Re: [PATCH v3 00/21] spi: dw: Add full Baikal-T1 SPI Controllers support

[Andy Shevchenko]

On Fri, Oct 02, 2020 at 01:28:08AM +0300, Serge Semin wrote:
> Originally I intended to merge a dedicated Baikal-T1 System Boot SPI
> Controller driver into the kernel and leave the DW APB SSI driver
> untouched. But after a long discussion (see the link at the bottom of the
> letter) Mark and Andy persuaded me to integrate what we developed there
> into the DW APB SSI core driver to be useful for another controllers,
> which may have got the same peculiarities/problems as ours:
> - No IRQ.
> - No DMA.
> - No GPIO CS, so a native CS is utilized.
> - small Tx/Rx FIFO depth.
> - Automatic CS assertion/de-assertion.
> - Slow system bus.
> All of them have been fixed in the framework of this patchset in some
> extent at least for the SPI memory operations. As I expected it wasn't
> that easy and the integration took that many patches as you can see from
> the subject. Though some of them are mere cleanups or weakly related with
> the subject fixes, but we just couldn't leave the code as is at some
> places since we were working with the DW APB SSI driver anyway. Here is
> what we did to fix the original DW APB SSI driver, to make it less messy.

Maybe it's time to put your name into MAINTAINERS for this driver?


-- 
With Best Regards,
Andy Shevchenko