mirrors/linux
1
0
Fork 0
mirror of https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git synced 2025-12-27 12:21:22 -05:00
Code Issues Packages Projects Releases Wiki Activity

platform/x86: wmi: Move WMI core code into a separate directory

Browse Source 
Move the WMI core code into a separate directory to prepare for
future additions to the WMI driver. Also update the description
of the Kconfig entry to better fit with the other subsystem
Kconfig entries.

Signed-off-by: Armin Wolf <W_Armin@gmx.de>
Link: https://patch.msgid.link/20251111131125.3379-5-W_Armin@gmx.de
Reviewed-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
Signed-off-by: Ilpo Järvinen <ilpo.jarvinen@linux.intel.com>
This commit is contained in:
Armin Wolf
2025-11-11 14:11:25 +01:00
committed by Ilpo Järvinen
parent 32e3fee88a
commit e2c1b56f3d
9 changed files with 47 additions and 33 deletions
Download Patch File Download Diff File Expand all files Collapse all files

2
Documentation/driver-api/wmi.rst
View File

@@ -16,5 +16,5 @@ which will be bound to compatible WMI devices by the driver core.
.. kernel-doc:: include/linux/wmi.h
:internal:
.. kernel-doc:: drivers/platform/x86/wmi.c
.. kernel-doc:: drivers/platform/wmi/core.c
:export:

2
MAINTAINERS
View File

@@ -402,7 +402,7 @@ S: Maintained
F: Documentation/ABI/testing/sysfs-bus-wmi
F: Documentation/driver-api/wmi.rst
F: Documentation/wmi/
F: drivers/platform/x86/wmi.c
F: drivers/platform/wmi/
F: include/uapi/linux/wmi.h
ACRN HYPERVISOR SERVICE MODULE

2
drivers/platform/Kconfig
View File

@@ -18,3 +18,5 @@ source "drivers/platform/surface/Kconfig"
source "drivers/platform/x86/Kconfig"
source "drivers/platform/arm64/Kconfig"
source "drivers/platform/wmi/Kconfig"

1
drivers/platform/Makefile
View File

@@ -13,3 +13,4 @@ obj-$(CONFIG_CHROME_PLATFORMS) += chrome/
obj-$(CONFIG_CZNIC_PLATFORMS) += cznic/
obj-$(CONFIG_SURFACE_PLATFORMS) += surface/
obj-$(CONFIG_ARM64_PLATFORM_DEVICES) += arm64/
obj-$(CONFIG_ACPI_WMI) += wmi/

34
drivers/platform/wmi/Kconfig Normal file
View File

@@ -0,0 +1,34 @@
# SPDX-License-Identifier: GPL-2.0-or-later
#
# ACPI WMI Core
#
menuconfig ACPI_WMI
tristate "ACPI-WMI support"
depends on ACPI && X86
help
This option enables support for the ACPI-WMI driver core.
The ACPI-WMI interface is a proprietary extension of ACPI allowing
the platform firmware to expose WMI (Windows Management Instrumentation)
objects used for managing various aspects of the underlying system.
Mapping between ACPI control methods and WMI objects happens through
special mapper devices (PNP0C14) defined inside the ACPI tables.
Enabling this option is necessary for building the vendor specific
ACPI-WMI client drivers for Acer, Dell an HP machines (among others).
It is safe to enable this option even for machines that do not contain
any ACPI-WMI mapper devices at all.
if ACPI_WMI
config ACPI_WMI_LEGACY_DEVICE_NAMES
bool "Use legacy WMI device naming scheme"
help
Say Y here to force the WMI driver core to use the old WMI device naming
scheme when creating WMI devices. Doing so might be necessary for some
userspace applications but will cause the registration of WMI devices with
the same GUID to fail in some corner cases.
endif # ACPI_WMI

8
drivers/platform/wmi/Makefile Normal file
View File

@@ -0,0 +1,8 @@
# SPDX-License-Identifier: GPL-2.0-or-later
#
# Makefile for linux/drivers/platform/wmi
# ACPI WMI core
#
wmi-y := core.o
obj-$(CONFIG_ACPI_WMI) += wmi.o

0
drivers/platform/x86/wmi.c → drivers/platform/wmi/core.c
View File

30
drivers/platform/x86/Kconfig
View File

@@ -16,36 +16,6 @@ menuconfig X86_PLATFORM_DEVICES
if X86_PLATFORM_DEVICES
config ACPI_WMI
tristate "WMI"
depends on ACPI
help
This driver adds support for the ACPI-WMI (Windows Management
Instrumentation) mapper device (PNP0C14) found on some systems.
ACPI-WMI is a proprietary extension to ACPI to expose parts of the
ACPI firmware to userspace - this is done through various vendor
defined methods and data blocks in a PNP0C14 device, which are then
made available for userspace to call.
The implementation of this in Linux currently only exposes this to
other kernel space drivers.
This driver is a required dependency to build the firmware specific
drivers needed on many machines, including Acer and HP laptops.
It is safe to enable this driver even if your DSDT doesn't define
any ACPI-WMI devices.
config ACPI_WMI_LEGACY_DEVICE_NAMES
bool "Use legacy WMI device naming scheme"
depends on ACPI_WMI
help
Say Y here to force the WMI driver core to use the old WMI device naming
scheme when creating WMI devices. Doing so might be necessary for some
userspace applications but will cause the registration of WMI devices with
the same GUID to fail in some corner cases.
config WMI_BMOF
tristate "WMI embedded Binary MOF driver"
depends on ACPI_WMI

1
drivers/platform/x86/Makefile
View File

@@ -5,7 +5,6 @@
#
# Windows Management Interface
obj-$(CONFIG_ACPI_WMI) += wmi.o
obj-$(CONFIG_WMI_BMOF) += wmi-bmof.o
# WMI drivers