On Fri, Jan 9, 2026 at 10:35 AM Linus Walleij linusw@kernel.org wrote:
On Tue, Jan 6, 2026 at 9:53 AM Bartosz Golaszewski bartosz.golaszewski@oss.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.
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