linux-kernel - Re: [PATCH] of/irq: Add a quirk for controllers with their own definition of interrupt-map

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Date:   Tue, 23 Nov 2021 08:33:11 +0000
From:   Marc Zyngier <maz@...nel.org>
To:     Geert Uytterhoeven <geert@...ux-m68k.org>
Cc:     linux-kernel@...r.kernel.org, devicetree@...r.kernel.org,
        kernel-team@...roid.com, Rob Herring <robh@...nel.org>,
        John Crispin <john@...ozen.org>, Biwen Li <biwen.li@....com>,
        Chris Brandt <chris.brandt@...esas.com>,
        linux-renesas-soc@...r.kernel.org
Subject: Re: [PATCH] of/irq: Add a quirk for controllers with their own definition of interrupt-map

On Tue, 23 Nov 2021 07:57:48 +0000,
Geert Uytterhoeven <geert@...ux-m68k.org> wrote:

Hi Geert,

[...]

> Summarized:
>   - Before the bad commit, and after your fix, irqc-rza1 is invoked,
>     and the number of interrupts seen is correct, but input events
>     are doubled.
>   - After the bad commit, irqc-rza1 is not invoked, and there is an
>     interrupt storm, but input events are OK.

OK, that's reassuring, even if the "twice the events" stuff isn't what
you'd expect. We at least know this is a separate issue, and that this
patch on top of -rc1 brings you back to the 5.15 behaviour.

I'd expect it to be the case for the other platforms as well.

Thanks,

	M.

-- 
Without deviation from the norm, progress is not possible.