i2c: move OF helpers into the core

I2C of helpers used to live in of_i2c.c but experience (from SPI) shows
that it is much cleaner to have this in the core. This also removes a
circular dependency between the helpers and the core, and so we can
finally register child nodes in the core instead of doing this manually
in each driver. So, fix the drivers and documentation, too.

Signed-off-by: Wolfram Sang <wsa@the-dreams.de>

1 files changed, 0 insertions, 6 deletions

diff --git a/drivers/of/Kconfig b/drivers/of/Kconfig
index 80e5c13b930d..78cc76053328 100644
--- a/drivers/of/Kconfig
+++ b/drivers/of/Kconfig
@@ -48,12 +48,6 @@ config OF_IRQ
         def_bool y
         depends on !SPARC
 
-config OF_I2C
-        def_tristate I2C
-        depends on I2C
-        help
-          OpenFirmware I2C accessors
-
 config OF_NET
         depends on NETDEVICES
         def_bool y