On Thu, Nov 16, 2023 at 09:00:50PM +0100, Krzysztof Kozlowski wrote: > On 16/11/2023 19:21, Conor Dooley wrote: > > >>> +allOf: > >>> + - if: > >>> + properties: > >>> + compatible: > >>> + contains: > >>> + const: interrupts > >> > >> > >> I don't understand what do you want to say here. I am also 100% sure you > >> did not test it on a real case (maybe example passes but nothing more). > > > > As far as I understand, the same pin on the device is used for both an > > output or an input depending on the configuration. As an input, it is > > the "slow-io" control, and as an output it is an interrupt. > > I think Marius is trying to convey that either this pin can be in > > exclusively one state or another. > > > > _However_ I am not sure that that is really the right thing to do - they > > might well be mutually exclusive modes, but I think the decision can be > > made at runtime, rather than at devicetree creation time. Say for > > example the GPIO controller this is connected to is capable of acting as > > an interrupt controller. Unless I am misunderstanding the runtime > > configurability of this hardware, I think it is possible to actually > > provide a "slow-io-gpios" and an interrupt property & let the operating > > system decide at runtime which mode it wants to work in. > > > > I'm off travelling at the moment Marius, but I should be back in work on > > Monday if you want to have a chat about it & explain a bit more to me? > > Sure, but which compatible contains "interrupts"? Yeah, I did notice that - I figured you understood that that was meant to not be a check on compatibles, but rather on regular old properties & the rationale for the mutual exclusion was what you were missing.
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