netdev - Re: [RFC 6/9] dt-bindings: vendor-prefixes: add a PCI prefix for Qualcomm Atheros

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Message-ID: <rhs5bzjx3cljxa6xhlzlozmgi44tbohsqnznjhr3piz7ekv3ra@mi6yiljza5oe>
Date: Thu, 4 Jan 2024 15:49:21 +0100
From: Sebastian Reichel <sebastian.reichel@...labora.com>
To: Bartosz Golaszewski <brgl@...ev.pl>
Cc: Kalle Valo <kvalo@...nel.org>, 
	"David S . Miller" <davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, 
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, 
	Rob Herring <robh+dt@...nel.org>, Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>, 
	Conor Dooley <conor+dt@...nel.org>, Bjorn Andersson <andersson@...nel.org>, 
	Konrad Dybcio <konrad.dybcio@...aro.org>, Catalin Marinas <catalin.marinas@....com>, 
	Will Deacon <will@...nel.org>, Bjorn Helgaas <bhelgaas@...gle.com>, 
	Heiko Stuebner <heiko@...ech.de>, Jernej Skrabec <jernej.skrabec@...il.com>, 
	Chris Morgan <macromorgan@...mail.com>, Linus Walleij <linus.walleij@...aro.org>, 
	Geert Uytterhoeven <geert+renesas@...der.be>, Arnd Bergmann <arnd@...db.de>, 
	Neil Armstrong <neil.armstrong@...aro.org>, 
	Nícolas F . R . A . Prado <nfraprado@...labora.com>, Marek Szyprowski <m.szyprowski@...sung.com>, 
	Peng Fan <peng.fan@....com>, Robert Richter <rrichter@....com>, 
	Dan Williams <dan.j.williams@...el.com>, Jonathan Cameron <Jonathan.Cameron@...wei.com>, 
	Terry Bowman <terry.bowman@....com>, 
	Kuppuswamy Sathyanarayanan <sathyanarayanan.kuppuswamy@...ux.intel.com>, Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>, 
	Huacai Chen <chenhuacai@...nel.org>, Alex Elder <elder@...aro.org>, 
	Srini Kandagatla <srinivas.kandagatla@...aro.org>, Greg Kroah-Hartman <gregkh@...uxfoundation.org>, 
	linux-wireless@...r.kernel.org, netdev@...r.kernel.org, devicetree@...r.kernel.org, 
	linux-kernel@...r.kernel.org, linux-arm-msm@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org, linux-pci@...r.kernel.org, 
	Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
Subject: Re: [RFC 6/9] dt-bindings: vendor-prefixes: add a PCI prefix for
 Qualcomm Atheros

Hi,

On Thu, Jan 04, 2024 at 02:01:20PM +0100, Bartosz Golaszewski wrote:
> From: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> 
> Document the PCI vendor prefix for Qualcomm Atheros so that we can
> define the QCA PCI devices on device tree.
> 
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@...aro.org>
> ---
>  Documentation/devicetree/bindings/vendor-prefixes.yaml | 1 +
>  1 file changed, 1 insertion(+)
> 
> diff --git a/Documentation/devicetree/bindings/vendor-prefixes.yaml b/Documentation/devicetree/bindings/vendor-prefixes.yaml
> index 2dc098b39234..297d6037cd12 100644
> --- a/Documentation/devicetree/bindings/vendor-prefixes.yaml
> +++ b/Documentation/devicetree/bindings/vendor-prefixes.yaml
> @@ -1128,6 +1128,7 @@ patternProperties:
>    "^purism,.*":
>      description: Purism, SPC
>    "^qca,.*":
> +  "^pci17cb,.*":

I don't think it's a good idea to list all the PCI vendor IDs
in vendor-prefixes.yaml. To please the tooling, I suggest to
have a generic entry instead. Something like this (untested):

"^pci[0-9a-f][0-9a-f][0-9a-f][0-9a-f],.*":
  description: PCI SIG Vendor ID

Note, that we we already have a bunch of them:

grep -ho 'pci[0-9a-f][0-9a-f][0-9a-f][0-9a-f],' **/*.dts* | sort | uniq -c
     70 pci0014,
      3 pci10b5,
      1 pci10ee,
      6 pci14e4,
      1 pci16c3,
      2 pci17a0,
      1 pci17cb,
      1 pci1b4b,
     63 pci8086,

Greetings,

-- Sebastian

>      description: Qualcomm Atheros, Inc.
>    "^qcom,.*":
>      description: Qualcomm Technologies, Inc
> -- 
> 2.40.1
> 
> 

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