linux-kernel - Re: [PATCH v3 05/12] PCI: of_property: Assign PCI instead of CPU bus address to dynamic bridge nodes

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Message-ID: <20241104090623.53f73d75@bootlin.com>
Date: Mon, 4 Nov 2024 09:06:23 +0100
From: Herve Codina <herve.codina@...tlin.com>
To: Andrea della Porta <andrea.porta@...e.com>
Cc: Michael Turquette <mturquette@...libre.com>, Stephen Boyd
 <sboyd@...nel.org>, Rob Herring <robh@...nel.org>, Krzysztof Kozlowski
 <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, Florian Fainelli
 <florian.fainelli@...adcom.com>, Broadcom internal kernel review list
 <bcm-kernel-feedback-list@...adcom.com>, Lorenzo Pieralisi
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 Sadhasivam <manivannan.sadhasivam@...aro.org>, Bjorn Helgaas
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 Cvetic <dragan.cvetic@....com>, Arnd Bergmann <arnd@...db.de>, Greg
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 <saravanak@...gle.com>, linux-clk@...r.kernel.org,
 devicetree@...r.kernel.org, linux-rpi-kernel@...ts.infradead.org,
 linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org,
 linux-pci@...r.kernel.org, linux-gpio@...r.kernel.org, Masahiro Yamada
 <masahiroy@...nel.org>, Stefan Wahren <wahrenst@....net>, Luca Ceresoli
 <luca.ceresoli@...tlin.com>, Thomas Petazzoni
 <thomas.petazzoni@...tlin.com>, Andrew Lunn <andrew@...n.ch>
Subject: Re: [PATCH v3 05/12] PCI: of_property: Assign PCI instead of CPU
 bus address to dynamic bridge nodes

Hi Andrea,

On Mon, 28 Oct 2024 15:07:22 +0100
Andrea della Porta <andrea.porta@...e.com> wrote:

> When populating "ranges" property for a PCI bridge, of_pci_prop_ranges()
> incorrectly use the CPU bus address of the resource. Since this is a PCI-PCI
> bridge, the window should instead be in PCI address space. Call
> pci_bus_address() on the resource in order to obtain the PCI bus
> address.
> 
> Signed-off-by: Andrea della Porta <andrea.porta@...e.com>

Tested ok with my LAN966x PCI device.

Tested-by: Herve Codina <herve.codina@...tlin.com>

Best regards,
Hervé