Re: [PATCH 3/3] dt-bindings: PCI: host-bridges: switch from deprecated pci-bus.yaml

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On 10/04/2024 19:48, Rob Herring wrote:
> On Sun, Apr 07, 2024 at 12:20:00PM +0200, Krzysztof Kozlowski wrote:
>> dtschema package with core schemas deprecated pci-bus.yaml schema in
>> favor of pci-host-bridge.yaml.  Update all bindings to use the latter
>> one.
>>
>> The difference between pci-bus.yaml and pci-host-bridge.yaml is only in
>> lack of "reg" property defined by the latter, which should not have any
>> effect here, because all these bindings define the "reg".
>>
>> The change is therefore quite trivial, except mediatek,mt7621-pcie.yaml
>> binding which have children nodes being also host bridges, apparently.
>>
>> Signed-off-by: Krzysztof Kozlowski <krzysztof.kozlowski@xxxxxxxxxx>
>> ---
>>  Documentation/devicetree/bindings/pci/amlogic,axg-pcie.yaml   | 2 +-
>>  Documentation/devicetree/bindings/pci/apple,pcie.yaml         | 2 +-
>>  Documentation/devicetree/bindings/pci/brcm,iproc-pcie.yaml    | 2 +-
>>  Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml      | 2 +-
>>  Documentation/devicetree/bindings/pci/cdns-pcie-host.yaml     | 2 +-
>>  Documentation/devicetree/bindings/pci/faraday,ftpci100.yaml   | 2 +-
>>  Documentation/devicetree/bindings/pci/host-generic-pci.yaml   | 2 +-
>>  Documentation/devicetree/bindings/pci/intel,ixp4xx-pci.yaml   | 2 +-
>>  Documentation/devicetree/bindings/pci/intel,keembay-pcie.yaml | 2 +-
>>  Documentation/devicetree/bindings/pci/loongson.yaml           | 2 +-
>>  .../devicetree/bindings/pci/mediatek,mt7621-pcie.yaml         | 4 ++--
>>  Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml | 2 +-
>>  .../devicetree/bindings/pci/microchip,pcie-host.yaml          | 2 +-
>>  Documentation/devicetree/bindings/pci/qcom,pcie-common.yaml   | 2 +-
>>  Documentation/devicetree/bindings/pci/qcom,pcie.yaml          | 2 +-
>>  Documentation/devicetree/bindings/pci/rcar-pci-host.yaml      | 2 +-
>>  .../devicetree/bindings/pci/renesas,pci-rcar-gen2.yaml        | 2 +-
>>  .../devicetree/bindings/pci/rockchip,rk3399-pcie.yaml         | 2 +-
>>  Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml       | 2 +-
>>  Documentation/devicetree/bindings/pci/ti,am65-pci-host.yaml   | 2 +-
>>  Documentation/devicetree/bindings/pci/versatile.yaml          | 2 +-
>>  Documentation/devicetree/bindings/pci/xilinx-versal-cpm.yaml  | 2 +-
>>  Documentation/devicetree/bindings/pci/xlnx,axi-pcie-host.yaml | 2 +-
>>  Documentation/devicetree/bindings/pci/xlnx,nwl-pcie.yaml      | 2 +-
>>  Documentation/devicetree/bindings/pci/xlnx,xdma-host.yaml     | 2 +-
>>  25 files changed, 26 insertions(+), 26 deletions(-)
> 
> 
>> diff --git a/Documentation/devicetree/bindings/pci/mediatek,mt7621-pcie.yaml b/Documentation/devicetree/bindings/pci/mediatek,mt7621-pcie.yaml
>> index 61d027239910..5bbb4a3f3dbd 100644
>> --- a/Documentation/devicetree/bindings/pci/mediatek,mt7621-pcie.yaml
>> +++ b/Documentation/devicetree/bindings/pci/mediatek,mt7621-pcie.yaml
>> @@ -14,7 +14,7 @@ description: |+
>>    with 3 Root Ports. Each Root Port supports a Gen1 1-lane Link
>>  
>>  allOf:
>> -  - $ref: /schemas/pci/pci-bus.yaml#
>> +  - $ref: /schemas/pci/pci-host-bridge.yaml#
>>  
>>  properties:
>>    compatible:
>> @@ -33,7 +33,7 @@ properties:
>>  patternProperties:
>>    '^pcie@[0-2],0$':
>>      type: object
>> -    $ref: /schemas/pci/pci-bus.yaml#
>> +    $ref: /schemas/pci/pci-host-bridge.yaml#
> 
> I think this one should be pci-pci-bridge.yaml instead since it says 
> these are root ports and based on the unit-address here.

I was thinking about this as well, but pci-pci-bridge.yaml defines
compatible which is not present here at all. Since you suggest pci-pci,
I'll go with this and make it a separate patch for easier review.

Best regards,
Krzysztof





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