On 17/12/2021 11:43, Mark Brown wrote: > EXTERNAL EMAIL: Do not click links or open attachments unless you know the content is safe > > On Fri, Dec 17, 2021 at 11:40:29AM +0000, Conor.Dooley@xxxxxxxxxxxxx wrote: >> On 17/12/2021 11:17, Mark Brown wrote: >>> Why do you need this property in the DT - isn't the number of chip >>> selects in the IP a fixes property? >> >> Nope! It's an IP that's intended for use in FPGAs so the number of >> selects may (and does) vary based on implementation. > > That doesn't explain why the number is needed in the binding - why do > you need this property in the DT? Took another look at the IP core configuration & I think you're right and that property can be dropped. The register responsible for CS control will not be optimised away even if the CS is not used & the worst outcome is that nothing will happen.