RE: [PATCH v2 0/6] spi: Add Renesas SPIBSC controller

[Chris Brandt <Chris.Brandt@xxxxxxxxxxx>]

On Thu, Dec 12, 2019 1, Mark Brown wrote:
> > Is that why this "RPC" patch series is taking so long?
> > It's a fairly simple piece of hardware.
> 
> The submitter appeared to be having difficulty with feedback from the
> reviewers with knowledge of the hardware, then it looks like the last
> version of the patch set didn't get any comments from any of those
> reviewers.

I went and looked at the driver and it was more complicated than what I 
did so I wasn't sure if there was some more advanced functionality or
something that was trying to be achieved.

I admit, V1 of this hardware (in the RZ/A1) was easier than V2 (RZ/A2 & R-Car),
so I had to re-write our BSP driver when it came time to support RZ/A2.
Basically, when they added HyperFlash support...it 'changed' how SPI
support was working. 

I agree with Sergei that it is always better to have a common driver for
common HW across different SoCs. However, it's not clear yet why there
needs to be increased complexity.

There were some good suggestions from the V2 series that I think complete
this driver. But I have not sent out a V3 until I can better understand
this 'competing' solution.

Chris