linux-kernel - RE: [RFC PATCH v2 1/6] Documentation: DT: Add entry for CDX controller

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Message-ID: <DM6PR12MB3082867B1BDCBBC9C25F560EE87E9@DM6PR12MB3082.namprd12.prod.outlook.com>
Date:   Tue, 6 Sep 2022 07:03:07 +0000
From:   "Gupta, Nipun" <Nipun.Gupta@....com>
To:     Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>,
        "robh+dt@...nel.org" <robh+dt@...nel.org>,
        "krzysztof.kozlowski+dt@...aro.org" 
        <krzysztof.kozlowski+dt@...aro.org>,
        "gregkh@...uxfoundation.org" <gregkh@...uxfoundation.org>,
        "rafael@...nel.org" <rafael@...nel.org>,
        "eric.auger@...hat.com" <eric.auger@...hat.com>,
        "alex.williamson@...hat.com" <alex.williamson@...hat.com>,
        "cohuck@...hat.com" <cohuck@...hat.com>,
        "Gupta, Puneet (DCG-ENG)" <puneet.gupta@....com>,
        "song.bao.hua@...ilicon.com" <song.bao.hua@...ilicon.com>,
        "mchehab+huawei@...nel.org" <mchehab+huawei@...nel.org>,
        "maz@...nel.org" <maz@...nel.org>,
        "f.fainelli@...il.com" <f.fainelli@...il.com>,
        "jeffrey.l.hugo@...il.com" <jeffrey.l.hugo@...il.com>,
        "saravanak@...gle.com" <saravanak@...gle.com>,
        "Michael.Srba@...nam.cz" <Michael.Srba@...nam.cz>,
        "mani@...nel.org" <mani@...nel.org>,
        "yishaih@...dia.com" <yishaih@...dia.com>,
        "jgg@...pe.ca" <jgg@...pe.ca>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "devicetree@...r.kernel.org" <devicetree@...r.kernel.org>,
        "kvm@...r.kernel.org" <kvm@...r.kernel.org>
CC:     "okaya@...nel.org" <okaya@...nel.org>,
        "Anand, Harpreet" <harpreet.anand@....com>,
        "Agarwal, Nikhil" <nikhil.agarwal@....com>,
        "Simek, Michal" <michal.simek@....com>,
        "git (AMD-Xilinx)" <git@....com>
Subject: RE: [RFC PATCH v2 1/6] Documentation: DT: Add entry for CDX
 controller

[AMD Official Use Only - General]



> -----Original Message-----
> From: Krzysztof Kozlowski <krzysztof.kozlowski@...aro.org>
> Sent: Tuesday, September 6, 2022 12:25 PM
> To: Gupta, Nipun <Nipun.Gupta@....com>; robh+dt@...nel.org;
> krzysztof.kozlowski+dt@...aro.org; gregkh@...uxfoundation.org;
> rafael@...nel.org; eric.auger@...hat.com; alex.williamson@...hat.com;
> cohuck@...hat.com; Gupta, Puneet (DCG-ENG)
> <puneet.gupta@....com>; song.bao.hua@...ilicon.com;
> mchehab+huawei@...nel.org; maz@...nel.org; f.fainelli@...il.com;
> jeffrey.l.hugo@...il.com; saravanak@...gle.com;
> Michael.Srba@...nam.cz; mani@...nel.org; yishaih@...dia.com;
> jgg@...pe.ca; linux-kernel@...r.kernel.org; devicetree@...r.kernel.org;
> kvm@...r.kernel.org
> Cc: okaya@...nel.org; Anand, Harpreet <harpreet.anand@....com>;
> Agarwal, Nikhil <nikhil.agarwal@....com>; Simek, Michal
> <michal.simek@....com>; git (AMD-Xilinx) <git@....com>
> Subject: Re: [RFC PATCH v2 1/6] Documentation: DT: Add entry for CDX
> controller
> 
> [CAUTION: External Email]
> 
> On 05/09/2022 16:05, Gupta, Nipun wrote:
> >>> +
> >>> +    cdxbus: cdxbus@@4000000 {
> >>
> >> Node names should be generic, so "cdx"
> >
> > Would be using bus: cdxbus@...0000.
> > Kindly correct me if this does not seem to be correct.
> 
> I don't understand it. I asked to change cdxbus to cdx, but you said you
> will be using "bus" and "cdxbus"? So what exactly are you going to use?
> And how does it match generic node name recommendation?

I was also confused with the name suggestion as in one of the mail you
sent out later, you mentioned:
" Eh, too fast typing, obviously the other part of the name... node names
should be generic, so just "bus"."

That is why needed to confirm. To me now "cdx: cdx@...0000" makes sense.
Hope this seems correct?

Regards,
Nipun

> 
> https://nam11.safelinks.protection.outlook.com/?url=https%3A%2F%2Fdevi
> cetree-specification.readthedocs.io%2Fen%2Flatest%2Fchapter2-
> devicetree-basics.html%23generic-names-
> recommendation&amp;data=05%7C01%7CNipun.Gupta%40amd.com%7C4a
> e1b96c542949574f3a08da8fd4c64d%7C3dd8961fe4884e608e11a82d994e183d
> %7C0%7C0%7C637980441269905225%7CUnknown%7CTWFpbGZsb3d8eyJWIj
> oiMC4wLjAwMDAiLCJQIjoiV2luMzIiLCJBTiI6Ik1haWwiLCJXVCI6Mn0%3D%7C3
> 000%7C%7C%7C&amp;sdata=pA0kWXNJGQw9y5zLNNXpfRMjH1i2QRM%2FK
> YsNk0C%2FCQM%3D&amp;reserved=0
> 
> Do you see any other buses named "xxxbus"?
> 
> Best regards,
> Krzysztof