Pull i2c fixes from Wolfram Sang:
"Some driver bugfixes for the I2C subsystem"
* 'i2c/for-current' of git://git.kernel.org/pub/scm/linux/kernel/git/wsa/linux:
i2c: mv64xxx: Document the newly introduced allwinner compatible
i2c: Fix Kontron PLD prescaler calculation
i2c: i2c-mxs: Use DMA mode even for small transfers