[PATCH] mmc: mediatek: Add system suspend/resume interface

[Ulf Hansson]

On Thu, 3 Dec 2020 at 02:29, Nicolas Boichat <drinkcat at chromium.org> wrote:
>
> This causes a 0-day warning (on our chromeos-5.4 backports but I don't
> see why upstream would not be affected):
> https://groups.google.com/g/cros-kernel-buildreports/c/MfS3SInT5jg/m/Hkzxh_U7AwAJ
>
> Didn't look at the details of the config, but SET_SYSTEM_SLEEP_PM_OPS
> is a noop if CONFIG_PM_SLEEP is not set (while SET_RUNTIME_PM_OPS is
> noop-ed by CONFIG_PM).
>
> So I guess msdc_suspend/msdc_resume should be guarded by
> CONFIG_PM_SLEEP instead of CONFIG_PM.

Yep.

There is already a patch [1] in my queue for this. It uses the
_maybe_unused approach (Arnd prefers that and I don't mind).

[...]

Kind regards
Uffe

[1]
https://patchwork.kernel.org/project/linux-mediatek/patch/20201203222922.1067522-1-arnd@kernel.org/