Re: [PATCH 3/3] platform/x86: wmi-bmof: Move to generic WMI code

On Fri, 17 Jul 2026, Armin Wolf wrote:

> Some Windows-on-Arm notebooks contain embedded Binary MOF data,
> accessible using the WMI-ACPI interface. Move the associated driver
> to the generic WMI code to make it possible to build it on arm64.
> Also rework the Kconfig help text a bit.
> 
> Link: https://lists.linaro.org/archives/list/[email protected]/thread/U2IZENSIOOHZHGXVN7GM5HX5O3FD5KCF/
> Signed-off-by: Armin Wolf <[email protected]>
> ---
>  MAINTAINERS                                     |  2 +-
>  drivers/platform/wmi/Kconfig                    | 12 ++++++++++++
>  drivers/platform/wmi/Makefile                   |  4 ++++
>  drivers/platform/{x86/wmi-bmof.c => wmi/bmof.c} |  0
>  drivers/platform/x86/Kconfig                    | 12 ------------
>  drivers/platform/x86/Makefile                   |  3 ---
>  6 files changed, 17 insertions(+), 16 deletions(-)
>  rename drivers/platform/{x86/wmi-bmof.c => wmi/bmof.c} (100%)
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index 3820b286f09f..bbae729a6012 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -29106,7 +29106,7 @@ L:	[email protected]
>  S:	Maintained
>  F:	Documentation/ABI/stable/sysfs-platform-wmi-bmof
>  F:	Documentation/wmi/devices/wmi-bmof.rst
> -F:	drivers/platform/x86/wmi-bmof.c
> +F:	drivers/platform/wmi/bmof.c
>  
>  WOLFSON MICROELECTRONICS DRIVERS
>  L:	[email protected]
> diff --git a/drivers/platform/wmi/Kconfig b/drivers/platform/wmi/Kconfig
> index 36934b5f0194..11c221a58e04 100644
> --- a/drivers/platform/wmi/Kconfig
> +++ b/drivers/platform/wmi/Kconfig
> @@ -34,4 +34,16 @@ config ACPI_WMI_LEGACY_DEVICE_NAMES
>  
>  source "drivers/platform/wmi/tests/Kconfig"
>  
> +config WMI_BMOF
> +	tristate "WMI embedded Binary MOF driver"
> +	default ACPI_WMI
> +	help
> +	  Say Y here if you want to be able to read the firmware-embedded
> +	  WMI Binary MOF (Managed Object Format) data. Using this requires
> +	  userspace tools, see Documentation/wmi/devices/wmi-bmof.rst for
> +	  details.
> +
> +	  To compile this driver as a module, choose M here: the module will
> +	  be called wmi-bmof.
> +
>  endif # ACPI_WMI
> diff --git a/drivers/platform/wmi/Makefile b/drivers/platform/wmi/Makefile
> index 2feff94a5594..ee2f27ea20d1 100644
> --- a/drivers/platform/wmi/Makefile
> +++ b/drivers/platform/wmi/Makefile
> @@ -9,3 +9,7 @@ obj-$(CONFIG_ACPI_WMI)	+= wmi.o
>  
>  # Unit tests
>  obj-y			+= tests/
> +
> +# Binary MOF driver
> +wmi-bmof-y		:= bmof.o
> +obj-$(CONFIG_WMI_BMOF)	+= wmi-bmof.o
> diff --git a/drivers/platform/x86/wmi-bmof.c b/drivers/platform/wmi/bmof.c
> similarity index 100%
> rename from drivers/platform/x86/wmi-bmof.c
> rename to drivers/platform/wmi/bmof.c
> diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
> index 957034f39e4e..889979034391 100644
> --- a/drivers/platform/x86/Kconfig
> +++ b/drivers/platform/x86/Kconfig
> @@ -16,18 +16,6 @@ menuconfig X86_PLATFORM_DEVICES
>  
>  if X86_PLATFORM_DEVICES
>  
> -config WMI_BMOF
> -	tristate "WMI embedded Binary MOF driver"
> -	depends on ACPI_WMI
> -	default ACPI_WMI
> -	help
> -	  Say Y here if you want to be able to read a firmware-embedded
> -	  WMI Binary MOF (Managed Object Format) data. Using this requires
> -	  userspace tools and may be rather tedious.
> -
> -	  To compile this driver as a module, choose M here: the module will
> -	  be called wmi-bmof.
> -
>  config HUAWEI_WMI
>  	tristate "Huawei WMI laptop extras driver"
>  	depends on ACPI_BATTERY
> diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
> index 872ac3842391..94a5fe4075cb 100644
> --- a/drivers/platform/x86/Makefile
> +++ b/drivers/platform/x86/Makefile
> @@ -4,9 +4,6 @@
>  # x86 Platform-Specific Drivers
>  #
>  
> -# Windows Management Interface
> -obj-$(CONFIG_WMI_BMOF)		+= wmi-bmof.o
> -
>  # WMI drivers
>  obj-$(CONFIG_HUAWEI_WMI)		+= huawei-wmi.o
>  obj-$(CONFIG_MXM_WMI)			+= mxm-wmi.o
> 

Reviewed-by: Ilpo Järvinen <[email protected]>

-- 
 i.