pinctrl: amd: Disable and mask interrupts on resume

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This fixes a similar problem to the one observed in:
commit 4e5a04be88 ("pinctrl: amd: disable and mask interrupts on probe").

On some systems, during suspend/resume cycle firmware leaves
an interrupt enabled on a pin that is not used by the kernel.
This confuses the AMD pinctrl driver and causes spurious interrupts.

The driver already has logic to detect if a pin is used by the kernel.
Leverage it to re-initialize interrupt fields of a pin only if it's not
used by us.

Cc: stable@vger.kernel.org
Fixes: dbad75dd1f ("pinctrl: add AMD GPIO driver support.")
Signed-off-by: Kornel Dulęba <korneld@chromium.org>
Link: https://lore.kernel.org/r/20230320093259.845178-1-korneld@chromium.org
Signed-off-by: Linus Walleij <linus.walleij@linaro.org>

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This commit is contained in:

Kornel Dulęba 2023-03-20 09:32:59 +00:00 • committed by Linus Walleij

parent 913a956c43

commit b26cd9325b

1 changed files with 20 additions and 16 deletions

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drivers/pinctrl/pinctrl-amd.c

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