Re: [PATCH v9 3/7] mux: add help text for MULTIPLEXER config option

[Peter Rosin]

Hi!

2026-02-08 at 16:38, Josua Mayer wrote:
> Add prompt and help text for CONFIG_MULTIPLEXER to allow enabling this
> option thorugh the kernel configuration without explicit "select" driver
> dependencies.
> 
> Select it by default when COMPILE_TEST is set for better coverage.
> 
> Signed-off-by: Josua Mayer <josua@xxxxxxxxxxxxx>
> ---
>  drivers/mux/Kconfig | 9 ++++++++-
>  1 file changed, 8 insertions(+), 1 deletion(-)
> 
> diff --git a/drivers/mux/Kconfig b/drivers/mux/Kconfig
> index c68132e38138..4f7c6bb86fc6 100644
> --- a/drivers/mux/Kconfig
> +++ b/drivers/mux/Kconfig
> @@ -4,7 +4,14 @@
>  #
>  
>  config MULTIPLEXER
> -	tristate
> +	tristate "Generic Multiplexer Support"
> +	default m if COMPILE_TEST
> +	help
> +	  This framework is designed to abstract multiplexer handling for
> +	  devices via various GPIO-, MMIO/Regmap or specific multiplexer
> +	  controller chips.
> +
> +	  If unsure, say no.
>  
>  menu "Multiplexer drivers"
>  	depends on MULTIPLEXER
> 

I'm not comfortable with making MULTIPLEXER a visible symbol. It is meant to
be selected when needed (and there are a dozen or so instances). The kbuild
docs has this on the subject:

	"In general use select only for non-visible symbols (no prompts
	 anywhere) and for symbols with no dependencies."

Cheers,
Peter