[PATCH] pinctrl/rockchip: Don't call pinctrl_force_* for nothing

[Linus Walleij]

On Sat, Feb 24, 2018 at 9:07 PM, Marc Zyngier <marc.zyngier at arm.com> wrote:

> The rockchip pinctl driver calls pinctrl_force_default and
> pinctrl_force_sleep on suspend resume, but seems to expect
> that the outcome of these calls will be that nothing happens,
> as the core code checks whether we're already in the right
> state or not.
>
> Or at least, that was what the core code was doing until
> 981ed1bfbc ("pinctrl: Really force states during suspend/resume"),
> which gives the "force" qualifier its actual meaning.
>
> In turn, this breaks suspend/resume on the rk3399. So let's
> change the rockchip code to do what it should have done from
> the very begining, which is exactly *nothing*.
>
> We take this opportunity to tidy-up the RK3288 GPIO6_C6 mux
> resume workaround, making it symetrical to the suspend path.
>
> Tested on a rk3399-based kevin Chromebook.
>
> Fixes: 9198f509c888 ("pinctrl: rockchip: add suspend/resume functions")
> Signed-off-by: Marc Zyngier <marc.zyngier at arm.com>

I assume I should drop this patch for now and that
Dough's long DTS patch with the long explanation was the
right solution to the problem?

Yours,
Linus Walleij