c-ixp2000, i2c-ixp4xx and scx200_i2c

The new generic i2c-gpio driver should be used instead.
The obsolete drivers will be removed in September 2007.

Signed-off-by: Jean Delvare <khali@linux-fr.org>
Cc: Deepak Saxena <dsaxena@plexity.net>
Cc: Jordan Crouse <jordan.crouse@amd.com>

Documentation/feature-removal-schedule.txt

@@ -306,3 +306,11 @@ Why:	Code was merged, then submitter immediately disappeared leaving
 Who:	David S. Miller <davem@davemloft.net>
 
 ---------------------------
+
+What:	i2c-ixp2000, i2c-ixp4xx and scx200_i2c drivers
+When:	September 2007
+Why:	Obsolete. The new i2c-gpio driver replaces all hardware-specific
+	I2C-over-GPIO drivers.
+Who:	Jean Delvare <khali@linux-fr.org>
+
+---------------------------

drivers/i2c/busses/Kconfig

@@ -240,7 +240,7 @@ config I2C_ISA
 	tristate
 
 config I2C_IXP4XX
-	tristate "IXP4xx GPIO-Based I2C Interface"
+	tristate "IXP4xx GPIO-Based I2C Interface (DEPRECATED)"
 	depends on ARCH_IXP4XX
 	select I2C_ALGOBIT
 	help
@@ -250,8 +250,11 @@ config I2C_IXP4XX
 	  This support is also available as a module. If so, the module
 	  will be called i2c-ixp4xx.
 
+	  This driver is deprecated and will be dropped soon. Use i2c-gpio
+	  instead.
+
 config I2C_IXP2000
-	tristate "IXP2000 GPIO-Based I2C Interface"
+	tristate "IXP2000 GPIO-Based I2C Interface (DEPRECATED)"
 	depends on ARCH_IXP2000
 	select I2C_ALGOBIT
 	help
@@ -261,6 +264,9 @@ config I2C_IXP2000
 	  This support is also available as a module. If so, the module
 	  will be called i2c-ixp2000.
 
+	  This driver is deprecated and will be dropped soon. Use i2c-gpio
+	  instead.
+
 config I2C_POWERMAC
 	tristate "Powermac I2C interface"
 	depends on PPC_PMAC
@@ -426,7 +432,7 @@ config I2C_SIMTEC
 	  will be called i2c-simtec.
 
 config SCx200_I2C
-	tristate "NatSemi SCx200 I2C using GPIO pins"
+	tristate "NatSemi SCx200 I2C using GPIO pins (DEPRECATED)"
 	depends on SCx200_GPIO
 	select I2C_ALGOBIT
 	help
@@ -437,6 +443,9 @@ config SCx200_I2C
 	  This support is also available as a module.  If so, the module 
 	  will be called scx200_i2c.
 
+	  This driver is deprecated and will be dropped soon. Use i2c-gpio
+	  (or scx200_acb) instead.
+
 config SCx200_I2C_SCL
 	int "GPIO pin used for SCL"
 	depends on SCx200_I2C