Re: [PATCH] gpio: ml-ioh: share the register lock across channels

Linus Walleij <[email protected]>
Newsgroups org.kernel.vger.linux-gpio,dev.linux.lists.sashiko-reviews,org.kernel.vger.linux-kernel
Message-ID <CAD++jLnrXp0ACwyR7kenvJxLegyn+Owa2WvadXe=0e1ZDG_yYg@mail.gmail.com> 
On Tue, Aug 4, 2026 at 12:00 PM Junjie Cao <[email protected]> wrote:

> Suspend and resume hold channel 0's lock while saving and restoring
> registers for all eight channels. Code paths using the other seven locks
> can therefore run concurrently with PM.
>
> Use one controller-wide lock shared by all channels.
>
> Fixes: b490fa0bf86e ("gpio-ml-ioh: Fix suspend/resume issue")
> Reported-by: sashiko-bot <[email protected]>
> Link: https://lore.kernel.org/r/[email protected]
> Signed-off-by: Junjie Cao <[email protected]>

Reviewed-by: Linus Walleij <[email protected]>

Yours,
Linus Walleij
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