Re: [PATCH 1/3] dt-bindings: mfd: da9062: add gpio bindings

[Linus Walleij <linus.walleij@xxxxxxxxxx>]

On Tue, Sep 24, 2019 at 12:53 PM Adam Thomson
<Adam.Thomson.Opensource@xxxxxxxxxxx> wrote:

> As mentioned for your other patch set where the regulator driver makes use of
> GPIOs for control, I think here you should probably have pinctrl to define
> alternate functions of each GPIO. It seems that mostly pinctrl drivers support
> GPIO functionality rather than the other way, so maybe that's the direction
> to go in? Maybe Linus has some input on this too.

Usually the both functions can coexist but the simplest if often to put
them in the same driver.

drivers/pinctrl/pinctrl-stmfx.c
Documentation/devicetree/bindings/pinctrl/pinctrl-stmfx.txt

is a recent slow bus driver doing this.

Yours,
Linus Walleij