Re: [PATCH 1/2] dt-bindings: remoteproc: mediatek: Fix optional reg-names for mtk,scp

[AngeloGioacchino Del Regno]

Il 03/05/22 14:19, Krzysztof Kozlowski ha scritto:
> On 29/04/2022 23:11, Nícolas F. R. A. Prado wrote:
> > The SCP has three memory regions: sram, l1tcm and cfg. Only sram is
> > required, the other two are optional. Fix the dt-binding so that the
> > optional regions can be omitted and passed in any order.
>
> No, cannot be passed in any order.
>
> > Also add the missing minItems to the reg property and update the
> > description.
> >
> > Signed-off-by: Nícolas F. R. A. Prado <nfraprado@xxxxxxxxxxxxx>
> >
> > ---
> >
> >   .../devicetree/bindings/remoteproc/mtk,scp.yaml      | 12 +++++++++---
> >   1 file changed, 9 insertions(+), 3 deletions(-)
> >
> > diff --git a/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml b/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml
> > index 823a236242de..ec9ddeb6ca2c 100644
> > --- a/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml
> > +++ b/Documentation/devicetree/bindings/remoteproc/mtk,scp.yaml
> > @@ -24,14 +24,20 @@ properties:
> >     reg:
> >       description:
> >         Should contain the address ranges for memory regions SRAM, CFG, and
> > -      L1TCM.
> > +      L1TCM. Only SRAM is required, while CFG and L1TCM are optional.
> > +    minItems: 1
> >       maxItems: 3
> >   
> >     reg-names:
> > +    minItems: 1
> >       items:
> >         - const: sram
> > -      - const: cfg
> > -      - const: l1tcm
> > +      - enum:
> > +          - l1tcm
> > +          - cfg
> > +      - enum:
> > +          - l1tcm
> > +          - cfg
>
> This allows them in any combination which is not what we want. If both
> are optional and both can appear, then last should be a const:l1tcm.
>
> Best regards,
> Krzysztof

Nicolas, I think that you weren't clear about what you're trying to solve with this
commit in the description.

I remember you had this kind of instance, but I don't really remember if it was
about mtk,scp or (and?) something else.... so.... are you trying to fix issues
with devicetrees declaring

	reg-names = "sram", "l1tcm"; ?

Was this giving dtbs_check errors?

Cheers,
Angelo