treewide: remove redundant IS_ERR() before error code check

[linux/fpc-iii.git] / drivers / platform / x86 / Kconfig

# SPDX-License-Identifier: GPL-2.0-only
#
# X86 Platform Specific Drivers
#

menuconfig X86_PLATFORM_DEVICES
        bool "X86 Platform Specific Device Drivers"
        default y
        depends on X86
        ---help---
          Say Y here to get to see options for device drivers for various
          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_DEVICES

config ACER_WMI
        tristate "Acer WMI Laptop Extras"
        depends on ACPI
        select LEDS_CLASS
        select NEW_LEDS
        depends on BACKLIGHT_CLASS_DEVICE
        depends on SERIO_I8042
        depends on INPUT
        depends on RFKILL || RFKILL = n
        depends on ACPI_WMI
        select INPUT_SPARSEKMAP
        # Acer WMI depends on ACPI_VIDEO when ACPI is enabled
        select ACPI_VIDEO if ACPI
        ---help---
          This is a driver for newer Acer (and Wistron) laptops. It adds
          wireless radio and bluetooth control, and on some laptops,
          exposes the mail LED and LCD backlight.

          If you have an ACPI-WMI compatible Acer/ Wistron laptop, say Y or M
          here.

config ACER_WIRELESS
        tristate "Acer Wireless Radio Control Driver"
        depends on ACPI
        depends on INPUT
        ---help---
          The Acer Wireless Radio Control handles the airplane mode hotkey
          present on new Acer laptops.

          Say Y or M here if you have an Acer notebook with an airplane mode
          hotkey.

          If you choose to compile this driver as a module the module will be
          called acer-wireless.

config ACERHDF
        tristate "Acer Aspire One temperature and fan driver"
        depends on ACPI && THERMAL
        select THERMAL_GOV_BANG_BANG
        ---help---
          This is a driver for Acer Aspire One netbooks. It allows to access
          the temperature sensor and to control the fan.

          After loading this driver the BIOS is still in control of the fan.
          To let the kernel handle the fan, do:
          echo -n enabled > /sys/class/thermal/thermal_zoneN/mode
          where N=0,1,2... depending on the number of thermal nodes and the
          detection order of your particular system.  The "type" parameter
          in the same node directory will tell you if it is "acerhdf".

          For more information about this driver see
          <http://piie.net/files/acerhdf_README.txt>

          If you have an Acer Aspire One netbook, say Y or M
          here.

config ALIENWARE_WMI
        tristate "Alienware Special feature control"
        depends on ACPI
        depends on LEDS_CLASS
        depends on NEW_LEDS
        depends on ACPI_WMI
        ---help---
         This is a driver for controlling Alienware BIOS driven
         features.  It exposes an interface for controlling the AlienFX
         zones on Alienware machines that don't contain a dedicated AlienFX
         USB MCU such as the X51 and X51-R2.

config ASUS_LAPTOP
        tristate "Asus Laptop Extras"
        depends on ACPI
        select LEDS_CLASS
        select NEW_LEDS
        depends on BACKLIGHT_CLASS_DEVICE
        depends on INPUT
        depends on RFKILL || RFKILL = n
        depends on ACPI_VIDEO || ACPI_VIDEO = n
        select INPUT_SPARSEKMAP
        ---help---
          This is a driver for Asus laptops, Lenovo SL and the Pegatron
          Lucid tablet. It may also support some MEDION, JVC or VICTOR
          laptops. It makes all the extra buttons generate standard
          ACPI events and input events, and on the Lucid the built-in
          accelerometer appears as an input device.  It also adds
          support for video output switching, LCD backlight control,
          Bluetooth and Wlan control, and most importantly, allows you
          to blink those fancy LEDs.

          For more information see <http://acpi4asus.sf.net>.

          If you have an ACPI-compatible ASUS laptop, say Y or M here.

config DCDBAS
        tristate "Dell Systems Management Base Driver"
        depends on X86
        help
          The Dell Systems Management Base Driver provides a sysfs interface
          for systems management software to perform System Management
          Interrupts (SMIs) and Host Control Actions (system power cycle or
          power off after OS shutdown) on certain Dell systems.

          See <file:Documentation/driver-api/dcdbas.rst> for more details on the driver
          and the Dell systems on which Dell systems management software makes
          use of this driver.

          Say Y or M here to enable the driver for use by Dell systems
          management software such as Dell OpenManage.

#
# The DELL_SMBIOS driver depends on ACPI_WMI and/or DCDBAS if those
# backends are selected. The "depends" line prevents a configuration
# where DELL_SMBIOS=y while either of those dependencies =m.
#
config DELL_SMBIOS
        tristate "Dell SMBIOS driver"
        depends on DCDBAS || DCDBAS=n
        depends on ACPI_WMI || ACPI_WMI=n
        ---help---
        This provides support for the Dell SMBIOS calling interface.
        If you have a Dell computer you should enable this option.

        Be sure to select at least one backend for it to work properly.

config DELL_SMBIOS_WMI
        bool "Dell SMBIOS driver WMI backend"
        default y
        depends on ACPI_WMI
        select DELL_WMI_DESCRIPTOR
        depends on DELL_SMBIOS
        ---help---
        This provides an implementation for the Dell SMBIOS calling interface
        communicated over ACPI-WMI.

        If you have a Dell computer from >2007 you should say Y here.
        If you aren't sure and this module doesn't work for your computer
        it just won't load.

config DELL_SMBIOS_SMM
        bool "Dell SMBIOS driver SMM backend"
        default y
        depends on DCDBAS
        depends on DELL_SMBIOS
        ---help---
        This provides an implementation for the Dell SMBIOS calling interface
        communicated over SMI/SMM.

        If you have a Dell computer from <=2017 you should say Y here.
        If you aren't sure and this module doesn't work for your computer
        it just won't load.

config DELL_LAPTOP
        tristate "Dell Laptop Extras"
        depends on DMI
        depends on BACKLIGHT_CLASS_DEVICE
        depends on ACPI_VIDEO || ACPI_VIDEO = n
        depends on RFKILL || RFKILL = n
        depends on SERIO_I8042
        depends on DELL_SMBIOS
        select POWER_SUPPLY
        select LEDS_CLASS
        select NEW_LEDS
        select LEDS_TRIGGERS
        select LEDS_TRIGGER_AUDIO
        ---help---
        This driver adds support for rfkill and backlight control to Dell
        laptops (except for some models covered by the Compal driver).

config DELL_WMI
        tristate "Dell WMI notifications"
        depends on ACPI_WMI
        depends on DMI
        depends on INPUT
        depends on ACPI_VIDEO || ACPI_VIDEO = n
        depends on DELL_SMBIOS
        select DELL_WMI_DESCRIPTOR
        select INPUT_SPARSEKMAP
        ---help---
          Say Y here if you want to support WMI-based hotkeys on Dell laptops.

          To compile this driver as a module, choose M here: the module will
          be called dell-wmi.

config DELL_WMI_DESCRIPTOR
        tristate
        depends on ACPI_WMI

config DELL_WMI_AIO
        tristate "WMI Hotkeys for Dell All-In-One series"
        depends on ACPI_WMI
        depends on INPUT
        select INPUT_SPARSEKMAP
        ---help---
          Say Y here if you want to support WMI-based hotkeys on Dell
          All-In-One machines.

          To compile this driver as a module, choose M here: the module will
          be called dell-wmi-aio.

config DELL_WMI_LED
        tristate "External LED on Dell Business Netbooks"
        depends on LEDS_CLASS
        depends on ACPI_WMI
        help
          This adds support for the Latitude 2100 and similar
          notebooks that have an external LED.

config DELL_SMO8800
        tristate "Dell Latitude freefall driver (ACPI SMO88XX)"
        depends on ACPI
        ---help---
          Say Y here if you want to support SMO88XX freefall devices
          on Dell Latitude laptops.

          To compile this driver as a module, choose M here: the module will
          be called dell-smo8800.

config DELL_RBTN
        tristate "Dell Airplane Mode Switch driver"
        depends on ACPI
        depends on INPUT
        depends on RFKILL
        ---help---
          Say Y here if you want to support Dell Airplane Mode Switch ACPI
          device on Dell laptops. Sometimes it has names: DELLABCE or DELRBTN.
          This driver register rfkill device or input hotkey device depending
          on hardware type (hw switch slider or keyboard toggle button). For
          rfkill devices it receive HW switch events and set correct hard
          rfkill state.

          To compile this driver as a module, choose M here: the module will
          be called dell-rbtn.

config DELL_RBU
        tristate "BIOS update support for DELL systems via sysfs"
        depends on X86
        select FW_LOADER
        select FW_LOADER_USER_HELPER
        help
         Say m if you want to have the option of updating the BIOS for your
         DELL system. Note you need a Dell OpenManage or Dell Update package (DUP)
         supporting application to communicate with the BIOS regarding the new
         image for the image update to take effect.
         See <file:Documentation/admin-guide/dell_rbu.rst> for more details on the driver.


config FUJITSU_LAPTOP
        tristate "Fujitsu Laptop Extras"
        depends on ACPI
        depends on INPUT
        depends on BACKLIGHT_CLASS_DEVICE
        depends on ACPI_VIDEO || ACPI_VIDEO = n
        select INPUT_SPARSEKMAP
        select LEDS_CLASS
        ---help---
          This is a driver for laptops built by Fujitsu:

            * P2xxx/P5xxx/S6xxx/S7xxx series Lifebooks
            * Possibly other Fujitsu laptop models
            * Tested with S6410 and S7020

          It adds support for LCD brightness control and some hotkeys.

          If you have a Fujitsu laptop, say Y or M here.

config FUJITSU_TABLET
       tristate "Fujitsu Tablet Extras"
       depends on ACPI
       depends on INPUT
       ---help---
         This is a driver for tablets built by Fujitsu:

           * Lifebook P1510/P1610/P1620/Txxxx
           * Stylistic ST5xxx
           * Possibly other Fujitsu tablet models

         It adds support for the panel buttons, docking station detection,
         tablet/notebook mode detection for convertible and
         orientation detection for docked slates.

         If you have a Fujitsu convertible or slate, say Y or M here.

config AMILO_RFKILL
        tristate "Fujitsu-Siemens Amilo rfkill support"
        depends on RFKILL
        depends on SERIO_I8042
        ---help---
          This is a driver for enabling wifi on some Fujitsu-Siemens Amilo
          laptops.

config GPD_POCKET_FAN
        tristate "GPD Pocket Fan Controller support"
        depends on ACPI
        depends on THERMAL
        ---help---
          Driver for the GPD Pocket vendor specific FAN02501 ACPI device
          which controls the fan speed on the GPD Pocket.

          Without this driver the fan on the Pocket will stay off independent
          of the CPU temperature. Say Y or M if the kernel may be used on a
          GPD pocket.

config TC1100_WMI
        tristate "HP Compaq TC1100 Tablet WMI Extras"
        depends on !X86_64
        depends on ACPI
        depends on ACPI_WMI
        ---help---
          This is a driver for the WMI extensions (wireless and bluetooth power
          control) of the HP Compaq TC1100 tablet.

config HP_ACCEL
        tristate "HP laptop accelerometer"
        depends on INPUT && ACPI
        depends on SERIO_I8042
        select SENSORS_LIS3LV02D
        select NEW_LEDS
        select LEDS_CLASS
        help
          This driver provides support for the "Mobile Data Protection System 3D"
          or "3D DriveGuard" feature of HP laptops. On such systems the driver
          should load automatically (via ACPI alias).

          Support for a led indicating disk protection will be provided as
          hp::hddprotect. For more information on the feature, refer to
          Documentation/misc-devices/lis3lv02d.rst.

          To compile this driver as a module, choose M here: the module will
          be called hp_accel.

config HP_WIRELESS
        tristate "HP wireless button"
        depends on ACPI
        depends on INPUT
        help
         This driver provides supports for new HP wireless button for Windows 8.
         On such systems the driver should load automatically (via ACPI alias).

         To compile this driver as a module, choose M here: the module will
         be called hp-wireless.

config HP_WMI
        tristate "HP WMI extras"
        depends on ACPI_WMI
        depends on INPUT
        depends on RFKILL || RFKILL = n
        select INPUT_SPARSEKMAP
        help
         Say Y here if you want to support WMI-based hotkeys on HP laptops and
         to read data from WMI such as docking or ambient light sensor state.

         To compile this driver as a module, choose M here: the module will
         be called hp-wmi.

config LG_LAPTOP
        tristate "LG Laptop Extras"
        depends on ACPI
        depends on ACPI_WMI
        depends on INPUT
        select INPUT_SPARSEKMAP
        select LEDS_CLASS
        help
         This driver adds support for hotkeys as well as control of keyboard
         backlight, battery maximum charge level and various other ACPI
         features.

         If you have an LG Gram laptop, say Y or M here.

config MSI_LAPTOP
        tristate "MSI Laptop Extras"
        depends on ACPI
        depends on BACKLIGHT_CLASS_DEVICE
        depends on ACPI_VIDEO || ACPI_VIDEO = n
        depends on RFKILL
        depends on INPUT && SERIO_I8042
        select INPUT_SPARSEKMAP
        ---help---
          This is a driver for laptops built by MSI (MICRO-STAR
          INTERNATIONAL):

          MSI MegaBook S270 (MS-1013)
          Cytron/TCM/Medion/Tchibo MD96100/SAM2000

          It adds support for Bluetooth, WLAN and LCD brightness control.

          More information about this driver is available at
          <http://0pointer.de/lennart/tchibo.html>.

          If you have an MSI S270 laptop, say Y or M here.

config PANASONIC_LAPTOP
        tristate "Panasonic Laptop Extras"
        depends on INPUT && ACPI
        depends on BACKLIGHT_CLASS_DEVICE
        select INPUT_SPARSEKMAP
        ---help---
          This driver adds support for access to backlight control and hotkeys
          on Panasonic Let's Note laptops.

          If you have a Panasonic Let's note laptop (such as the R1(N variant),
          R2, R3, R5, T2, W2 and Y2 series), say Y.

config COMPAL_LAPTOP
        tristate "Compal (and others) Laptop Extras"
        depends on ACPI
        depends on BACKLIGHT_CLASS_DEVICE
        depends on ACPI_VIDEO || ACPI_VIDEO = n
        depends on RFKILL
        depends on HWMON
        depends on POWER_SUPPLY
        ---help---
          This is a driver for laptops built by Compal, and some models by
          other brands (e.g. Dell, Toshiba).

          It adds support for rfkill, Bluetooth, WLAN, LCD brightness, hwmon
          and battery charging level control.

config SONY_LAPTOP
        tristate "Sony Laptop Extras"
        depends on ACPI
        depends on ACPI_VIDEO || ACPI_VIDEO = n
        depends on BACKLIGHT_CLASS_DEVICE
        depends on INPUT
        depends on RFKILL
          ---help---
          This mini-driver drives the SNC and SPIC devices present in the ACPI
          BIOS of the Sony Vaio laptops.

          It gives access to some extra laptop functionalities like Bluetooth,
          screen brightness control, Fn keys and allows powering on/off some
          devices.

          Read <file:Documentation/admin-guide/laptops/sony-laptop.rst> for more information.

config SONYPI_COMPAT
        bool "Sonypi compatibility"
        depends on SONY_LAPTOP
          ---help---
          Build the sonypi driver compatibility code into the sony-laptop driver.

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 INPUT_SPARSEKMAP
        help
          This is a driver for Lenovo IdeaPad netbooks contains drivers for
          rfkill switch, hotkey, fan control and backlight control.

config SURFACE3_WMI
        tristate "Surface 3 WMI Driver"
        depends on ACPI_WMI
        depends on DMI
        depends on INPUT
        depends on SPI
        ---help---
          Say Y here if you have a Surface 3.

          To compile this driver as a module, choose M here: the module will
          be called surface3-wmi.

config THINKPAD_ACPI
        tristate "ThinkPad ACPI Laptop Extras"
        depends on ACPI
        depends on ACPI_BATTERY
        depends on INPUT
        depends on RFKILL || RFKILL = n
        depends on ACPI_VIDEO || ACPI_VIDEO = n
        depends on BACKLIGHT_CLASS_DEVICE
        select HWMON
        select NVRAM
        select NEW_LEDS
        select LEDS_CLASS
        select LEDS_TRIGGERS
        select LEDS_TRIGGER_AUDIO
        ---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 SENSORS_HDAPS
        tristate "Thinkpad Hard Drive Active Protection System (hdaps)"
        depends on INPUT
        help
          This driver provides support for the IBM Hard Drive Active Protection
          System (hdaps), which provides an accelerometer and other misc. data.
          ThinkPads starting with the R50, T41, and X40 are supported.  The
          accelerometer data is readable via sysfs.

          This driver also provides an absolute input class device, allowing
          the laptop to act as a pinball machine-esque joystick.

          If your ThinkPad is not recognized by the driver, please update to latest
          BIOS. This is especially the case for some R52 ThinkPads.

          Say Y here if you have an applicable laptop and want to experience
          the awesome power of hdaps.

config INTEL_MENLOW
        tristate "Thermal Management driver for Intel menlow platform"
        depends on ACPI_THERMAL
        select THERMAL
        ---help---
          ACPI thermal management enhancement driver on
          Intel Menlow platform.

          If unsure, say N.

config EEEPC_LAPTOP
        tristate "Eee PC Hotkey Driver"
        depends on ACPI
        depends on INPUT
        depends on RFKILL || RFKILL = n
        depends on ACPI_VIDEO || ACPI_VIDEO = n
        depends on HOTPLUG_PCI
        depends on BACKLIGHT_CLASS_DEVICE
        select HWMON
        select LEDS_CLASS
        select NEW_LEDS
        select INPUT_SPARSEKMAP
        ---help---
          This driver supports the Fn-Fx keys on Eee PC laptops.

          It  also gives access to some extra laptop functionalities like
          Bluetooth, backlight and allows powering on/off some other
          devices.

          If you have an Eee PC laptop, say Y or M here. If this driver
          doesn't work on your Eee PC, try eeepc-wmi instead.

config ASUS_WMI
        tristate "ASUS WMI Driver"
        depends on ACPI_WMI
        depends on ACPI_BATTERY
        depends on INPUT
        depends on HWMON
        depends on BACKLIGHT_CLASS_DEVICE
        depends on RFKILL || RFKILL = n
        depends on HOTPLUG_PCI
        depends on ACPI_VIDEO || ACPI_VIDEO = n
        select INPUT_SPARSEKMAP
        select LEDS_CLASS
        select NEW_LEDS
        ---help---
          Say Y here if you have a WMI aware Asus laptop (like Eee PCs or new
          Asus Notebooks).

          To compile this driver as a module, choose M here: the module will
          be called asus-wmi.

config ASUS_NB_WMI
        tristate "Asus Notebook WMI Driver"
        depends on ASUS_WMI
        depends on SERIO_I8042 || SERIO_I8042 = n
        ---help---
          This is a driver for newer Asus notebooks. It adds extra features
          like wireless radio and bluetooth control, leds, hotkeys, backlight...

          For more information, see
          <file:Documentation/ABI/testing/sysfs-platform-asus-wmi>

          If you have an ACPI-WMI compatible Asus Notebook, say Y or M
          here.

config EEEPC_WMI
        tristate "Eee PC WMI Driver"
        depends on ASUS_WMI
        ---help---
          This is a driver for newer Eee PC laptops. It adds extra features
          like wireless radio and bluetooth control, leds, hotkeys, backlight...

          For more information, see
          <file:Documentation/ABI/testing/sysfs-platform-asus-wmi>

          If you have an ACPI-WMI compatible Eee PC laptop (>= 1000), say Y or M
          here.

config ASUS_WIRELESS
        tristate "Asus Wireless Radio Control Driver"
        depends on ACPI
        depends on INPUT
        select NEW_LEDS
        select LEDS_CLASS
        ---help---
          The Asus Wireless Radio Control handles the airplane mode hotkey
          present on some Asus laptops.

          Say Y or M here if you have an ASUS notebook with an airplane mode
          hotkey.

          If you choose to compile this driver as a module the module will be
          called asus-wireless.

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 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 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 INTEL_WMI_THUNDERBOLT
        tristate "Intel WMI thunderbolt force power driver"
        depends on ACPI_WMI
        ---help---
          Say Y here if you want to be able to use the WMI interface on select
          systems to force the power control of Intel Thunderbolt controllers.
          This is useful for updating the firmware when devices are not plugged
          into the controller.

          To compile this driver as a module, choose M here: the module will
          be called intel-wmi-thunderbolt.

config XIAOMI_WMI
          tristate "Xiaomi WMI key driver"
          depends on ACPI_WMI
          depends on INPUT
          help
          Say Y here if you want to support WMI-based keys on Xiaomi notebooks.

          To compile this driver as a module, choose M here: the module will
          be called xiaomi-wmi.

config MSI_WMI
        tristate "MSI WMI extras"
        depends on ACPI_WMI
        depends on INPUT
        depends on BACKLIGHT_CLASS_DEVICE
        depends on ACPI_VIDEO || ACPI_VIDEO = n
        select INPUT_SPARSEKMAP
        help
         Say Y here if you want to support WMI-based hotkeys on MSI laptops.

         To compile this driver as a module, choose M here: the module will
         be called msi-wmi.

config PEAQ_WMI
        tristate "PEAQ 2-in-1 WMI hotkey driver"
        depends on ACPI_WMI
        depends on INPUT
        help
         Say Y here if you want to support WMI-based hotkeys on PEAQ 2-in-1s.

config TOPSTAR_LAPTOP
        tristate "Topstar Laptop Extras"
        depends on ACPI
        depends on INPUT
        select INPUT_SPARSEKMAP
        select LEDS_CLASS
        select NEW_LEDS
        ---help---
          This driver adds support for hotkeys found on Topstar laptops.

          If you have a Topstar laptop, say Y or M here.

config ACPI_TOSHIBA
        tristate "Toshiba Laptop Extras"
        depends on ACPI
        depends on ACPI_WMI
        select LEDS_CLASS
        select NEW_LEDS
        depends on BACKLIGHT_CLASS_DEVICE
        depends on INPUT
        depends on SERIO_I8042 || SERIO_I8042 = n
        depends on ACPI_VIDEO || ACPI_VIDEO = n
        depends on RFKILL || RFKILL = n
        depends on IIO
        select INPUT_SPARSEKMAP
        ---help---
          This driver adds support for access to certain system settings
          on "legacy free" Toshiba laptops.  These laptops can be recognized by
          their lack of a BIOS setup menu and APM support.

          On these machines, all system configuration is handled through the
          ACPI.  This driver is required for access to controls not covered
          by the general ACPI drivers, such as LCD brightness, video output,
          etc.

          This driver differs from the non-ACPI Toshiba laptop driver (located
          under "Processor type and features") in several aspects.
          Configuration is accessed by reading and writing text files in the
          /proc tree instead of by program interface to /dev.  Furthermore, no
          power management functions are exposed, as those are handled by the
          general ACPI drivers.

          More information about this driver is available at
          <http://memebeam.org/toys/ToshibaAcpiDriver>.

          If you have a legacy free Toshiba laptop (such as the Libretto L1
          series), say Y.

config TOSHIBA_BT_RFKILL
        tristate "Toshiba Bluetooth RFKill switch support"
        depends on ACPI
        depends on RFKILL || RFKILL = n
        ---help---
          This driver adds support for Bluetooth events for the RFKill
          switch on modern Toshiba laptops with full ACPI support and
          an RFKill switch.

          This driver handles RFKill events for the TOS6205 Bluetooth,
          and re-enables it when the switch is set back to the 'on'
          position.

          If you have a modern Toshiba laptop with a Bluetooth and an
          RFKill switch (such as the Portege R500), say Y.

config TOSHIBA_HAPS
        tristate "Toshiba HDD Active Protection Sensor"
        depends on ACPI
        ---help---
          This driver adds support for the built-in accelerometer
          found on recent Toshiba laptops equipped with HID TOS620A
          device.

          This driver receives ACPI notify events 0x80 when the sensor
          detects a sudden move or a harsh vibration, as well as an
          ACPI notify event 0x81 whenever the movement or vibration has
          been stabilized.

          Also provides sysfs entries to get/set the desired protection
          level and resetting the HDD protection interface.

          If you have a recent Toshiba laptop with a built-in accelerometer
          device, say Y.

config TOSHIBA_WMI
        tristate "Toshiba WMI Hotkeys Driver (EXPERIMENTAL)"
        depends on ACPI_WMI
        depends on INPUT
        select INPUT_SPARSEKMAP
        ---help---
          This driver adds hotkey monitoring support to some Toshiba models
          that manage the hotkeys via WMI events.

          WARNING: This driver is incomplete as it lacks a proper keymap and the
          *notify function only prints the ACPI event type value. Be warned that
          you will need to provide some information if you have a Toshiba model
          with WMI event hotkeys and want to help with the development of this
          driver.

          If you have a WMI-based hotkeys Toshiba laptop, say Y or M here.

config ACPI_CMPC
        tristate "CMPC Laptop Extras"
        depends on ACPI && INPUT
        depends on RFKILL || RFKILL=n
        select BACKLIGHT_CLASS_DEVICE
        help
          Support for Intel Classmate PC ACPI devices, including some
          keys as input device, backlight device, tablet and accelerometer
          devices.

config INTEL_CHT_INT33FE
        tristate "Intel Cherry Trail ACPI INT33FE Driver"
        depends on X86 && ACPI && I2C && REGULATOR
        depends on CHARGER_BQ24190=y || (CHARGER_BQ24190=m && m)
        depends on USB_ROLES_INTEL_XHCI=y || (USB_ROLES_INTEL_XHCI=m && m)
        depends on TYPEC_MUX_PI3USB30532=y || (TYPEC_MUX_PI3USB30532=m && m)
        ---help---
          This driver add support for the INT33FE ACPI device found on
          some Intel Cherry Trail devices.

          There are two kinds of INT33FE ACPI device possible: for hardware
          with USB Type-C and Micro-B connectors. This driver supports both.

          The INT33FE ACPI device has a CRS table with I2cSerialBusV2
          resources for Fuel Gauge Controller and (in the Type-C variant)
          FUSB302 USB Type-C Controller and PI3USB30532 USB switch.
          This driver instantiates i2c-clients for these, so that standard
          i2c drivers for these chips can bind to the them.

          If you enable this driver it is advised to also select
          CONFIG_BATTERY_BQ27XXX=m or CONFIG_BATTERY_BQ27XXX_I2C=m for Micro-B
          device and CONFIG_TYPEC_FUSB302=m and CONFIG_BATTERY_MAX17042=m
          for Type-C device.


config INTEL_INT0002_VGPIO
        tristate "Intel ACPI INT0002 Virtual GPIO driver"
        depends on GPIOLIB && ACPI
        select GPIOLIB_IRQCHIP
        ---help---
          Some peripherals on Bay Trail and Cherry Trail platforms signal a
          Power Management Event (PME) to the Power Management Controller (PMC)
          to wakeup the system. When this happens software needs to explicitly
          clear the PME bus 0 status bit in the GPE0a_STS register to avoid an
          IRQ storm on IRQ 9.

          This is modelled in ACPI through the INT0002 ACPI device, which is
          called a "Virtual GPIO controller" in ACPI because it defines the
          event handler to call when the PME triggers through _AEI and _L02
          methods as would be done for a real GPIO interrupt in ACPI.

          To compile this driver as a module, choose M here: the module will
          be called intel_int0002_vgpio.

config INTEL_HID_EVENT
        tristate "INTEL HID Event"
        depends on ACPI
        depends on INPUT
        select INPUT_SPARSEKMAP
        help
          This driver provides support for the Intel HID Event hotkey interface.
          Some laptops require this driver for hotkey support.

          To compile this driver as a module, choose M here: the module will
          be called intel_hid.

config INTEL_VBTN
        tristate "INTEL VIRTUAL BUTTON"
        depends on ACPI
        depends on INPUT
        select INPUT_SPARSEKMAP
        help
          This driver provides support for the Intel Virtual Button interface.
          Some laptops require this driver for power button support.

          To compile this driver as a module, choose M here: the module will
          be called intel_vbtn.

config INTEL_SCU_IPC
        bool "Intel SCU IPC Support"
        depends on X86_INTEL_MID
        default y
        ---help---
          IPC is used to bridge the communications between kernel and SCU on
          some embedded Intel x86 platforms. This is not needed for PC-type
          machines.

config INTEL_SCU_IPC_UTIL
        tristate "Intel SCU IPC utility driver"
        depends on INTEL_SCU_IPC
        ---help---
          The IPC Util driver provides an interface with the SCU enabling
          low level access for debug work and updating the firmware. Say
          N unless you will be doing this on an Intel MID platform.

config INTEL_MID_POWER_BUTTON
        tristate "power button driver for Intel MID platforms"
        depends on INTEL_SCU_IPC && INPUT
        help
          This driver handles the power button on the Intel MID platforms.

          If unsure, say N.

config INTEL_MFLD_THERMAL
       tristate "Thermal driver for Intel Medfield platform"
       depends on MFD_INTEL_MSIC && THERMAL
       help
         Say Y here to enable thermal driver support for the  Intel Medfield
         platform.

config INTEL_IPS
        tristate "Intel Intelligent Power Sharing"
        depends on ACPI && PCI
        ---help---
          Intel Calpella platforms support dynamic power sharing between the
          CPU and GPU, maximizing performance in a given TDP.  This driver,
          along with the CPU frequency and i915 drivers, provides that
          functionality.  If in doubt, say Y here; it will only load on
          supported platforms.

config INTEL_IMR
        bool "Intel Isolated Memory Region support"
        depends on X86_INTEL_QUARK && IOSF_MBI
        ---help---
          This option provides a means to manipulate Isolated Memory Regions.
          IMRs are a set of registers that define read and write access masks
          to prohibit certain system agents from accessing memory with 1 KiB
          granularity.

          IMRs make it possible to control read/write access to an address
          by hardware agents inside the SoC. Read and write masks can be
          defined for:
                - eSRAM flush
                - Dirty CPU snoop (write only)
                - RMU access
                - PCI Virtual Channel 0/Virtual Channel 1
                - SMM mode
                - Non SMM mode

          Quark contains a set of eight IMR registers and makes use of those
          registers during its bootup process.

          If you are running on a Galileo/Quark say Y here.

config INTEL_PMC_CORE
        tristate "Intel PMC Core driver"
        depends on PCI
        ---help---
          The Intel Platform Controller Hub for Intel Core SoCs provides access
          to Power Management Controller registers via a PCI interface. This
          driver can utilize debugging capabilities and supported features as
          exposed by the Power Management Controller.

          Supported features:
                - SLP_S0_RESIDENCY counter
                - PCH IP Power Gating status
                - LTR Ignore
                - MPHY/PLL gating status (Sunrisepoint PCH only)

config IBM_RTL
        tristate "Device driver to enable PRTL support"
        depends on PCI
        ---help---
         Enable support for IBM Premium Real Time Mode (PRTM).
         This module will allow you the enter and exit PRTM in the BIOS via
         sysfs on platforms that support this feature.  System in PRTM will
         not receive CPU-generated SMIs for recoverable errors.  Use of this
         feature without proper support may void your hardware warranty.

         If the proper BIOS support is found the driver will load and create
         /sys/devices/system/ibm_rtl/.  The "state" variable will indicate
         whether or not the BIOS is in PRTM.
         state = 0 (BIOS SMIs on)
         state = 1 (BIOS SMIs off)

config XO1_RFKILL
        tristate "OLPC XO-1 software RF kill switch"
        depends on OLPC || COMPILE_TEST
        depends on RFKILL
        ---help---
          Support for enabling/disabling the WLAN interface on the OLPC XO-1
          laptop.

config XO15_EBOOK
        tristate "OLPC XO-1.5 ebook switch"
        depends on OLPC || COMPILE_TEST
        depends on ACPI && INPUT
        ---help---
          Support for the ebook switch on the OLPC XO-1.5 laptop.

          This switch is triggered as the screen is rotated and folded down to
          convert the device into ebook form.

config SAMSUNG_LAPTOP
        tristate "Samsung Laptop driver"
        depends on RFKILL || RFKILL = n
        depends on ACPI_VIDEO || ACPI_VIDEO = n
        depends on BACKLIGHT_CLASS_DEVICE
        select LEDS_CLASS
        select NEW_LEDS
        ---help---
          This module implements a driver for a wide range of different
          Samsung laptops.  It offers control over the different
          function keys, wireless LED, LCD backlight level.

          It may also provide some sysfs files described in
          <file:Documentation/ABI/testing/sysfs-driver-samsung-laptop>

          To compile this driver as a module, choose M here: the module
          will be called samsung-laptop.

config MXM_WMI
       tristate "WMI support for MXM Laptop Graphics"
       depends on ACPI_WMI
       ---help---
          MXM is a standard for laptop graphics cards, the WMI interface
          is required for switchable nvidia graphics machines

config INTEL_OAKTRAIL
        tristate "Intel Oaktrail Platform Extras"
        depends on ACPI
        depends on ACPI_VIDEO || ACPI_VIDEO = n
        depends on RFKILL && BACKLIGHT_CLASS_DEVICE && ACPI
        ---help---
          Intel Oaktrail platform need this driver to provide interfaces to
          enable/disable the Camera, WiFi, BT etc. devices. If in doubt, say Y
          here; it will only load on supported platforms.

config SAMSUNG_Q10
        tristate "Samsung Q10 Extras"
        depends on ACPI
        select BACKLIGHT_CLASS_DEVICE
        ---help---
          This driver provides support for backlight control on Samsung Q10
          and related laptops, including Dell Latitude X200.

config APPLE_GMUX
        tristate "Apple Gmux Driver"
        depends on ACPI && PCI
        depends on PNP
        depends on BACKLIGHT_CLASS_DEVICE
        depends on BACKLIGHT_APPLE=n || BACKLIGHT_APPLE
        depends on ACPI_VIDEO=n || ACPI_VIDEO
        ---help---
          This driver provides support for the gmux device found on many
          Apple laptops, which controls the display mux for the hybrid
          graphics as well as the backlight. Currently only backlight
          control is supported by the driver.

config INTEL_RST
        tristate "Intel Rapid Start Technology Driver"
        depends on ACPI
        ---help---
          This driver provides support for modifying paramaters on systems
          equipped with Intel's Rapid Start Technology. When put in an ACPI
          sleep state, these devices will wake after either a configured
          timeout or when the system battery reaches a critical state,
          automatically copying memory contents to disk. On resume, the
          firmware will copy the memory contents back to RAM and resume the OS
          as usual.

config INTEL_SMARTCONNECT
        tristate "Intel Smart Connect disabling driver"
        depends on ACPI
        ---help---
          Intel Smart Connect is a technology intended to permit devices to
          update state by resuming for a short period of time at regular
          intervals. If a user enables this functionality under Windows and
          then reboots into Linux, the system may remain configured to resume
          on suspend. In the absence of any userspace to support it, the system
          will then remain awake until something triggers another suspend.

          This driver checks to determine whether the device has Intel Smart
          Connect enabled, and if so disables it.

config INTEL_PMC_IPC
        tristate "Intel PMC IPC Driver"
        depends on ACPI && PCI
        ---help---
        This driver provides support for PMC control on some Intel platforms.
        The PMC is an ARC processor which defines IPC commands for communication
        with other entities in the CPU.

config INTEL_BXTWC_PMIC_TMU
        tristate "Intel BXT Whiskey Cove TMU Driver"
        depends on REGMAP
        depends on INTEL_SOC_PMIC_BXTWC && INTEL_PMC_IPC
        ---help---
          Select this driver to use Intel BXT Whiskey Cove PMIC TMU feature.
          This driver enables the alarm wakeup functionality in the TMU unit
          of Whiskey Cove PMIC.

config SURFACE_PRO3_BUTTON
        tristate "Power/home/volume buttons driver for Microsoft Surface Pro 3/4 tablet"
        depends on ACPI && INPUT
        ---help---
          This driver handles the power/home/volume buttons on the Microsoft Surface Pro 3/4 tablet.

config SURFACE_3_BUTTON
        tristate "Power/home/volume buttons driver for Microsoft Surface 3 tablet"
        depends on ACPI && KEYBOARD_GPIO && I2C
        ---help---
          This driver handles the power/home/volume buttons on the Microsoft Surface 3 tablet.

config INTEL_PUNIT_IPC
        tristate "Intel P-Unit IPC Driver"
        ---help---
          This driver provides support for Intel P-Unit Mailbox IPC mechanism,
          which is used to bridge the communications between kernel and P-Unit.

config INTEL_TELEMETRY
        tristate "Intel SoC Telemetry Driver"
        depends on INTEL_PMC_IPC && INTEL_PUNIT_IPC && X86_64
        ---help---
          This driver provides interfaces to configure and use
          telemetry for INTEL SoC from APL onwards. It is also
          used to get various SoC events and parameters
          directly via debugfs files. Various tools may use
          this interface for SoC state monitoring.

config MLX_PLATFORM
        tristate "Mellanox Technologies platform support"
        depends on I2C && REGMAP
        ---help---
          This option enables system support for the Mellanox Technologies
          platform. The Mellanox systems provide data center networking
          solutions based on Virtual Protocol Interconnect (VPI) technology
          enable seamless connectivity to 56/100Gb/s InfiniBand or 10/40/56GbE
          connection.

          If you have a Mellanox system, say Y or M here.

config INTEL_TURBO_MAX_3
        bool "Intel Turbo Boost Max Technology 3.0 enumeration driver"
        depends on X86_64 && SCHED_MC_PRIO
        ---help---
          This driver reads maximum performance ratio of each CPU and set up
          the scheduler priority metrics. In this way scheduler can prefer
          CPU with higher performance to schedule tasks.
          This driver is only required when the system is not using Hardware
          P-States (HWP). In HWP mode, priority can be read from ACPI tables.

config TOUCHSCREEN_DMI
        bool "DMI based touchscreen configuration info"
        depends on ACPI && DMI && I2C=y && TOUCHSCREEN_SILEAD
        ---help---
          Certain ACPI based tablets with e.g. Silead or Chipone touchscreens
          do not have enough data in ACPI tables for the touchscreen driver to
          handle the touchscreen properly, as OEMs expect the data to be baked
          into the tablet model specific version of the driver shipped with the
          the OS-image for the device. This option supplies the missing info.
          Enable this for x86 tablets with Silead or Chipone touchscreens.

config INTEL_CHTDC_TI_PWRBTN
        tristate "Intel Cherry Trail Dollar Cove TI power button driver"
        depends on INTEL_SOC_PMIC_CHTDC_TI
        depends on INPUT
        ---help---
          This option adds a power button driver driver for Dollar Cove TI
          PMIC on Intel Cherry Trail devices.

          To compile this driver as a module, choose M here: the module
          will be called intel_chtdc_ti_pwrbtn.

config INTEL_MRFLD_PWRBTN
        tristate "Intel Merrifield Basin Cove power button driver"
        depends on INTEL_SOC_PMIC_MRFLD
        depends on INPUT
        ---help---
          This option adds a power button driver for Basin Cove PMIC
          on Intel Merrifield devices.

          To compile this driver as a module, choose M here: the module
          will be called intel_mrfld_pwrbtn.

config I2C_MULTI_INSTANTIATE
        tristate "I2C multi instantiate pseudo device driver"
        depends on I2C && ACPI
        help
          Some ACPI-based systems list multiple i2c-devices in a single ACPI
          firmware-node. This driver will instantiate separate i2c-clients
          for each device in the firmware-node.

          To compile this driver as a module, choose M here: the module
          will be called i2c-multi-instantiate.

config INTEL_ATOMISP2_PM
        tristate "Intel AtomISP2 dummy / power-management driver"
        depends on PCI && IOSF_MBI && PM
        help
          Power-management driver for Intel's Image Signal Processor found on
          Bay Trail and Cherry Trail devices. This dummy driver's sole purpose
          is to turn the ISP off (put it in D3) to save power and to allow
          entering of S0ix modes.

          To compile this driver as a module, choose M here: the module
          will be called intel_atomisp2_pm.

config HUAWEI_WMI
        tristate "Huawei WMI laptop extras driver"
        depends on ACPI_BATTERY
        depends on ACPI_WMI
        depends on INPUT
        select INPUT_SPARSEKMAP
        select LEDS_CLASS
        select LEDS_TRIGGERS
        select LEDS_TRIGGER_AUDIO
        select NEW_LEDS
        help
          This driver provides support for Huawei WMI hotkeys, battery charge
          control, fn-lock, mic-mute LED, and other extra features.

          To compile this driver as a module, choose M here: the module
          will be called huawei-wmi.

config PCENGINES_APU2
        tristate "PC Engines APUv2/3 front button and LEDs driver"
        depends on INPUT && INPUT_KEYBOARD && GPIOLIB
        depends on LEDS_CLASS
        select GPIO_AMD_FCH
        select KEYBOARD_GPIO_POLLED
        select LEDS_GPIO
        help
          This driver provides support for the front button and LEDs on
          PC Engines APUv2/APUv3 board.

          To compile this driver as a module, choose M here: the module
          will be called pcengines-apuv2.

config INTEL_UNCORE_FREQ_CONTROL
        tristate "Intel Uncore frequency control driver"
        depends on X86_64
        help
          This driver allows control of uncore frequency limits on
          supported server platforms.
          Uncore frequency controls RING/LLC (last-level cache) clocks.

          To compile this driver as a module, choose M here: the module
          will be called intel-uncore-frequency.

source "drivers/platform/x86/intel_speed_select_if/Kconfig"

config SYSTEM76_ACPI
        tristate "System76 ACPI Driver"
        depends on ACPI
        select NEW_LEDS
        select LEDS_CLASS
        select LEDS_TRIGGERS
        help
          This is a driver for System76 laptops running open firmware. It adds
          support for Fn-Fx key combinations, keyboard backlight, and airplane mode
          LEDs.

          If you have a System76 laptop running open firmware, say Y or M here.

endif # X86_PLATFORM_DEVICES

config PMC_ATOM
       def_bool y
       depends on PCI
       select COMMON_CLK