linux-kernel - Re: [PATCH] pinctrl: bcm: fix kconfig dependency warning when !GPIOLIB

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Date:   Tue, 29 Sep 2020 14:59:42 +0200
From:   Linus Walleij <linus.walleij@...aro.org>
To:     Necip Fazil Yildiran <fazilyildiran@...il.com>
Cc:     "open list:GPIO SUBSYSTEM" <linux-gpio@...r.kernel.org>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        paul@...zz.com, jeho@...utexas.edu
Subject: Re: [PATCH] pinctrl: bcm: fix kconfig dependency warning when !GPIOLIB

On Mon, Sep 14, 2020 at 4:41 PM Necip Fazil Yildiran
<fazilyildiran@...il.com> wrote:

> When PINCTRL_BCM2835 is enabled and GPIOLIB is disabled, it results in the
> following Kbuild warning:
>
> WARNING: unmet direct dependencies detected for GPIOLIB_IRQCHIP
>   Depends on [n]: GPIOLIB [=n]
>   Selected by [y]:
>   - PINCTRL_BCM2835 [=y] && PINCTRL [=y] && OF [=y] && (ARCH_BCM2835 [=n] || ARCH_BRCMSTB [=n] || COMPILE_TEST [=y])
>
> The reason is that PINCTRL_BCM2835 selects GPIOLIB_IRQCHIP without
> depending on or selecting GPIOLIB while GPIOLIB_IRQCHIP is subordinate to
> GPIOLIB.
>
> Honor the kconfig menu hierarchy to remove kconfig dependency warnings.
>
> Fixes: 85ae9e512f43 ("pinctrl: bcm2835: switch to GPIOLIB_IRQCHIP")
> Signed-off-by: Necip Fazil Yildiran <fazilyildiran@...il.com>

Patch applied to non-critical fixes, thanks!

Yours,
Linus Walleij