linux-kernel - Re: [PATCH V1 1/2] dt-bindings: PCI: tegra234: Add ECAM support

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Message-ID: <4579404d-b3f7-8342-6704-2644f5cd489d@linaro.org>
Date:   Thu, 27 Oct 2022 17:18:53 -0400
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Vidya Sagar <vidyas@...dia.com>, robh+dt@...nel.org,
        krzysztof.kozlowski+dt@...aro.org, thierry.reding@...il.com,
        jonathanh@...dia.com, mperttunen@...dia.com
Cc:     devicetree@...r.kernel.org, linux-tegra@...r.kernel.org,
        linux-kernel@...r.kernel.org, kthota@...dia.com,
        mmaddireddy@...dia.com, sagar.tv@...il.com
Subject: Re: [PATCH V1 1/2] dt-bindings: PCI: tegra234: Add ECAM support

On 27/10/2022 01:12, Vidya Sagar wrote:
> Add support for ECAM aperture for Tegra234.
> 
> Signed-off-by: Vidya Sagar <vidyas@...dia.com>
> ---
>  .../devicetree/bindings/pci/nvidia,tegra194-pcie.yaml  | 10 ++++++++--
>  .../devicetree/bindings/pci/snps,dw-pcie.yaml          |  2 +-
>  2 files changed, 9 insertions(+), 3 deletions(-)
> 
> diff --git a/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.yaml b/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.yaml
> index 75da3e8eecb9..15cc2d2055bb 100644
> --- a/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.yaml
> +++ b/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie.yaml
> @@ -27,6 +27,7 @@ properties:
>        - nvidia,tegra234-pcie
>  
>    reg:
> +    minItems: 4
>      items:
>        - description: controller's application logic registers
>        - description: configuration registers
> @@ -35,13 +36,17 @@ properties:
>            available for software access.
>        - description: aperture where the Root Port's own configuration
>            registers are available.
> +      - description: aperture to access the configuration space through ECAM.
> +          This is applicable only for Tegra234.

Then restrict it per compatible in allOf

>  

Best regards,
Krzysztof