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Date: Mon, 5 Sep 2022 13:54:54 +0000 From: "Gupta, Nipun" <Nipun.Gupta@....com> To: Saravana Kannan <saravanak@...gle.com>, Greg KH <gregkh@...uxfoundation.org> CC: "robh+dt@...nel.org" <robh+dt@...nel.org>, "krzysztof.kozlowski+dt@...aro.org" <krzysztof.kozlowski+dt@...aro.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>, "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>, "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 6/6] driver core: add compatible string in sysfs for platform devices [AMD Official Use Only - General] > -----Original Message----- > From: Saravana Kannan <saravanak@...gle.com> > Sent: Wednesday, August 17, 2022 9:34 PM > To: Greg KH <gregkh@...uxfoundation.org> > Cc: Gupta, Nipun <Nipun.Gupta@....com>; robh+dt@...nel.org; > krzysztof.kozlowski+dt@...aro.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; 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; 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 6/6] driver core: add compatible string in sysfs for > platform devices > > [CAUTION: External Email] > > On Wed, Aug 17, 2022 at 8:31 AM Greg KH <gregkh@...uxfoundation.org> > wrote: > > > > On Wed, Aug 17, 2022 at 08:35:42PM +0530, Nipun Gupta wrote: > > > This change adds compatible string for the platform based > > > devices. > > > > What exactly is a "compatible string"? > > Didn't read the rest of the patches in the series yet, but Nack to > this. This info is already available under: > > <device folder>/of_node/compatible for any device in any (or at least > most) bus that was created from an of_node. > > Unless compatible is now also in ACPI. In which case, it's probably be > better to have an of_node like symlink. We will not be going with platform devices for CDX bus and would rather have CDX devices: https://lore.kernel.org/lkml/DM6PR12MB30827577D50AB1B877458923E8799@DM6PR12MB3082.namprd12.prod.outlook.com/ So, this change is not valid for us. We would not be having this in Rev V3. - Nipun
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