linux-kernel - Re: [PATCH] arm64: dts: imx8mm-venice: Fix PCI bus nodes

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Date:   Thu, 30 Nov 2023 16:33:19 -0600
From:   Rob Herring <robh@...nel.org>
To:     Fabio Estevam <festevam@...il.com>
Cc:     Krzysztof Kozlowski <krzysztof.kozlowski+dt@...aro.org>,
        Conor Dooley <conor+dt@...nel.org>,
        Shawn Guo <shawnguo@...nel.org>,
        Sascha Hauer <s.hauer@...gutronix.de>,
        Pengutronix Kernel Team <kernel@...gutronix.de>,
        NXP Linux Team <linux-imx@....com>,
        Tim Harvey <tharvey@...eworks.com>, devicetree@...r.kernel.org,
        linux-arm-kernel@...ts.infradead.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] arm64: dts: imx8mm-venice: Fix PCI bus nodes

On Thu, Nov 30, 2023 at 1:28 PM Fabio Estevam <festevam@...il.com> wrote:
>
> Hi Rob,
>
> On Thu, Nov 30, 2023 at 4:18 PM Rob Herring <robh@...nel.org> wrote:
> >
> > The imx8mm-venice boards PCI bus nodes are a complete mess. The
> > unit-addresses are wrong. The PCI bridge nodes are incomplete missing
> > "device_type" and "ranges" and just wrong for "#address-cells" and
> > "#size-cells" values.
> >
> > All of these issues are reported warnings if anyone bothered to pay
> > attention. Sigh.
>
> The warnings are gone in linux-next:
>
> https://git.kernel.org/pub/scm/linux/kernel/git/next/linux-next.git/commit/arch/arm64/boot/dts/freescale?h=next-20231130&id=d61c5068729a76a6183a897bcad4bf26e8d3d674

Linux-next is wrong. The ethernet device should have a node name of
'ethernet'. The 'pcie' node name and 'device_type = "pci"' is for PCI
buses/bridges only.

Rob