linux-kernel - Re: [PATCH] dt-bindings: PCI: mediatek-gen3: Add support for MT8195

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Message-ID: <9aa2ff56984f2d80152e4800a71cb7f71d0e1203.camel@mediatek.com>
Date:   Wed, 25 Aug 2021 05:23:48 +0000
From:   Jianjun Wang (王建军) 
        <Jianjun.Wang@...iatek.com>
To:     "robh@...nel.org" <robh@...nel.org>
CC:     "linux-mediatek@...ts.infradead.org" 
        <linux-mediatek@...ts.infradead.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "matthias.bgg@...il.com" <matthias.bgg@...il.com>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "bhelgaas@...gle.com" <bhelgaas@...gle.com>,
        Ryder Lee (李庚諺) <Ryder.Lee@...iatek.com>,
        TingHan Shen (沈廷翰) 
        <TingHan.Shen@...iatek.com>,
        Rex-BC Chen (陳柏辰) 
        <Rex-BC.Chen@...iatek.com>
Subject: Re: [PATCH] dt-bindings: PCI: mediatek-gen3: Add support for MT8195

On Tue, 2021-08-24 at 09:40 -0500, Rob Herring wrote:
> 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.

Hi Rob,

Thanks for your review.

Yes, the controller driver works fine in the MT8195 platform without
any change, and we would like to use the compatible string in device
tree as follows:

"mediatek,mt8195-pcie", "mediatek,mt8192-pcie"

Thanks.
> 
> > 
> > Signed-off-by: Jianjun Wang <jianjun.wang@...iatek.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
> > 
> > 
> 
> _______________________________________________
> Linux-mediatek mailing list
> Linux-mediatek@...ts.infradead.org
> http://lists.infradead.org/mailman/listinfo/linux-mediatek

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