Message-ID: <09a628d3-5903-5d5d-b874-5e77bbdf939a@linux.intel.com>
Date: Thu, 8 May 2025 17:01:39 +0300 (EEST)
From: Ilpo Järvinen <ilpo.jarvinen@...ux.intel.com>
To: Mark Pearson <mpearson-lenovo@...ebb.ca>
cc: Hans de Goede <hdegoede@...hat.com>, ikepanhc@...il.com, W_Armin@....de, 
    Andy Shevchenko <andriy.shevchenko@...ux.intel.com>, 
    LKML <linux-kernel@...r.kernel.org>, platform-driver-x86@...r.kernel.org, 
    ibm-acpi-devel@...ts.sourceforge.net
Subject: Re: [PATCH 1/2] platform/x86: Move Lenovo files into lenovo subdir

On Wed, 7 May 2025, Mark Pearson wrote:

> Move all Lenovo specific files into their own sub-directory as part
> of clean-up exercise.
> Longer term goal is to break-up thinkpad_acpi to improve maintainability
> and perhaps share more functionality with other non thinkpad Lenovo
> platforms.
> 
> Signed-off-by: Mark Pearson <mpearson-lenovo@...ebb.ca>
> ---
> Some questions that I didn't want to put in the commit comment:
> 
>  - I didn't know if now was a good time to propose this change. I
>    realise it could cause headaches for anybody with patches being
>    worked on.

Don't worry too much about other changes, if you don't recall anything 
immediately, there likely isn't anything that significant. If we always
postpone useful reorganizations in fear that some hypothetical work would 
have to rebase, it never gets done :-).

>    Please let me know what makes it easiest for maintainers
>    and other developers. If there is a particular branch that would be
>    better to do this against also let me know.

Once I've merged fixes branch into for-next (I should do that at latest 
early next week if not already this week), it should be pretty 
straightforward to handle such move without conflicts.

>  - Should I be updating the MAINTAINERS file? I'm still not sure what
>    the protocol there is. I'm very happy to help review anything in the
>    lenovo directory, but I didn't want to make assumptions.

You should certainly update MAINTAINERS in the same patch to the new 
paths. If you want to make other changes, put them such as add your name 
into some entry or create a generic LENOVO entry, put those into own 
patch after the move please.

>  - I have tested on multiple platforms but I don't have any ideapads I
>    can use.

Given it's just moves file to new place, the threat of breaking something 
that isn't detected by simple build test, isn't that high.

-- 
 i.

>  drivers/platform/x86/Kconfig                  | 229 +---------------
>  drivers/platform/x86/Makefile                 |  13 +-
>  drivers/platform/x86/lenovo/Kconfig           | 246 ++++++++++++++++++
>  drivers/platform/x86/lenovo/Makefile          |  16 ++
>  .../x86/{ => lenovo}/ideapad-laptop.c         |   0
>  .../x86/{ => lenovo}/ideapad-laptop.h         |   0
>  .../x86/{ => lenovo}/lenovo-wmi-camera.c      |   0
>  .../lenovo-wmi-hotkey-utilities.c             |   0
>  .../platform/x86/{ => lenovo}/lenovo-ymc.c    |   0
>  .../lenovo-yoga-tab2-pro-1380-fastcharger.c   |   2 +-
>  .../x86/{ => lenovo}/lenovo-yogabook.c        |   0
>  drivers/platform/x86/{ => lenovo}/think-lmi.c |   2 +-
>  drivers/platform/x86/{ => lenovo}/think-lmi.h |   0
>  .../platform/x86/{ => lenovo}/thinkpad_acpi.c |   2 +-
>  14 files changed, 270 insertions(+), 240 deletions(-)
>  create mode 100644 drivers/platform/x86/lenovo/Kconfig
>  create mode 100644 drivers/platform/x86/lenovo/Makefile
>  rename drivers/platform/x86/{ => lenovo}/ideapad-laptop.c (100%)
>  rename drivers/platform/x86/{ => lenovo}/ideapad-laptop.h (100%)
>  rename drivers/platform/x86/{ => lenovo}/lenovo-wmi-camera.c (100%)
>  rename drivers/platform/x86/{ => lenovo}/lenovo-wmi-hotkey-utilities.c (100%)
>  rename drivers/platform/x86/{ => lenovo}/lenovo-ymc.c (100%)
>  rename drivers/platform/x86/{ => lenovo}/lenovo-yoga-tab2-pro-1380-fastcharger.c (99%)
>  rename drivers/platform/x86/{ => lenovo}/lenovo-yogabook.c (100%)
>  rename drivers/platform/x86/{ => lenovo}/think-lmi.c (99%)
>  rename drivers/platform/x86/{ => lenovo}/think-lmi.h (100%)
>  rename drivers/platform/x86/{ => lenovo}/thinkpad_acpi.c (99%)
> 
> diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig
> index 43407e76476b..20b61b658e88 100644
> --- a/drivers/platform/x86/Kconfig
> +++ b/drivers/platform/x86/Kconfig
> @@ -120,32 +120,6 @@ config GIGABYTE_WMI
>  	  To compile this driver as a module, choose M here: the module will
>  	  be called gigabyte-wmi.
>  
> -config YOGABOOK
> -	tristate "Lenovo Yoga Book tablet key driver"
> -	depends on ACPI_WMI
> -	depends on INPUT
> -	depends on I2C
> -	select LEDS_CLASS
> -	select NEW_LEDS
> -	help
> -	  Say Y here if you want to support the 'Pen' key and keyboard backlight
> -	  control on the Lenovo Yoga Book tablets.
> -
> -	  To compile this driver as a module, choose M here: the module will
> -	  be called lenovo-yogabook.
> -
> -config YT2_1380
> -	tristate "Lenovo Yoga Tablet 2 1380 fast charge driver"
> -	depends on SERIAL_DEV_BUS
> -	depends on EXTCON
> -	depends on ACPI
> -	help
> -	  Say Y here to enable support for the custom fast charging protocol
> -	  found on the Lenovo Yoga Tablet 2 1380F / 1380L models.
> -
> -	  To compile this driver as a module, choose M here: the module will
> -	  be called lenovo-yogabook.
> -
>  config ACERHDF
>  	tristate "Acer Aspire One temperature and fan driver"
>  	depends on ACPI_EC && THERMAL
> @@ -459,43 +433,6 @@ config IBM_RTL
>  	 state = 0 (BIOS SMIs on)
>  	 state = 1 (BIOS SMIs off)
>  
> -config IDEAPAD_LAPTOP
> -	tristate "Lenovo IdeaPad Laptop Extras"
> -	depends on ACPI
> -	depends on RFKILL && INPUT
> -	depends on SERIO_I8042
> -	depends on BACKLIGHT_CLASS_DEVICE
> -	depends on ACPI_VIDEO || ACPI_VIDEO = n
> -	depends on ACPI_WMI || ACPI_WMI = n
> -	select ACPI_PLATFORM_PROFILE
> -	select INPUT_SPARSEKMAP
> -	select NEW_LEDS
> -	select LEDS_CLASS
> -	help
> -	  This is a driver for Lenovo IdeaPad netbooks contains drivers for
> -	  rfkill switch, hotkey, fan control and backlight control.
> -
> -config LENOVO_WMI_HOTKEY_UTILITIES
> -	tristate "Lenovo Hotkey Utility WMI extras driver"
> -	depends on ACPI_WMI
> -	select NEW_LEDS
> -	select LEDS_CLASS
> -	imply IDEAPAD_LAPTOP
> -	help
> -	  This driver provides WMI support for Lenovo customized hotkeys function,
> -	  such as LED control for audio/mic mute event for Ideapad, YOGA, XiaoXin,
> -	  Gaming, ThinkBook and so on.
> -
> -config LENOVO_YMC
> -	tristate "Lenovo Yoga Tablet Mode Control"
> -	depends on ACPI_WMI
> -	depends on INPUT
> -	depends on IDEAPAD_LAPTOP
> -	select INPUT_SPARSEKMAP
> -	help
> -	  This driver maps the Tablet Mode Control switch to SW_TABLET_MODE input
> -	  events for Lenovo Yoga notebooks.
> -
>  config SENSORS_HDAPS
>  	tristate "Thinkpad Hard Drive Active Protection System (hdaps)"
>  	depends on INPUT
> @@ -514,160 +451,8 @@ config SENSORS_HDAPS
>  	  Say Y here if you have an applicable laptop and want to experience
>  	  the awesome power of hdaps.
>  
> -config THINKPAD_ACPI
> -	tristate "ThinkPad ACPI Laptop Extras"
> -	depends on ACPI_EC
> -	depends on ACPI_BATTERY
> -	depends on INPUT
> -	depends on RFKILL || RFKILL = n
> -	depends on ACPI_VIDEO || ACPI_VIDEO = n
> -	depends on BACKLIGHT_CLASS_DEVICE
> -	depends on I2C
> -	depends on DRM
> -	select ACPI_PLATFORM_PROFILE
> -	select DRM_PRIVACY_SCREEN
> -	select HWMON
> -	select NVRAM
> -	select NEW_LEDS
> -	select LEDS_CLASS
> -	select INPUT_SPARSEKMAP
> -	help
> -	  This is a driver for the IBM and Lenovo ThinkPad laptops. It adds
> -	  support for Fn-Fx key combinations, Bluetooth control, video
> -	  output switching, ThinkLight control, UltraBay eject and more.
> -	  For more information about this driver see
> -	  <file:Documentation/admin-guide/laptops/thinkpad-acpi.rst> and
> -	  <http://ibm-acpi.sf.net/> .
> -
> -	  This driver was formerly known as ibm-acpi.
> -
> -	  Extra functionality will be available if the rfkill (CONFIG_RFKILL)
> -	  and/or ALSA (CONFIG_SND) subsystems are available in the kernel.
> -	  Note that if you want ThinkPad-ACPI to be built-in instead of
> -	  modular, ALSA and rfkill will also have to be built-in.
> -
> -	  If you have an IBM or Lenovo ThinkPad laptop, say Y or M here.
> -
> -config THINKPAD_ACPI_ALSA_SUPPORT
> -	bool "Console audio control ALSA interface"
> -	depends on THINKPAD_ACPI
> -	depends on SND
> -	depends on SND = y || THINKPAD_ACPI = SND
> -	default y
> -	help
> -	  Enables monitoring of the built-in console audio output control
> -	  (headphone and speakers), which is operated by the mute and (in
> -	  some ThinkPad models) volume hotkeys.
> -
> -	  If this option is enabled, ThinkPad-ACPI will export an ALSA card
> -	  with a single read-only mixer control, which should be used for
> -	  on-screen-display feedback purposes by the Desktop Environment.
> -
> -	  Optionally, the driver will also allow software control (the
> -	  ALSA mixer will be made read-write).  Please refer to the driver
> -	  documentation for details.
> -
> -	  All IBM models have both volume and mute control.  Newer Lenovo
> -	  models only have mute control (the volume hotkeys are just normal
> -	  keys and volume control is done through the main HDA mixer).
> -
> -config THINKPAD_ACPI_DEBUGFACILITIES
> -	bool "Maintainer debug facilities"
> -	depends on THINKPAD_ACPI
> -	help
> -	  Enables extra stuff in the thinkpad-acpi which is completely useless
> -	  for normal use.  Read the driver source to find out what it does.
> -
> -	  Say N here, unless you were told by a kernel maintainer to do
> -	  otherwise.
> -
> -config THINKPAD_ACPI_DEBUG
> -	bool "Verbose debug mode"
> -	depends on THINKPAD_ACPI
> -	help
> -	  Enables extra debugging information, at the expense of a slightly
> -	  increase in driver size.
> -
> -	  If you are not sure, say N here.
> -
> -config THINKPAD_ACPI_UNSAFE_LEDS
> -	bool "Allow control of important LEDs (unsafe)"
> -	depends on THINKPAD_ACPI
> -	help
> -	  Overriding LED state on ThinkPads can mask important
> -	  firmware alerts (like critical battery condition), or misled
> -	  the user into damaging the hardware (undocking or ejecting
> -	  the bay while buses are still active), etc.
> -
> -	  LED control on the ThinkPad is write-only (with very few
> -	  exceptions on very ancient models), which makes it
> -	  impossible to know beforehand if important information will
> -	  be lost when one changes LED state.
> -
> -	  Users that know what they are doing can enable this option
> -	  and the driver will allow control of every LED, including
> -	  the ones on the dock stations.
> -
> -	  Never enable this option on a distribution kernel.
> -
> -	  Say N here, unless you are building a kernel for your own
> -	  use, and need to control the important firmware LEDs.
> -
> -config THINKPAD_ACPI_VIDEO
> -	bool "Video output control support"
> -	depends on THINKPAD_ACPI
> -	default y
> -	help
> -	  Allows the thinkpad_acpi driver to provide an interface to control
> -	  the various video output ports.
> -
> -	  This feature often won't work well, depending on ThinkPad model,
> -	  display state, video output devices in use, whether there is a X
> -	  server running, phase of the moon, and the current mood of
> -	  Schroedinger's cat.  If you can use X.org's RandR to control
> -	  your ThinkPad's video output ports instead of this feature,
> -	  don't think twice: do it and say N here to save memory and avoid
> -	  bad interactions with X.org.
> -
> -	  NOTE: access to this feature is limited to processes with the
> -	  CAP_SYS_ADMIN capability, to avoid local DoS issues in platforms
> -	  where it interacts badly with X.org.
> -
> -	  If you are not sure, say Y here but do try to check if you could
> -	  be using X.org RandR instead.
> -
> -config THINKPAD_ACPI_HOTKEY_POLL
> -	bool "Support NVRAM polling for hot keys"
> -	depends on THINKPAD_ACPI
> -	default y
> -	help
> -	  Some thinkpad models benefit from NVRAM polling to detect a few of
> -	  the hot key press events.  If you know your ThinkPad model does not
> -	  need to do NVRAM polling to support any of the hot keys you use,
> -	  unselecting this option will save about 1kB of memory.
> -
> -	  ThinkPads T40 and newer, R52 and newer, and X31 and newer are
> -	  unlikely to need NVRAM polling in their latest BIOS versions.
> -
> -	  NVRAM polling can detect at most the following keys: ThinkPad/Access
> -	  IBM, Zoom, Switch Display (fn+F7), ThinkLight, Volume up/down/mute,
> -	  Brightness up/down, Display Expand (fn+F8), Hibernate (fn+F12).
> -
> -	  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.
> -
>  source "drivers/platform/x86/intel/Kconfig"
> +source "drivers/platform/x86/lenovo/Kconfig"
>  
>  config ACPI_QUICKSTART
>  	tristate "ACPI Quickstart button driver"
> @@ -1063,18 +848,6 @@ config INSPUR_PLATFORM_PROFILE
>  	To compile this driver as a module, choose M here: the module
>  	will be called inspur-platform-profile.
>  
> -config LENOVO_WMI_CAMERA
> -	tristate "Lenovo WMI Camera Button driver"
> -	depends on ACPI_WMI
> -	depends on INPUT
> -	help
> -	  This driver provides support for Lenovo camera button. The Camera
> -	  button is a GPIO device. This driver receives ACPI notifications when
> -	  the camera button is switched on/off.
> -
> -	  To compile this driver as a module, choose M here: the module
> -	  will be called lenovo-wmi-camera.
> -
>  source "drivers/platform/x86/x86-android-tablets/Kconfig"
>  
>  config FW_ATTR_CLASS
> diff --git a/drivers/platform/x86/Makefile b/drivers/platform/x86/Makefile
> index 650dfbebb6c8..dae9dbb2ac94 100644
> --- a/drivers/platform/x86/Makefile
> +++ b/drivers/platform/x86/Makefile
> @@ -58,21 +58,16 @@ obj-$(CONFIG_X86_PLATFORM_DRIVERS_HP)	+= hp/
>  # Hewlett Packard Enterprise
>  obj-$(CONFIG_UV_SYSFS)       += uv_sysfs.o
>  
> -# IBM Thinkpad and Lenovo
> +# IBM Thinkpad
>  obj-$(CONFIG_IBM_RTL)		+= ibm_rtl.o
> -obj-$(CONFIG_IDEAPAD_LAPTOP)	+= ideapad-laptop.o
> -obj-$(CONFIG_LENOVO_WMI_HOTKEY_UTILITIES)	+= lenovo-wmi-hotkey-utilities.o
> -obj-$(CONFIG_LENOVO_YMC)	+= lenovo-ymc.o
>  obj-$(CONFIG_SENSORS_HDAPS)	+= hdaps.o
> -obj-$(CONFIG_THINKPAD_ACPI)	+= thinkpad_acpi.o
> -obj-$(CONFIG_THINKPAD_LMI)	+= think-lmi.o
> -obj-$(CONFIG_YOGABOOK)		+= lenovo-yogabook.o
> -obj-$(CONFIG_YT2_1380)		+= lenovo-yoga-tab2-pro-1380-fastcharger.o
> -obj-$(CONFIG_LENOVO_WMI_CAMERA)	+= lenovo-wmi-camera.o
>  
>  # Intel
>  obj-y				+= intel/
>  
> +# Lenovo
> +obj-y				+= lenovo/
> +
>  # Microsoft
>  obj-$(CONFIG_ACPI_QUICKSTART)  += quickstart.o
>  
> diff --git a/drivers/platform/x86/lenovo/Kconfig b/drivers/platform/x86/lenovo/Kconfig
> new file mode 100644
> index 000000000000..1c6e609cef6d
> --- /dev/null
> +++ b/drivers/platform/x86/lenovo/Kconfig
> @@ -0,0 +1,246 @@
> +# SPDX-License-Identifier: GPL-2.0-only
> +#
> +# Lenovo X86 Platform Specific Drivers
> +#
> +
> +menuconfig X86_PLATFORM_DRIVERS_LENOVO
> +	bool "Lenovo X86 Platform Specific Device Drivers"
> +	help
> +	  Say Y here to get to see options for device drivers for various
> +	  Lenovo x86 platforms, including vendor-specific laptop extension drivers.
> +	  This option alone does not add any kernel code.
> +
> +	  If you say N, all options in this submenu will be skipped and disabled.
> +
> +if X86_PLATFORM_DRIVERS_LENOVO
> +
> +config YOGABOOK
> +	tristate "Lenovo Yoga Book tablet key driver"
> +	depends on ACPI_WMI
> +	depends on INPUT
> +	depends on I2C
> +	select LEDS_CLASS
> +	select NEW_LEDS
> +	help
> +	  Say Y here if you want to support the 'Pen' key and keyboard backlight
> +	  control on the Lenovo Yoga Book tablets.
> +
> +	  To compile this driver as a module, choose M here: the module will
> +	  be called lenovo-yogabook.
> +
> +config YT2_1380
> +	tristate "Lenovo Yoga Tablet 2 1380 fast charge driver"
> +	depends on SERIAL_DEV_BUS
> +	depends on EXTCON
> +	depends on ACPI
> +	help
> +	  Say Y here to enable support for the custom fast charging protocol
> +	  found on the Lenovo Yoga Tablet 2 1380F / 1380L models.
> +
> +	  To compile this driver as a module, choose M here: the module will
> +	  be called lenovo-yogabook.
> +
> +config IDEAPAD_LAPTOP
> +	tristate "Lenovo IdeaPad Laptop Extras"
> +	depends on ACPI
> +	depends on RFKILL && INPUT
> +	depends on SERIO_I8042
> +	depends on BACKLIGHT_CLASS_DEVICE
> +	depends on ACPI_VIDEO || ACPI_VIDEO = n
> +	depends on ACPI_WMI || ACPI_WMI = n
> +	select ACPI_PLATFORM_PROFILE
> +	select INPUT_SPARSEKMAP
> +	select NEW_LEDS
> +	select LEDS_CLASS
> +	help
> +	  This is a driver for Lenovo IdeaPad netbooks contains drivers for
> +	  rfkill switch, hotkey, fan control and backlight control.
> +
> +config LENOVO_WMI_HOTKEY_UTILITIES
> +	tristate "Lenovo Hotkey Utility WMI extras driver"
> +	depends on ACPI_WMI
> +	select NEW_LEDS
> +	select LEDS_CLASS
> +	imply IDEAPAD_LAPTOP
> +	help
> +	  This driver provides WMI support for Lenovo customized hotkeys function,
> +	  such as LED control for audio/mic mute event for Ideapad, YOGA, XiaoXin,
> +	  Gaming, ThinkBook and so on.
> +
> +config LENOVO_YMC
> +	tristate "Lenovo Yoga Tablet Mode Control"
> +	depends on ACPI_WMI
> +	depends on INPUT
> +	depends on IDEAPAD_LAPTOP
> +	select INPUT_SPARSEKMAP
> +	help
> +	  This driver maps the Tablet Mode Control switch to SW_TABLET_MODE input
> +	  events for Lenovo Yoga notebooks.
> +
> +config THINKPAD_ACPI
> +	tristate "ThinkPad ACPI Laptop Extras"
> +	depends on ACPI_EC
> +	depends on ACPI_BATTERY
> +	depends on INPUT
> +	depends on RFKILL || RFKILL = n
> +	depends on ACPI_VIDEO || ACPI_VIDEO = n
> +	depends on BACKLIGHT_CLASS_DEVICE
> +	depends on I2C
> +	depends on DRM
> +	select ACPI_PLATFORM_PROFILE
> +	select DRM_PRIVACY_SCREEN
> +	select HWMON
> +	select NVRAM
> +	select NEW_LEDS
> +	select LEDS_CLASS
> +	select INPUT_SPARSEKMAP
> +	help
> +	  This is a driver for the IBM and Lenovo ThinkPad laptops. It adds
> +	  support for Fn-Fx key combinations, Bluetooth control, video
> +	  output switching, ThinkLight control, UltraBay eject and more.
> +	  For more information about this driver see
> +	  <file:Documentation/admin-guide/laptops/thinkpad-acpi.rst> and
> +	  <http://ibm-acpi.sf.net/> .
> +
> +	  This driver was formerly known as ibm-acpi.
> +
> +	  Extra functionality will be available if the rfkill (CONFIG_RFKILL)
> +	  and/or ALSA (CONFIG_SND) subsystems are available in the kernel.
> +	  Note that if you want ThinkPad-ACPI to be built-in instead of
> +	  modular, ALSA and rfkill will also have to be built-in.
> +
> +	  If you have an IBM or Lenovo ThinkPad laptop, say Y or M here.
> +
> +config THINKPAD_ACPI_ALSA_SUPPORT
> +	bool "Console audio control ALSA interface"
> +	depends on THINKPAD_ACPI
> +	depends on SND
> +	depends on SND = y || THINKPAD_ACPI = SND
> +	default y
> +	help
> +	  Enables monitoring of the built-in console audio output control
> +	  (headphone and speakers), which is operated by the mute and (in
> +	  some ThinkPad models) volume hotkeys.
> +
> +	  If this option is enabled, ThinkPad-ACPI will export an ALSA card
> +	  with a single read-only mixer control, which should be used for
> +	  on-screen-display feedback purposes by the Desktop Environment.
> +
> +	  Optionally, the driver will also allow software control (the
> +	  ALSA mixer will be made read-write).  Please refer to the driver
> +	  documentation for details.
> +
> +	  All IBM models have both volume and mute control.  Newer Lenovo
> +	  models only have mute control (the volume hotkeys are just normal
> +	  keys and volume control is done through the main HDA mixer).
> +
> +config THINKPAD_ACPI_DEBUGFACILITIES
> +	bool "Maintainer debug facilities"
> +	depends on THINKPAD_ACPI
> +	help
> +	  Enables extra stuff in the thinkpad-acpi which is completely useless
> +	  for normal use.  Read the driver source to find out what it does.
> +
> +	  Say N here, unless you were told by a kernel maintainer to do
> +	  otherwise.
> +
> +config THINKPAD_ACPI_DEBUG
> +	bool "Verbose debug mode"
> +	depends on THINKPAD_ACPI
> +	help
> +	  Enables extra debugging information, at the expense of a slightly
> +	  increase in driver size.
> +
> +	  If you are not sure, say N here.
> +
> +config THINKPAD_ACPI_UNSAFE_LEDS
> +	bool "Allow control of important LEDs (unsafe)"
> +	depends on THINKPAD_ACPI
> +	help
> +	  Overriding LED state on ThinkPads can mask important
> +	  firmware alerts (like critical battery condition), or misled
> +	  the user into damaging the hardware (undocking or ejecting
> +	  the bay while buses are still active), etc.
> +
> +	  LED control on the ThinkPad is write-only (with very few
> +	  exceptions on very ancient models), which makes it
> +	  impossible to know beforehand if important information will
> +	  be lost when one changes LED state.
> +
> +	  Users that know what they are doing can enable this option
> +	  and the driver will allow control of every LED, including
> +	  the ones on the dock stations.
> +
> +	  Never enable this option on a distribution kernel.
> +
> +	  Say N here, unless you are building a kernel for your own
> +	  use, and need to control the important firmware LEDs.
> +
> +config THINKPAD_ACPI_VIDEO
> +	bool "Video output control support"
> +	depends on THINKPAD_ACPI
> +	default y
> +	help
> +	  Allows the thinkpad_acpi driver to provide an interface to control
> +	  the various video output ports.
> +
> +	  This feature often won't work well, depending on ThinkPad model,
> +	  display state, video output devices in use, whether there is a X
> +	  server running, phase of the moon, and the current mood of
> +	  Schroedinger's cat.  If you can use X.org's RandR to control
> +	  your ThinkPad's video output ports instead of this feature,
> +	  don't think twice: do it and say N here to save memory and avoid
> +	  bad interactions with X.org.
> +
> +	  NOTE: access to this feature is limited to processes with the
> +	  CAP_SYS_ADMIN capability, to avoid local DoS issues in platforms
> +	  where it interacts badly with X.org.
> +
> +	  If you are not sure, say Y here but do try to check if you could
> +	  be using X.org RandR instead.
> +
> +config THINKPAD_ACPI_HOTKEY_POLL
> +	bool "Support NVRAM polling for hot keys"
> +	depends on THINKPAD_ACPI
> +	default y
> +	help
> +	  Some thinkpad models benefit from NVRAM polling to detect a few of
> +	  the hot key press events.  If you know your ThinkPad model does not
> +	  need to do NVRAM polling to support any of the hot keys you use,
> +	  unselecting this option will save about 1kB of memory.
> +
> +	  ThinkPads T40 and newer, R52 and newer, and X31 and newer are
> +	  unlikely to need NVRAM polling in their latest BIOS versions.
> +
> +	  NVRAM polling can detect at most the following keys: ThinkPad/Access
> +	  IBM, Zoom, Switch Display (fn+F7), ThinkLight, Volume up/down/mute,
> +	  Brightness up/down, Display Expand (fn+F8), Hibernate (fn+F12).
> +
> +	  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 LENOVO_WMI_CAMERA
> +	tristate "Lenovo WMI Camera Button driver"
> +	depends on ACPI_WMI
> +	depends on INPUT
> +	help
> +	  This driver provides support for Lenovo camera button. The Camera
> +	  button is a GPIO device. This driver receives ACPI notifications when
> +	  the camera button is switched on/off.
> +
> +	  To compile this driver as a module, choose M here: the module
> +	  will be called lenovo-wmi-camera.
> +
> +endif # X86_PLATFORM_DRIVERS_LENOVO
> +
> diff --git a/drivers/platform/x86/lenovo/Makefile b/drivers/platform/x86/lenovo/Makefile
> new file mode 100644
> index 000000000000..f3290d9c6fd6
> --- /dev/null
> +++ b/drivers/platform/x86/lenovo/Makefile
> @@ -0,0 +1,16 @@
> +# SPDX-License-Identifier: GPL-2.0
> +#
> +# Makefile for linux/drivers/platform/x86/lenovo
> +# Lenovo x86 Platform-Specific Drivers
> +#
> +obj-$(CONFIG_IDEAPAD_LAPTOP)	+= ideapad-laptop.o
> +obj-$(CONFIG_LENOVO_WMI_HOTKEY_UTILITIES)	+= lenovo-wmi-hotkey-utilities.o
> +obj-$(CONFIG_LENOVO_YMC)	+= lenovo-ymc.o
> +obj-$(CONFIG_THINKPAD_ACPI)	+= thinkpad_acpi.o
> +obj-$(CONFIG_THINKPAD_LMI)	+= think-lmi.o
> +obj-$(CONFIG_YOGABOOK)		+= lenovo-yogabook.o
> +obj-$(CONFIG_YT2_1380)		+= lenovo-yoga-tab2-pro-1380-fastcharger.o
> +obj-$(CONFIG_LENOVO_WMI_CAMERA)	+= lenovo-wmi-camera.o
> +
> +
> +
> diff --git a/drivers/platform/x86/ideapad-laptop.c b/drivers/platform/x86/lenovo/ideapad-laptop.c
> similarity index 100%
> rename from drivers/platform/x86/ideapad-laptop.c
> rename to drivers/platform/x86/lenovo/ideapad-laptop.c
> diff --git a/drivers/platform/x86/ideapad-laptop.h b/drivers/platform/x86/lenovo/ideapad-laptop.h
> similarity index 100%
> rename from drivers/platform/x86/ideapad-laptop.h
> rename to drivers/platform/x86/lenovo/ideapad-laptop.h
> diff --git a/drivers/platform/x86/lenovo-wmi-camera.c b/drivers/platform/x86/lenovo/lenovo-wmi-camera.c
> similarity index 100%
> rename from drivers/platform/x86/lenovo-wmi-camera.c
> rename to drivers/platform/x86/lenovo/lenovo-wmi-camera.c
> diff --git a/drivers/platform/x86/lenovo-wmi-hotkey-utilities.c b/drivers/platform/x86/lenovo/lenovo-wmi-hotkey-utilities.c
> similarity index 100%
> rename from drivers/platform/x86/lenovo-wmi-hotkey-utilities.c
> rename to drivers/platform/x86/lenovo/lenovo-wmi-hotkey-utilities.c
> diff --git a/drivers/platform/x86/lenovo-ymc.c b/drivers/platform/x86/lenovo/lenovo-ymc.c
> similarity index 100%
> rename from drivers/platform/x86/lenovo-ymc.c
> rename to drivers/platform/x86/lenovo/lenovo-ymc.c
> diff --git a/drivers/platform/x86/lenovo-yoga-tab2-pro-1380-fastcharger.c b/drivers/platform/x86/lenovo/lenovo-yoga-tab2-pro-1380-fastcharger.c
> similarity index 99%
> rename from drivers/platform/x86/lenovo-yoga-tab2-pro-1380-fastcharger.c
> rename to drivers/platform/x86/lenovo/lenovo-yoga-tab2-pro-1380-fastcharger.c
> index 25933cd018d1..b3fd6a35052a 100644
> --- a/drivers/platform/x86/lenovo-yoga-tab2-pro-1380-fastcharger.c
> +++ b/drivers/platform/x86/lenovo/lenovo-yoga-tab2-pro-1380-fastcharger.c
> @@ -21,7 +21,7 @@
>  #include <linux/time.h>
>  #include <linux/types.h>
>  #include <linux/workqueue.h>
> -#include "serdev_helpers.h"
> +#include "../serdev_helpers.h"
>  
>  #define YT2_1380_FC_PDEV_NAME		"lenovo-yoga-tab2-pro-1380-fastcharger"
>  #define YT2_1380_FC_SERDEV_CTRL		"serial0"
> diff --git a/drivers/platform/x86/lenovo-yogabook.c b/drivers/platform/x86/lenovo/lenovo-yogabook.c
> similarity index 100%
> rename from drivers/platform/x86/lenovo-yogabook.c
> rename to drivers/platform/x86/lenovo/lenovo-yogabook.c
> diff --git a/drivers/platform/x86/think-lmi.c b/drivers/platform/x86/lenovo/think-lmi.c
> similarity index 99%
> rename from drivers/platform/x86/think-lmi.c
> rename to drivers/platform/x86/lenovo/think-lmi.c
> index 0fc275e461be..5d629a85a55a 100644
> --- a/drivers/platform/x86/think-lmi.c
> +++ b/drivers/platform/x86/lenovo/think-lmi.c
> @@ -20,7 +20,7 @@
>  #include <linux/types.h>
>  #include <linux/dmi.h>
>  #include <linux/wmi.h>
> -#include "firmware_attributes_class.h"
> +#include "../firmware_attributes_class.h"
>  #include "think-lmi.h"
>  
>  static bool debug_support;
> diff --git a/drivers/platform/x86/think-lmi.h b/drivers/platform/x86/lenovo/think-lmi.h
> similarity index 100%
> rename from drivers/platform/x86/think-lmi.h
> rename to drivers/platform/x86/lenovo/think-lmi.h
> diff --git a/drivers/platform/x86/thinkpad_acpi.c b/drivers/platform/x86/lenovo/thinkpad_acpi.c
> similarity index 99%
> rename from drivers/platform/x86/thinkpad_acpi.c
> rename to drivers/platform/x86/lenovo/thinkpad_acpi.c
> index 5790095c175e..7dd4abf47f61 100644
> --- a/drivers/platform/x86/thinkpad_acpi.c
> +++ b/drivers/platform/x86/lenovo/thinkpad_acpi.c
> @@ -81,7 +81,7 @@
>  #include <sound/core.h>
>  #include <sound/initval.h>
>  
> -#include "dual_accel_detect.h"
> +#include "../dual_accel_detect.h"
>  
>  /* ThinkPad CMOS commands */
>  #define TP_CMOS_VOLUME_DOWN	0
> 

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