linux-kernel - Re: [PATCH V3 04/11] dt-bindings: PCI: tegra234: Add schema for tegra234 endpoint mode

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Date:   Wed, 29 Jun 2022 08:33:19 +0200
From:   Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
To:     Vidya Sagar <vidyas@...dia.com>, bhelgaas@...gle.com,
        lorenzo.pieralisi@....com, robh+dt@...nel.org,
        thierry.reding@...il.com, jonathanh@...dia.com
Cc:     kishon@...com, vkoul@...nel.org, kw@...ux.com,
        p.zabel@...gutronix.de, mperttunen@...dia.com,
        linux-pci@...r.kernel.org, devicetree@...r.kernel.org,
        linux-tegra@...r.kernel.org, linux-kernel@...r.kernel.org,
        linux-phy@...ts.infradead.org, kthota@...dia.com,
        mmaddireddy@...dia.com, sagar.tv@...il.com
Subject: Re: [PATCH V3 04/11] dt-bindings: PCI: tegra234: Add schema for
 tegra234 endpoint mode

On 29/06/2022 08:04, Vidya Sagar wrote:
> Add support for PCIe controllers that operate in the endpoint mode
> in tegra234 chipset.
> 
> Signed-off-by: Vidya Sagar <vidyas@...dia.com>
> ---
> V3:
> * New patch in this series
> 
>  .../bindings/pci/nvidia,tegra194-pcie-ep.yaml | 141 +++++++++++++++++-
>  1 file changed, 136 insertions(+), 5 deletions(-)
> 

All comments from patch #3 apply.

> diff --git a/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie-ep.yaml b/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie-ep.yaml
> index 4f7cb7fe378e..11778eb92c47 100644
> --- a/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie-ep.yaml
> +++ b/Documentation/devicetree/bindings/pci/nvidia,tegra194-pcie-ep.yaml
> @@ -17,6 +17,7 @@ description: |
>    in they can work either in root port mode or endpoint mode but one at a time.
>  
>    On Tegra194, controllers C0, C4 and C5 support endpoint mode.
> +  On Tegra234, controllers C5, C6, C7 and C10 support endpoint mode.
>  
>    Note: On Tegra194's P2972-0000 platform, only C5 controller can be enabled to operate in the
>    endpoint mode because of the way the platform is designed.
> @@ -25,6 +26,7 @@ properties:
>    compatible:
>      enum:
>        - nvidia,tegra194-pcie-ep
> +      - nvidia,tegra234-pcie-ep
>  
>    reg:

(...)

> +  - if:
> +      properties:
> +        compatible:
> +          contains:
> +            enum:
> +              - nvidia,tegra234-pcie
> +    then:
> +      properties:
> +        nvidia,bpmp:
> +          items:
> +            - items:
> +                - minimum: 0
> +                  maximum: 0xffffffff
> +                - enum: [ 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10 ]
> +
>  unevaluatedProperties: false
>  
>  required:
> @@ -174,6 +245,7 @@ required:
>    - power-domains
>    - reset-gpios
>    - num-lanes
> +  - vddio-pex-ctl-supply

This is unexpected and looks unrelated.


Best regards,
Krzysztof