Re: [PATCH] dt-bindings: firmware: document Qualcomm SM6375 SCM

Guru Das Srinagesh
2022-09-26T17:37:36Z

On Sep 24 2022 10:17, Krzysztof Kozlowski wrote:
> On 24/09/2022 02:09, Guru Das Srinagesh wrote:
> > On Sep 21 2022 20:43, Konrad Dybcio wrote:
> >> Does it? I did not define this compatible in the driver, so it does
> >> not consume any clocks.
> >
> > The bindings should describe only those compatibles that the driver supports -
> > that is, both the driver and its bindings should be in sync.
>
> That's not entirely true. Bindings describe the hardware in the most
> complete way we can. Not the driver. Whether driver supports something
> or not, is not relevant here, except that we don't want to document
> non-existing things or stuff out of tree.

Is this only applicable to compatibles or device tree properties in general?

> >
> > Could you please update the driver with this compatible as well? Let's not
> > merge this change without that first.
>
> This could be even merged without change in the driver. However it's not
> the case here as driver already supports it, so your request is fulfilled.

My concern is that if somebody specifies a compatible/device tree property that
the driver doesn't support, their expectations from adding that change will not
be met. In addition to having the bindings describe HW in full, I think the
driver should also be in sync with it for this reason.

Thank you.

Guru Das.