On Fri, Jan 9, 2026 at 10:35 AM Linus Walleij [off-list ref] wrote:

On Tue, Jan 6, 2026 at 9:53 AM Bartosz Golaszewski
[off-list ref] wrote:

quoted

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.

BTW it is a very *welcome* side-effect of the new shared GPIO rework
that it just happens to find these old bugs, I'm very pleased with this :)

Actually, I was surprised I was getting so many bug reports and then
it turned out, there was a bug that caused a lot of false-positives to
turn up when scanning the devicetree for shared pins. I just queued a
fix for that so it should slow down now.

Bart