Date:   Tue, 23 Nov 2021 08:33:11 +0000
Message-ID: <87tug3clvc.wl-maz@kernel.org>
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
In-Reply-To: <CAMuHMdWJhnXabKGpW7k944dzQHtwQtxw-yb2bRBsoaMw6N6nuA@mail.gmail.com>
References: <20211122103032.517923-1-maz@kernel.org>
        <CAMuHMdX2ZRvDYA3idmw3nBcP6CO=2od6ZU-UeJo9vYsuB=fQNQ@mail.gmail.com>
        <8735no70tt.wl-maz@kernel.org>
        <CAMuHMdVS67BLP2XEdD6ZvVBVE2x11gKnQa1TqG659HXPM5scqQ@mail.gmail.com>
        <CAMuHMdWJhnXabKGpW7k944dzQHtwQtxw-yb2bRBsoaMw6N6nuA@mail.gmail.com>
User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue)
 FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/27.1
 (x86_64-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO)
MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue")
Content-Type: text/plain; charset=US-ASCII
Precedence: bulk

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.