Re: [PATCH v2 1/2] pinctrl: sunxi: Fix and simplify pin bank regulator handling

[Linus Walleij]

On Sun, Jan 13, 2019 at 10:57 AM Chen-Yu Tsai <wens@xxxxxxxx> wrote:

> The new per-pin-bank regulator handling code in the sunxi pinctrl driver
> has mismatched conditions for enabling and disabling the regulator: it
> is enabled each time a pin is requested, but only disabled when the
> pin-bank's reference count reaches zero.
>
> Since we are doing reference counting already, there's no need to enable
> the regulator each time a pin is requested. Instead we can just do it
> for the first requested pin of each pin-bank. Thus we can reverse the
> test and bail out early if it's not the first occurrence.
>
> Fixes: 9a2a566adb00 ("pinctrl: sunxi: Deal with per-bank regulators")
> Acked-by: Maxime Ripard <maxime.ripard@xxxxxxxxxxx>
> Signed-off-by: Chen-Yu Tsai <wens@xxxxxxxx>
> ---
> Changes since v1:
>
>   - Moved before the other fix. Both fixes are needed, but having this
>     one first made reworking the other one easier.

Patch applied for fixes.

Yours,
Linus Walleij