IBM PPC 4xx i2c controller doesn't support 0-length transactions (e.g. used by
SMBUS_QUICK). This patch implements bit-banging emulation for such requests and
removes temporary kludge added earlier.
Signed-off-by: Eugene Surovegin <ebs@ebshome.net>
Signed-off-by: Greg Kroah-Hartman <greg@kroah.com>