i2c-eg20t: add driver for Intel EG20T

I2C driver for Intel EG20T PCH

Signed-off-by: Tomoya MORINAGA <tomoya-linux@dsn.okisemi.com>
Reviewed-by: Linus Walleij <linus.walleij@stericsson.com>
Signed-off-by: Qi Wang <qi.wang@intel.com>
[ben-linux@fluff.org: reworded commit message]
Signed-off-by: Ben Dooks <ben-linux@fluff.org>
diff --git a/drivers/i2c/busses/Kconfig b/drivers/i2c/busses/Kconfig
index 3a6321c..113505a 100644
--- a/drivers/i2c/busses/Kconfig
+++ b/drivers/i2c/busses/Kconfig
@@ -638,6 +638,14 @@
 	  This driver can also be built as a module.  If so, the module
 	  will be called xilinx_i2c.
 
+config I2C_EG20T
+        tristate "PCH I2C of Intel EG20T"
+        depends on PCI
+        help
+          This driver is for PCH(Platform controller Hub) I2C of EG20T which
+          is an IOH(Input/Output Hub) for x86 embedded processor.
+          This driver can access PCH I2C bus device.
+
 comment "External I2C/SMBus adapter drivers"
 
 config I2C_PARPORT