Messages in this thread | | | From | Linus Walleij <> | Date | Mon, 20 Mar 2023 11:05:06 +0100 | Subject | Re: [PATCH] pinctrl: amd: Disable and mask interrupts on resume |
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On Mon, Mar 20, 2023 at 10:33 AM Kornel Dulęba <korneld@chromium.org> wrote:
> This fixes a similar problem to the one observed in: > commit 4e5a04be88fe ("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. > > Signed-off-by: Kornel Dulęba <korneld@chromium.org>
Uh oh this looks serious. Do we need a Fixes: tag and Cc: stable on this patch?
Yours, Linus Walleij
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