linux-kernel - Re: [PATCH v2] drivers: pinctrl: qcom: fix Kconfig dependency on GPIOLIB

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Date:   Tue, 13 Apr 2021 22:16:46 -0500
From:   Bjorn Andersson <bjorn.andersson@...aro.org>
To:     Julian Braha <julianbraha@...il.com>
Cc:     linus.walleij@...aro.org, linux-kernel@...r.kernel.org,
        linux-gpio@...r.kernel.org, linux-arm-msm@...r.kernel.org
Subject: Re: [PATCH v2] drivers: pinctrl: qcom: fix Kconfig dependency on
 GPIOLIB

On Tue 13 Apr 21:51 CDT 2021, Julian Braha wrote:

> When PINCTRL_MSM is enabled, and GPIOLIB is disabled,
> Kbuild gives the following warning:
> 
> WARNING: unmet direct dependencies detected for GPIOLIB_IRQCHIP
>   Depends on [n]: GPIOLIB [=n]
>   Selected by [y]:
>   - PINCTRL_MSM [=y] && PINCTRL [=y] && (ARCH_QCOM || COMPILE_TEST [=y])
> 
> This is because PINCTRL_MSM selects GPIOLIB_IRQCHIP,
> without selecting or depending on GPIOLIB, despite
> GPIOLIB_IRQCHIP depending on GPIOLIB. Having PINCTRL_MSM
> select GPIOLIB will cause a recursive dependency error.
> 

Reviewed-by: Bjorn Andersson <bjorn.andersson@...aro.org>

> Signed-off-by: Julian Braha <julianbraha@...il.com>
> ---
>  drivers/pinctrl/qcom/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/pinctrl/qcom/Kconfig b/drivers/pinctrl/qcom/Kconfig
> index 6853a896c476..d42ac59875ab 100644
> --- a/drivers/pinctrl/qcom/Kconfig
> +++ b/drivers/pinctrl/qcom/Kconfig
> @@ -3,7 +3,7 @@ if (ARCH_QCOM || COMPILE_TEST)
>  
>  config PINCTRL_MSM
>  	tristate "Qualcomm core pin controller driver"
> -	depends on QCOM_SCM || !QCOM_SCM #if QCOM_SCM=m this can't be =y
> +	depends on GPIOLIB && (QCOM_SCM || !QCOM_SCM) #if QCOM_SCM=m this can't be =y
>  	select PINMUX
>  	select PINCONF
>  	select GENERIC_PINCONF
> -- 
> 2.27.0
>