On Thu, Mar 4, 2021 at 4:42 AM Brad Larson <brad@xxxxxxxxxxx> wrote: > The Pensando Elba SoC uses a GPIO based chip select > for two DW SPI busses with each bus having two > chip selects. > > Signed-off-by: Brad Larson <brad@xxxxxxxxxxx> I agree with Serge's comments here: the existing cs callback should work for your SoC, you should only need the new compatible string. I see why you need the special GPIO driver for this now, as that is obviously driven by totally different hardware. Yours, Linus Walleij