[PORT FROM R2] nfc: split long i2c xfers into smaller chunks supported by i2c controller
BZ: 23876
Due to limitation of I2C silicon on Penwell I2C xfers longer than 31 bytes
are not guaranteed to be atomic. If TX fifo underrun occurs during such
a transfer I2C controller will automatically generate a STOP condition.
This patch splits all long I2C transfer requested by NFC stack into chunks
of up to 31 bytes and transmits them as separate I2C transfers.
Change-Id: I9801081ee275d57ce00e86d1dc310e391e73bd27
Orig-Change-Id: I2533a7e61110c34107e963d5fb2444b64dc70fb4
Signed-off-by: Sebastian Niciarz <sebastian.niciarz@intel.com>
Signed-off-by: Dejan REBRACA <dejanx.rebraca@intel.com>
Reviewed-on: http://android.intel.com:8080/36616
Reviewed-by: Monroy, German <german.monroy@intel.com>
Reviewed-by: Gross, Mark <mark.gross@intel.com>
Reviewed-by: Wahid, KenX <kenx.wahid@intel.com>
Reviewed-by: Yang, Bin <bin.yang@intel.com>
Tested-by: Zurmely, PierreX <pierrex.zurmely@intel.com>
Reviewed-by: buildbot <buildbot@intel.com>
Tested-by: buildbot <buildbot@intel.com>