Commit a40cd7ef authored by Mark Pearson's avatar Mark Pearson Committed by Hans de Goede
Browse files

platform/x86: think-lmi: Add WMI interface support on Lenovo platforms 



For Lenovo platforms that support a WMI interface to the BIOS add
support, using the firmware-attributes class, to allow users to access
and modify various BIOS related settings.

Signed-off-by: default avatarMark Pearson <markpearson@lenovo.com>
Link: https://lore.kernel.org/r/20210530223111.25929-3-markpearson@lenovo.com


Reviewed-by: default avatarHans de Goede <hdegoede@redhat.com>
Signed-off-by: default avatarHans de Goede <hdegoede@redhat.com>
parent 8a1c379c

Documentation/ABI/testing/sysfs-class-firmware-attributes

+17 −1
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@@ -197,8 +197,24 @@ Description: 
		Drivers may emit a CHANGE uevent when a password is set or unset

		userspace may check it again.



		On Dell systems, if Admin password is set, then all BIOS attributes

		On Dell and Lenovo systems, if Admin password is set, then all BIOS attributes

		require password validation.

		On Lenovo systems if you change the Admin password the new password is not active until

		the next boot.



		Lenovo specific class extensions

		------------------------------



		On Lenovo systems the following additional settings are available:



		lenovo_encoding:

					The encoding method that is used. This can be either "ascii"

					or "scancode". Default is set to "ascii"



		lenovo_kbdlang:

					The keyboard language method that is used. This is generally a

					two char code (e.g. "us", "fr", "gr") and may vary per platform.

					Default is set to "us"



What:		/sys/class/firmware-attributes/*/attributes/pending_reboot

Date:		February 2021

MAINTAINERS

+7 −0
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@@ -18163,6 +18163,13 @@ W: http://thinkwiki.org/wiki/Ibm-acpi 
T:	git git://repo.or.cz/linux-2.6/linux-acpi-2.6/ibm-acpi-2.6.git

F:	drivers/platform/x86/thinkpad_acpi.c









THINKPAD LMI DRIVER









M:	Mark Pearson <markpearson@lenovo.com>









L:	platform-driver-x86@vger.kernel.org









S:	Maintained









F:	Documentation/ABI/testing/sysfs-class-firmware-attributes









F:	drivers/platform/x86/think-lmi.?

















THUNDERBOLT DMA TRAFFIC TEST DRIVER









M:	Isaac Hazan <isaac.hazan@intel.com>









L:	linux-usb@vger.kernel.org

























drivers/platform/x86/Kconfig



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−0






























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@@ -640,6 +640,17 @@ config THINKPAD_ACPI_HOTKEY_POLL







	  If you are not sure, say Y here.  The driver enables polling only if









	  it is strictly necessary to do so.



















config THINKPAD_LMI









	tristate "Lenovo WMI-based systems management driver"









	depends on ACPI_WMI









	select FW_ATTR_CLASS









	help









	  This driver allows changing BIOS settings on Lenovo machines whose









	  BIOS support the WMI interface.



















	  To compile this driver as a module, choose M here: the module will









	  be called think-lmi.



















config INTEL_ATOMISP2_LED









	tristate "Intel AtomISP2 camera LED driver"









	depends on GPIOLIB && LEDS_GPIO
































drivers/platform/x86/Makefile



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@@ -63,6 +63,7 @@ obj-$(CONFIG_IBM_RTL)		+= ibm_rtl.o







obj-$(CONFIG_IDEAPAD_LAPTOP)	+= ideapad-laptop.o









obj-$(CONFIG_SENSORS_HDAPS)	+= hdaps.o









obj-$(CONFIG_THINKPAD_ACPI)	+= thinkpad_acpi.o









obj-$(CONFIG_THINKPAD_LMI)	+= think-lmi.o



















# Intel









obj-$(CONFIG_INTEL_ATOMISP2_LED)	+= intel_atomisp2_led.o
































drivers/platform/x86/think-lmi.c
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