linux-kernel - Re: [PATCH v4 04/17] dt-bindings: PCI: dwc: Add max-link-speed common property

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Date:   Mon, 1 Aug 2022 11:56:54 -0600
From:   Rob Herring <robh@...nel.org>
To:     Serge Semin <Sergey.Semin@...kalelectronics.ru>
Cc:     Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        linux-pci@...r.kernel.org, linux-kernel@...r.kernel.org,
        Krzysztof Wilczyński <kw@...ux.com>,
        Frank Li <Frank.Li@....com>, devicetree@...r.kernel.org,
        Alexey Malahov <Alexey.Malahov@...kalelectronics.ru>,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Jingoo Han <jingoohan1@...il.com>,
        Serge Semin <fancer.lancer@...il.com>,
        Pavel Parkhomenko <Pavel.Parkhomenko@...kalelectronics.ru>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Rob Herring <robh+dt@...nel.org>,
        Gustavo Pimentel <gustavo.pimentel@...opsys.com>
Subject: Re: [PATCH v4 04/17] dt-bindings: PCI: dwc: Add max-link-speed
 common property

On Thu, 28 Jul 2022 17:34:14 +0300, Serge Semin wrote:
> In accordance with [1] DW PCIe controllers support up to Gen5 link speed.
> Let's add the max-link-speed property upper bound to 5 then. The DT
> bindings of the particular devices are expected to setup more strict
> constraint on that parameter.
> 
> [1] Synopsys DesignWare Cores PCI Express Controller Databook, Version
> 5.40a, March 2019, p. 27
> 
> Signed-off-by: Serge Semin <Sergey.Semin@...kalelectronics.ru>
> 
> ---
> 
> Changelog v3:
> - This is a new patch unpinned from the next one:
>   https://lore.kernel.org/linux-pci/20220503214638.1895-2-Sergey.Semin@baikalelectronics.ru/
>   by the Rob' request. (@Rob)
> ---
>  Documentation/devicetree/bindings/pci/snps,dw-pcie-common.yaml | 3 +++
>  Documentation/devicetree/bindings/pci/snps,dw-pcie-ep.yaml     | 2 ++
>  Documentation/devicetree/bindings/pci/snps,dw-pcie.yaml        | 1 +
>  3 files changed, 6 insertions(+)
> 

Reviewed-by: Rob Herring <robh@...nel.org>