Re: [PATCH v2] spi: Add FSI-attached SPI controller driver

[Andy Shevchenko <andy.shevchenko@xxxxxxxxx>]

On Tue, Feb 4, 2020 at 12:30 AM Eddie James <eajames@xxxxxxxxxxxxx> wrote:
>
> There exists a set of SPI controllers on some POWER processors that may
> be accessed through the FSI bus. Add a driver to traverse the FSI CFAM
> engine that can access and drive the SPI controllers. This driver would
> typically be used by a baseboard management controller (BMC).
>
> The SPI controllers operate by means of programming a sequencing engine
> which automatically manages the usual SPI protocol buses. The driver
> programs each transfer into the sequencer as various operations
> specifying the slave chip and shifting data in and out on the lines.

Some comments left unsettled in v1, thus applicable here.

-- 
With Best Regards,
Andy Shevchenko