Re: [PATCH RFC v6 5/7] ipmi: ls2k: adjust dependency to its mfd driver

On Wed, Aug 05, 2026 at 03:14:23AM +0800, Miao Wang via B4 Relay wrote:
> From: Miao Wang <[email protected]>
> 
> There is functional dependency between the IPMI driver and its mfd
> driver. Previously, the dependency was set to "select" from
> IPMI_LS2K to MFD_LS2K_BMC_CORE. However, the ipmi driver is actually
> compiled as a part of the ipmi_si module, and IPMI_LS2K is a bool
> option. Therefore, the dependency "select" will force the mfd driver
> to be compiled built-in when the ipmi driver is built as a module. This
> is not desirable. This patch fixes this by declaring a conditional
> dependency from IPMI_SI to MFD_LS2K_BMC_CORE if IPMI_LS2K is selected.
> This will allow the mfd driver to be compiled as a module if the ipmi
> driver is built as a module. The adjustment to Kconfig for the mfd
> driver will be introduced in the later patch in this series.

Looks good to me.

Acked-by: Corey Minyard <[email protected]>

> 
> Fixes: d46651d4e3c0 ("ipmi: Add Loongson-2K BMC support")
> Signed-off-by: Miao Wang <[email protected]>
> ---
>  drivers/char/ipmi/Kconfig | 2 +-
>  1 file changed, 1 insertion(+), 1 deletion(-)
> 
> diff --git a/drivers/char/ipmi/Kconfig b/drivers/char/ipmi/Kconfig
> index 669f7600019747bcd2b37563477cf336f19a0407..07f3308c71616215871a730b87f1991d2b502e63 100644
> --- a/drivers/char/ipmi/Kconfig
> +++ b/drivers/char/ipmi/Kconfig
> @@ -62,6 +62,7 @@ config IPMI_DEVICE_INTERFACE
>  config IPMI_SI
>  	tristate 'IPMI System Interface handler'
>  	select IPMI_PLAT_DATA
> +	select MFD_LS2K_BMC_CORE if IPMI_LS2K
>  	help
>  	  Provides a driver for System Interfaces (KCS, SMIC, BT).
>  	  Currently, only KCS and SMIC are supported.  If
> @@ -87,7 +88,6 @@ config IPMI_IPMB
>  config IPMI_LS2K
>  	bool 'Loongson-2K IPMI interface'
>  	depends on LOONGARCH
> -	select MFD_LS2K_BMC_CORE
>  	help
>  	  Provides a driver for Loongson-2K IPMI interfaces.
>  
> 
> -- 
> 2.49.0
> 
>