[PATCH 0/6] Fix R-Car I2C data byte sent twice issue

[Fabrizio Castro <fabrizio.castro@bp.renesas.com>]

Hello Greg,

this series fixes an issue with the I2C driver of the Renesas R-Car and
RZ/G1 family of chips. The issue is clearly visible with the CIP kernel
(4.4) running on a iwg20d board from iWave due to the way the bq32000
driver/device is interacting with the I2C driver/controller.
In the stable kernel (4.4) there is no support for the iwg20d, I tried
to replicate the same problem on a Koelsch board with no success, but
the problem is there.

Do you think this series is suitable for (4.4) stable considering I
can't reproduce the problem on the Koelsch board?

This patches apply on top of 4.4.133.

Thanks,
Fab

Wolfram Sang (6):
  i2c: rcar: make sure clocks are on when doing clock calculation
  i2c: rcar: rework hw init
  i2c: rcar: remove unused IOERROR state
  i2c: rcar: remove spinlock
  i2c: rcar: refactor setup of a msg
  i2c: rcar: init new messages in irq

 drivers/i2c/busses/i2c-rcar.c | 166 ++++++++++++++++++------------------------
 1 file changed, 72 insertions(+), 94 deletions(-)

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2.7.4