linux-kernel - RE: [PATCH v3 05/11] dt-bindings: pci: layerscape-pci: add compatible strings for ls1088a and ls2088a

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Date:   Tue, 3 Sep 2019 01:33:47 +0000
From:   Xiaowei Bao <xiaowei.bao@....com>
To:     Andrew Murray <andrew.murray@....com>
CC:     "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "mark.rutland@....com" <mark.rutland@....com>,
        "shawnguo@...nel.org" <shawnguo@...nel.org>,
        Leo Li <leoyang.li@....com>, "kishon@...com" <kishon@...com>,
        "lorenzo.pieralisi@....com" <lorenzo.pieralisi@....com>,
        "M.h. Lian" <minghuan.lian@....com>,
        Mingkai Hu <mingkai.hu@....com>, Roy Zang <roy.zang@....com>,
        "jingoohan1@...il.com" <jingoohan1@...il.com>,
        "gustavo.pimentel@...opsys.com" <gustavo.pimentel@...opsys.com>,
        "linux-pci@...r.kernel.org" <linux-pci@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "linux-arm-kernel@...ts.infradead.org" 
        <linux-arm-kernel@...ts.infradead.org>,
        "linuxppc-dev@...ts.ozlabs.org" <linuxppc-dev@...ts.ozlabs.org>,
        "arnd@...db.de" <arnd@...db.de>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "Z.q. Hou" <zhiqiang.hou@....com>
Subject: RE: [PATCH v3 05/11] dt-bindings: pci: layerscape-pci: add compatible
 strings for ls1088a and ls2088a



> -----Original Message-----
> From: Andrew Murray <andrew.murray@....com>
> Sent: 2019年9月2日 20:32
> To: Xiaowei Bao <xiaowei.bao@....com>
> Cc: robh+dt@...nel.org; mark.rutland@....com; shawnguo@...nel.org; Leo
> Li <leoyang.li@....com>; kishon@...com; lorenzo.pieralisi@....com; M.h.
> Lian <minghuan.lian@....com>; Mingkai Hu <mingkai.hu@....com>; Roy
> Zang <roy.zang@....com>; jingoohan1@...il.com;
> gustavo.pimentel@...opsys.com; linux-pci@...r.kernel.org;
> devicetree@...r.kernel.org; linux-kernel@...r.kernel.org;
> linux-arm-kernel@...ts.infradead.org; linuxppc-dev@...ts.ozlabs.org;
> arnd@...db.de; gregkh@...uxfoundation.org; Z.q. Hou
> <zhiqiang.hou@....com>
> Subject: Re: [PATCH v3 05/11] dt-bindings: pci: layerscape-pci: add compatible
> strings for ls1088a and ls2088a
> 
> On Mon, Sep 02, 2019 at 11:17:10AM +0800, Xiaowei Bao wrote:
> > Add compatible strings for ls1088a and ls2088a.
> >
> > Signed-off-by: Xiaowei Bao <xiaowei.bao@....com>
> > ---
> > v2:
> >  - No change.
> > v3:
> >  - Use one valid combination of compatible strings.
> >
> >  Documentation/devicetree/bindings/pci/layerscape-pci.txt | 4 +++-
> >  1 file changed, 3 insertions(+), 1 deletion(-)
> >
> > diff --git a/Documentation/devicetree/bindings/pci/layerscape-pci.txt
> > b/Documentation/devicetree/bindings/pci/layerscape-pci.txt
> > index e20ceaa..762ae41 100644
> > --- a/Documentation/devicetree/bindings/pci/layerscape-pci.txt
> > +++ b/Documentation/devicetree/bindings/pci/layerscape-pci.txt
> > @@ -22,7 +22,9 @@ Required properties:
> >          "fsl,ls1043a-pcie"
> >          "fsl,ls1012a-pcie"
> >    EP mode:
> > -	"fsl,ls1046a-pcie-ep", "fsl,ls-pcie-ep"
> > +	"fsl,ls1046a-pcie-ep" "fsl,ls-pcie-ep"
> > +	"fsl,ls1088a-pcie-ep" "fsl,ls-pcie-ep"
> > +	"fsl,ls2088a-pcie-ep" "fsl,ls-pcie-ep"
> 
> This isn't consistent with "[PATCH v3 09/11] PCI: layerscape: Add EP mode..."
> as that patch drops the fallback "fsl,ls-pcie-ep". Either the fallback must be
> preserved in the driver, or you need to drop it here.
> 
> What if there are existing users that depend on the fallback?
> 
> (I'm also not sure if that comma should have been dropped).

Hi Andrew,

Thanks for your comments, I lose the comma.

Thanks 
Xiaowei

> 
> Thanks,
> 
> Andrew Murray
> 
> >  - reg: base addresses and lengths of the PCIe controller register blocks.
> >  - interrupts: A list of interrupt outputs of the controller. Must contain an
> >    entry for each entry in the interrupt-names property.
> > --
> > 2.9.5
> >