Re: [PATCH] gpio: gpio-pca953x: do not enable regmap cache when there is no regulator

[Bartosz Golaszewski]

On Wed, Nov 27, 2024 at 8:15 AM <haibo.chen@xxxxxxx> wrote:
>
> From: Haibo Chen <haibo.chen@xxxxxxx>
>
> Regmap cache mechanism is enabled in default. Thus, IO expander wouldn't
> handle GPIO set really before resuming back.
>
> But there are cases need to toggle gpio in NO_IRQ stage.
> e.g. To align with PCIe specification, PERST# signal connected on the IO
> expander must be toggled during PCIe RC's NO_IRQ_RESUME.
>
> Do not enable the regmap cache when IO expander doesn't have the regulator
> during system PM. That means the power of IO expander would be kept on,
> and the GPIOs of the IO expander can be toggled really during system PM.
>
> Signed-off-by: Haibo Chen <haibo.chen@xxxxxxx>
> ---

The commit title should be: "gpio: pca953x: ..."

This description makes it sound like a fix, can you add a Fixes: tag?

Bart