linux-kernel - Re: [PATCH] arm: dts: broadcom: Add missing required fields

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Message-ID: <CAEDjzLKZSb8JJXjpbC5tFa4hc7+wdz+v6esimmZuOuYt8tWJ6Q@mail.gmail.com>
Date: Sat, 28 Sep 2024 11:56:51 +0530
From: Karan Sanghavi <karansanghvi98@...il.com>
To: Florian Fainelli <florian.fainelli@...adcom.com>
Cc: Stefan Wahren <wahrenst@....net>, Rob Herring <robh@...nel.org>, 
	Krzysztof Kozlowski <krzk+dt@...nel.org>, Conor Dooley <conor+dt@...nel.org>, 
	Broadcom internal kernel review list <bcm-kernel-feedback-list@...adcom.com>, devicetree@...r.kernel.org, 
	linux-rpi-kernel@...ts.infradead.org, linux-arm-kernel@...ts.infradead.org, 
	linux-kernel@...r.kernel.org, Shuah Khan <skhan@...uxfoundation.org>, 
	Anup <anupnewsmail@...il.com>
Subject: Re: [PATCH] arm: dts: broadcom: Add missing required fields

On Thu, 26 Sept 2024 at 02:08, Florian Fainelli
<florian.fainelli@...adcom.com> wrote:
>
> On 9/25/24 09:39, Stefan Wahren wrote:
> > Hi Karan,
> >
> > Am 25.09.24 um 18:14 schrieb Karan Sanghavi:
> >> Added below mentioned required fields
> >>    1. interrupt-controller
> >>    2. #interrupt-cells
> >> in the bcm2711.dtsi file for the
> >> interrupt-controller@...00000 block as defined in the
> >> bindings/interrupt-controller/brcm,bcm2836-l1-intc.yaml.
> >> This issue was noticed while compiling the dtb file
> >> for broadcom/bcm2711-rpi-4-b.dts file.
> >> After including the above fields in the dtsi file
> >> interrupt-conntroller error was resolved.
> > looks like you made the same mistake like me [1]. This change breaks
> > boot of Raspberry Pi 4 [2].
> >
> > There are a lot of DT schema warnings to fix, but this doesn't belong to
> > the trivial ones.
>
> Including the #interrupt-cells would not have a functional impact
> however, and we ought to be able to do that.
>
> The 'interrupt-controller' property presence means that the controller
> will be picked up by of_irq_init() and that is was causes problems for
> people testing this. Stefan, do you know if the VPU firmware
> removes/inserts that property to tell Linux which interrupt controller
> (bcm2836-l1-intc or ARM GIC) to use or does it make use of the "status"
> property which would be the canonical way about doing that?
>
> Thanks!
> --
> Florian

Hello Florian,

So should I send a patch with only #interrupt-cells to solve one problem?

Thank you.