[v15,1/2] i2c: buses: add i2c bus driver for NVIDIA GPU

On Fri, Oct 26, 2018 at 09:36:58AM -0700, Ajay Gupta wrote:

Latest NVIDIA GPU card has USB Type-C interface. There is a
Type-C controller which can be accessed over I2C.

This driver adds I2C bus driver to communicate with Type-C controller.
I2C client driver will be part of USB Type-C UCSI driver.

Signed-off-by: Ajay Gupta <ajayg@nvidia.com>

I have some minor comments, yet the driver is good enough to be applied,
I think. Thanks to all involved in reviewing this! I'll use the rc1 rule
for new drivers and send my comments as incremental patches. So:

Applied to for-current, thanks!

I will leave the USB part of this series for the USB subsystem. If I
shall take it through I2C, please let me know.