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

From: Marc Zyngier <maz@kernel.org>
To: Geert Uytterhoeven <geert@linux-m68k.org>
Cc: linux-kernel@vger.kernel.org, devicetree@vger.kernel.org,
	kernel-team@android.com, Rob Herring <robh@kernel.org>,
	John Crispin <john@phrozen.org>, Biwen Li <biwen.li@nxp.com>,
	Chris Brandt <chris.brandt@renesas.com>,
	linux-renesas-soc@vger.kernel.org
Subject: Re: [PATCH] of/irq: Add a quirk for controllers with their own definition of interrupt-map
Date: Tue, 23 Nov 2021 08:33:11 +0000	[thread overview]
Message-ID: <87tug3clvc.wl-maz@kernel.org> (raw)
In-Reply-To: <CAMuHMdWJhnXabKGpW7k944dzQHtwQtxw-yb2bRBsoaMw6N6nuA@mail.gmail.com>

On Tue, 23 Nov 2021 07:57:48 +0000,
Geert Uytterhoeven <geert@linux-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.