Re: [PATCH v1 1/5] dt-bindings: PCI: qcom-ep: Add support for SA8775P SoC

[Shazad Hussain]

On 9/22/2023 12:08 AM, Rob Herring wrote:
> On Wed, Sep 20, 2023 at 07:25:08PM +0530, Mrinmay Sarkar wrote:
> > Add devicetree bindings support for SA8775P SoC.
> > Define reg and interrupt per platform.
> >
> > Signed-off-by: Mrinmay Sarkar <quic_msarkar@xxxxxxxxxxx>
> > ---
> >   .../devicetree/bindings/pci/qcom,pcie-ep.yaml      | 130 +++++++++++++++++----
> >   1 file changed, 108 insertions(+), 22 deletions(-)
> >
> > diff --git a/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml b/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
> > index a223ce0..e860e8f 100644
> > --- a/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
> > +++ b/Documentation/devicetree/bindings/pci/qcom,pcie-ep.yaml
> > @@ -13,6 +13,7 @@ properties:
> >     compatible:
> >       oneOf:
> >         - enum:
> > +          - qcom,sa8775p-pcie-ep
> >             - qcom,sdx55-pcie-ep
> >             - qcom,sm8450-pcie-ep
> >         - items:
> > @@ -20,29 +21,19 @@ properties:
> >             - const: qcom,sdx55-pcie-ep
> >   
> >     reg:
> > -    items:
> > -      - description: Qualcomm-specific PARF configuration registers
> > -      - description: DesignWare PCIe registers
> > -      - description: External local bus interface registers
> > -      - description: Address Translation Unit (ATU) registers
> > -      - description: Memory region used to map remote RC address space
> > -      - description: BAR memory region
> > +    minItems: 6
> > +    maxItems: 7
> >   
> >     reg-names:
> > -    items:
> > -      - const: parf
> > -      - const: dbi
> > -      - const: elbi
> > -      - const: atu
> > -      - const: addr_space
> > -      - const: mmio
> > +    minItems: 6
> > +    maxItems: 7
>
> Don't move these into if/then schemas. Then we are duplicating the
> names, and there is no reason to keep them aligned for new compatibles.
>
> Rob

Hi Rob,
As we have one extra reg property (dma) required for sa8775p-pcie-ep,
isn't it expected to be moved in if/then as per number of regs
required. Anyways we would have duplication of some properties for new
compatibles where the member numbers differs for a property.

Are you suggesting to add the extra reg property (dma) in the existing 
reg and reg-names list, and add minItems/maxItems for all compatibles 
present in this file ?

-Shazad