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Message-ID: <166811541565.1069420.11032822569415159193.robh@kernel.org>
Date:   Thu, 10 Nov 2022 15:23:37 -0600
From:   Rob Herring <robh@...nel.org>
To:     Serge Semin <Sergey.Semin@...kalelectronics.ru>
Cc:     Gustavo Pimentel <gustavo.pimentel@...opsys.com>,
        devicetree@...r.kernel.org, Rob Herring <robh+dt@...nel.org>,
        Alexey Malahov <Alexey.Malahov@...kalelectronics.ru>,
        Vinod Koul <vkoul@...nel.org>, Frank Li <Frank.Li@....com>,
        Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Bjorn Helgaas <bhelgaas@...gle.com>,
        Serge Semin <fancer.lancer@...il.com>,
        linux-kernel@...r.kernel.org,
        Pavel Parkhomenko <Pavel.Parkhomenko@...kalelectronics.ru>,
        Krzysztof WilczyƄski <kw@...ux.com>,
        linux-pci@...r.kernel.org, Robin Murphy <robin.murphy@....com>,
        Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>,
        Cai Huoqing <cai.huoqing@...ux.dev>,
        Lorenzo Pieralisi <lorenzo.pieralisi@....com>,
        Jingoo Han <jingoohan1@...il.com>,
        caihuoqing <caihuoqing@...du.com>
Subject: Re: [PATCH v6 11/20] dt-bindings: PCI: dwc: Add clocks/resets common
 properties


On Mon, 07 Nov 2022 23:49:25 +0300, Serge Semin wrote:
> DW PCIe RP/EP reference manuals explicit define all the clocks and reset
> requirements in [1] and [2]. Seeing the DW PCIe vendor-specific
> DT-bindings have already started assigning random names to the same set of
> the clocks and resets lines, let's define a generic names sets and add
> them to the DW PCIe common DT-schema.
> 
> Note since there are DW PCI-based vendor-specific DT-bindings with the
> custom names assigned to the same clocks and resets resources we have no
> much choice but to add them to the generic DT-schemas in order to have the
> schemas being applicable for such devices. These names are marked as
> vendor-specific and should be avoided being used in new bindings in favor
> of the generic names.
> 
> [1] Synopsys DesignWare Cores PCI Express Controller Databook - DWC PCIe
> Root Port, Version 5.40a, March 2019, p.55 - 78.
> [2] Synopsys DesignWare Cores PCI Express Controller Databook - DWC PCIe
> Endpoint, Version 5.40a, March 2019, p.58 - 81.
> 
> 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)
> - Drop synonymous from the names list since the device schemas create
>   their own enumerations anyway.
> 
> Changelog v5:
> - Add platform-specific clock/reset names, but mark them as deprecated.
> 
> Changelog v6:
> - Move the common *-names definitions to the RP/EP schemas. Thus drop
>   the 'definitions' property. (@Rob)
> - Drop the 'deprecated' keywords from the vendor-specific names. (@Rob)
> ---
>  .../bindings/pci/snps,dw-pcie-common.yaml     | 120 ++++++++++++++++++
>  .../bindings/pci/snps,dw-pcie-ep.yaml         |   6 +
>  .../devicetree/bindings/pci/snps,dw-pcie.yaml |   2 -
>  3 files changed, 126 insertions(+), 2 deletions(-)
> 

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

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