linux-kernel - Re: [PATCH 1/2] dt-bindings: PCI: brcm,stb-pcie: Add num-lanes property

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [<thread-prev] [thread-next>] [day] [month] [year] [list]

Message-ID: <CAL_JsqKrbCtiMdxCusBwX8-xewQbi1_X6V8rTN+2vfxh4e=Hjw@mail.gmail.com>
Date: Mon, 12 May 2025 10:00:49 -0500
From: Rob Herring <robh@...nel.org>
To: Jim Quinlan <james.quinlan@...adcom.com>
Cc: linux-pci@...r.kernel.org, Nicolas Saenz Julienne <nsaenz@...nel.org>, 
	Bjorn Helgaas <bhelgaas@...gle.com>, Lorenzo Pieralisi <lorenzo.pieralisi@....com>, 
	bcm-kernel-feedback-list@...adcom.com, jim2101024@...il.com, 
	Florian Fainelli <florian.fainelli@...adcom.com>, Lorenzo Pieralisi <lpieralisi@...nel.org>, 
	Krzysztof Wilczyński <kw@...ux.com>, 
	Manivannan Sadhasivam <manivannan.sadhasivam@...aro.org>, Krzysztof Kozlowski <krzk+dt@...nel.org>, 
	Conor Dooley <conor+dt@...nel.org>, 
	"moderated list:BROADCOM BCM7XXX ARM ARCHITECTURE" <linux-arm-kernel@...ts.infradead.org>, 
	"moderated list:BROADCOM BCM2711/BCM2835 ARM ARCHITECTURE" <linux-rpi-kernel@...ts.infradead.org>, 
	"open list:OPEN FIRMWARE AND FLATTENED DEVICE TREE BINDINGS" <devicetree@...r.kernel.org>, open list <linux-kernel@...r.kernel.org>
Subject: Re: [PATCH 1/2] dt-bindings: PCI: brcm,stb-pcie: Add num-lanes property

On Fri, May 9, 2025 at 5:28 PM Jim Quinlan <james.quinlan@...adcom.com> wrote:
>
> Add optional num-lanes property Broadcom STB PCIe host controllers.
>
> Signed-off-by: Jim Quinlan <james.quinlan@...adcom.com>
> ---
>  Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml | 2 ++
>  1 file changed, 2 insertions(+)
>
> diff --git a/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml b/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml
> index 29f0e1eb5096..f31d654ac3a0 100644
> --- a/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml
> +++ b/Documentation/devicetree/bindings/pci/brcm,stb-pcie.yaml
> @@ -107,6 +107,8 @@ properties:
>        - const: bridge
>        - const: swinit
>
> +  num-lanes: true

Why do you need this? It is already allowed by the referenced schemas.
Though maybe you don't support 16 lanes and need to limit this to
something less? I would also set 'default' if you do that.

Rob