On Fri, Jul 23, 2021 at 06:10:22PM +0100, Jonathan Cameron wrote:

@Mark.  This has come up a few times recently.  Are we now safe to assume
that regmap will always copy data when used with SPI and hence we no
longer need to ensure DMA safe buffers?   

Only for single register I/O, I'd not assume that for things like raw
I/O.

Note that my name is spelt Mark.