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Date:   Tue, 24 Aug 2021 09:40:19 -0500
From:   Rob Herring <robh@kernel.org>
To:     Jianjun Wang <jianjun.wang@mediatek.com>
Cc:     Bjorn Helgaas <bhelgaas@google.com>,
        Matthias Brugger <matthias.bgg@gmail.com>,
        Ryder Lee <ryder.lee@mediatek.com>, linux-pci@vger.kernel.org,
        linux-mediatek@lists.infradead.org, devicetree@vger.kernel.org,
        linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org,
        Rex-BC.Chen@mediatek.com, TingHan.Shen@mediatek.com
Subject: Re: [PATCH] dt-bindings: PCI: mediatek-gen3: Add support for MT8195
Message-ID: <YSUE08dgiGhFsjwH@robh.at.kernel.org>
References: <20210820023521.30716-1-jianjun.wang@mediatek.com>
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On Fri, Aug 20, 2021 at 10:35:21AM +0800, Jianjun Wang wrote:
> MT8195 is an ARM platform SoC which has the same PCIe IP with MT8192.

If it is the same, then 8192 should be a fallback compatible. 'The same' 
means the current driver for 8192 will work unchanged.

> 
> Signed-off-by: Jianjun Wang <jianjun.wang@mediatek.com>
> ---
>  Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml | 4 +++-
>  1 file changed, 3 insertions(+), 1 deletion(-)
> 
> diff --git a/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml b/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
> index 742206dbd965..dcebb1036207 100644
> --- a/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
> +++ b/Documentation/devicetree/bindings/pci/mediatek-pcie-gen3.yaml
> @@ -48,7 +48,9 @@ allOf:
>  
>  properties:
>    compatible:
> -    const: mediatek,mt8192-pcie
> +    oneOf:
> +      - const: mediatek,mt8192-pcie
> +      - const: mediatek,mt8195-pcie
>  
>    reg:
>      maxItems: 1
> -- 
> 2.18.0
> 
>