I2C probe not happening

I'm using DENX-2.6.26, and I've enabled the I2C_IBM_IIC on a Sequoia board, but I don't see any probes happening.

It looks like of_register_i2c_devices is never being called. According to cscope, it would be called in i2c-ibm_of.c, but that file is not part of the build.

i2c-ibm_of.c would be compiled if CONFIG_I2C_IBM_OF was selected, but there is no place in the Kconfig files that I2C_IBM_OF is mentioned. So, I added it like so:

index e9f88fe..a221b15 100644
@@ -247,9 +247,16 @@ config I2C_PIIX4
 	  This driver can also be built as a module.  If so, the module
 	  will be called i2c-piix4.
 
+config I2C_IBM_OF
+	tristate "IBM PPC 4xx open-firmware driver"
+	depends on 4xx
+	help
+	  Use openfirmware driver mechanism.
+
 config I2C_IBM_IIC
 	tristate "IBM PPC 4xx on-chip I2C interface"
 	depends on 4xx
+	select I2C_IBM_OF
 	help
 	  Say Y here if you want to use IIC peripheral found on
 	  embedded IBM PPC 4xx based systems.

Also, I noticed that i2c-ibm_of.c doesn't have an entry for the 440EPx, so I added one:

index 08440ab..df35686 100644
@@ -906,6 +906,7 @@ static const struct of_device_id ibm_iic_match[] = {
 	{ .compatible = "ibm,iic-405ex", },
 	{ .compatible = "ibm,iic-405exr", },
 	{ .compatible = "ibm,iic-405gp", },
+	{ .compatible = "ibm,iic-440epx", },
 	{ .compatible = "ibm,iic-440gp", },
 	{ .compatible = "ibm,iic-440gpx", },
 	{ .compatible = "ibm,iic-440grx", },

However, the file does not compile. I get:

linux-2.6-denx/drivers/i2c/busses/i2c-ibm_of.c:702:
error: 'struct i2c_board_info' has no member named 'driver_name' make[4]: *** [drivers/i2c/busses/i2c-ibm_of.o] Error 1

So perhaps it should not be part of the build. But in that case, I see no way for the probes to run.

I must be missing something - hints gratefully accepted.

Steve