linux-kernel - Re: [PATCH] pinctrl: at91-pio4: use dedicated lock class for IRQ

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Message-ID: <CACRpkdZnPPHgRf+taFPOM4P0U+4w2LuAUyfgJuRtawVhFQWQkg@mail.gmail.com>
Date: Thu, 21 Dec 2023 09:06:13 +0100
From: Linus Walleij <linus.walleij@...aro.org>
To: Alexis Lothoré <alexis.lothore@...tlin.com>
Cc: Ludovic Desroches <ludovic.desroches@...rochip.com>, 
	Nicolas Ferre <nicolas.ferre@...rochip.com>, 
	Alexandre Belloni <alexandre.belloni@...tlin.com>, Claudiu Beznea <claudiu.beznea@...on.dev>, 
	Thomas Petazzoni <thomas.petazzoni@...tlin.com>, linux-arm-kernel@...ts.infradead.org, 
	linux-gpio@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] pinctrl: at91-pio4: use dedicated lock class for IRQ

On Fri, Dec 15, 2023 at 10:35 PM Alexis Lothoré
<alexis.lothore@...tlin.com> wrote:

> Trying to suspend to RAM on SAMA5D27 EVK leads to the following lockdep
> warning:
(...)
> Fix lockdep false positive by setting a different class for parent and
> children IRQ
>
> Fixes: 776180848b57 ("pinctrl: introduce driver for Atmel PIO4 controller")
> Signed-off-by: Alexis Lothoré <alexis.lothore@...tlin.com>

Patch applied for fixes.

Yours,
Linus Walleij