On Mon, 8 Jan 2024 11:15:31 -0600 David Lechner <dlechner@xxxxxxxxxxxx> wrote: > On Mon, Jan 8, 2024 at 10:39 AM Mark Brown <broonie@xxxxxxxxxx> wrote: > > > > On Sun, Jan 07, 2024 at 05:02:56PM -0600, David Lechner wrote: > > > On Sun, Jan 7, 2024 at 3:27 PM Mark Brown <broonie@xxxxxxxxxx> wrote: > > > > > > This makes no sense to me without a corresponding change in the SPI core > > > > and possibly controller support, though I guess you could do data > > > > manging to rewrite from a normal parallel SPI to this for a pure > > > > software implementation. I also see nothing in the driver that even > > > > attempts to parse this so I can't see how it could possibly work. > > > > > We currently don't have a controller that supports this. This is just > > > an attempt to make a complete binding for a peripheral according to > > > [2] which says: > > > > ... > > > > > So, will DT maintainers accept an incomplete binding for the > > > peripheral? Or will you reconsider this without SPI core support if I > > > can explain it better? It doesn't seem like a reasonable request to > > > expect us to spend time developing software that we don't need at this > > > time just to get a complete DT binding accepted for a feature that > > > isn't being used. > > > > I don't think it's sensible to try to make a binding for this without > > having actually tried to put a system together that uses it and made > > sure that everything is joined up properly, the thing about complete > > bindings is more for things that are handle turning than for things that > > are substantial new features in subsystems. > > We do have plans to eventually implement such a feature in an > FPGA-based SPI controller, so if we need to wait until then for the > binding, then we can do that. But it would be really nice if we could > find a way forward for the IIO driver in this series without having to > wait for the resolution of new SPI controller feature for the complete > DT bindings. > > DT/IIO maintainers, if I resubmit this series with the > `spi-rx-bus-channels` parts removed from the iio/adc/adi,ad7380.yaml > bindings, would that be acceptable? (Also resubmitting without this > patch of course.) > >From IIO side of things that's fine with me. Jonathan
