netdev - Re: [PATCH net-next v2 1/2] dt-bindings: net: airoha: npu: Add EN7581-7996 support

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Message-ID: <9340a82a-bae8-4ef6-9484-3d2842cf34aa@lunn.ch>
Date: Wed, 14 Jan 2026 18:47:46 +0100
From: Andrew Lunn <andrew@...n.ch>
To: Christian Marangi <ansuelsmth@...il.com>
Cc: Krzysztof Kozlowski <krzk@...nel.org>,
	Lorenzo Bianconi <lorenzo@...nel.org>,
	Andrew Lunn <andrew+netdev@...n.ch>,
	"David S. Miller" <davem@...emloft.net>,
	Eric Dumazet <edumazet@...gle.com>,
	Jakub Kicinski <kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>,
	Rob Herring <robh@...nel.org>,
	Krzysztof Kozlowski <krzk+dt@...nel.org>,
	Conor Dooley <conor+dt@...nel.org>, netdev@...r.kernel.org,
	devicetree@...r.kernel.org, linux-arm-kernel@...ts.infradead.org,
	linux-mediatek@...ts.infradead.org
Subject: Re: [PATCH net-next v2 1/2] dt-bindings: net: airoha: npu: Add
 EN7581-7996 support

On Wed, Jan 14, 2026 at 05:29:28PM +0100, Christian Marangi wrote:
> On Wed, Jan 14, 2026 at 04:56:02PM +0100, Andrew Lunn wrote:
> > > > Yes. What you plug into PCI is not a part of this hardware, so cannot be
> > > > part of the compatible.
> > > > 
> > > 
> > > Thanks for the quick response. Just to make sure Lorenzo doesn't get
> > > confused, I guess a v3 would be sending v1 again (firmware-names
> > > implementation series) with the review tag and we should be done with
> > > this.
> > 
> > Since this is a PCI device, you can ask it what it is, and then load
> > the correct firmware based on the PCI vendor:product. You don't need
> > to describe the hardware in DT because it is enumerable.
> > 
> 
> Hi Andrew,
> 
> I think it's problematic to create a bind between the NPU and
> PCIe.

But the NPU must already be bound to PCIe. How else does it know which
PCIe slot the WiFi card is on, so it can make use of it?

     Andrew