linux-kernel - Re: [PATCH] pinctrl: meson: amlogic-a4: mark the GPIO controller as sleeping

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Message-ID: <CAFBinCAZsHfYcRO4P84E6wes9rPw07Cf0h+4zS4KkbVB8vhkUQ@mail.gmail.com>
Date: Tue, 6 Jan 2026 09:57:52 +0100
From: Martin Blumenstingl <martin.blumenstingl@...glemail.com>
To: Bartosz Golaszewski <bartosz.golaszewski@....qualcomm.com>
Cc: Linus Walleij <linusw@...nel.org>, Neil Armstrong <neil.armstrong@...aro.org>, 
	Kevin Hilman <khilman@...libre.com>, Jerome Brunet <jbrunet@...libre.com>, 
	Bartosz Golaszewski <brgl@...nel.org>, linux-gpio@...r.kernel.org, 
	linux-arm-kernel@...ts.infradead.org, linux-amlogic@...ts.infradead.org, 
	linux-kernel@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH] pinctrl: meson: amlogic-a4: mark the GPIO controller as sleeping

On Tue, Jan 6, 2026 at 9:53 AM Bartosz Golaszewski
<bartosz.golaszewski@....qualcomm.com> wrote:
>
> The GPIO controller is configured as non-sleeping but it uses generic
> pinctrl helpers which use a mutex for synchronization. This will cause
> lockdep splats when used together with shared GPIOs going through the
> GPIO shared proxy driver.
>
> Fixes: 6e9be3abb78c ("pinctrl: Add driver support for Amlogic SoCs")
> Cc: stable@...r.kernel.org
> Reported-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>
> Closes: https://lore.kernel.org/all/CAFBinCAc7CO8gfNQakCu3LfkYXuyTd2iRpMRm8EKXSL0mwOnJw@mail.gmail.com/
> Signed-off-by: Bartosz Golaszewski <bartosz.golaszewski@....qualcomm.com>
Reviewed-by: Martin Blumenstingl <martin.blumenstingl@...glemail.com>