i2c-designware: split of i2c-designware.c into core and bus specific parts
This patch splits i2c-designware.c into three pieces: i2c-designware-core.c, contains the code that interacts directly with the core. i2c-designware-platdrv.c, contains the code specific to the platform driver using the core. i2c-designware-core.h contains the definitions and declareations shared by i2c-designware-core.c and i2c-designware-platdrv.c. This patch is the first in a set to allow multiple instances of the designware I2C core in the system. Signed-off-by: NDirk Brandewie <dirk.brandewie@gmail.com> Signed-off-by: NBen Dooks <ben-linux@fluff.org>
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