Re: [PATCH] pinctrl: lochnagar: select GPIOLIB

[Linus Walleij <linus.walleij@xxxxxxxxxx>]

On Wed, Dec 18, 2019 at 5:37 PM Arnd Bergmann <arnd@xxxxxxxx> wrote:

> In a rare randconfig build I came across one configuration that does
> not enable CONFIG_GPIOLIB, which is needed by lochnagar:
>
> ERROR: "devm_gpiochip_add_data" [drivers/pinctrl/cirrus/pinctrl-lochnagar.ko] undefined!
> ERROR: "gpiochip_generic_free" [drivers/pinctrl/cirrus/pinctrl-lochnagar.ko] undefined!
> ERROR: "gpiochip_generic_request" [drivers/pinctrl/cirrus/pinctrl-lochnagar.ko] undefined!
> ERROR: "gpiochip_get_data" [drivers/pinctrl/cirrus/pinctrl-lochnagar.ko] undefined!
>
> Add another 'select' like all other pinctrl drivers have.
>
> Fixes: 0548448b719a ("pinctrl: lochnagar: Add support for the Cirrus Logic Lochnagar")
> Signed-off-by: Arnd Bergmann <arnd@xxxxxxxx>

Patch applied!

> I wonder if GPIOLIB should just become mandatory when enabling the pinctrl
> subsystem, or if there are still good reasons for leaving it disabled
> on any machine that uses CONFIG_PINCTRL.

Hm that is a tricky question, they almost always come in pair but are
technically speaking separate subsystems.

I have a (very) long-term plan to merge them at some point before
I retire :D

Yours,
Linus Walleij