diff options
| author | Mario Limonciello <mario.limonciello@dell.com> | 2017-09-08 10:23:11 -0500 |
|---|---|---|
| committer | Andy Shevchenko <andriy.shevchenko@linux.intel.com> | 2017-09-20 16:07:22 +0300 |
| commit | ce6a90027c10f970f872de5db0294f9e3e969f1c (patch) | |
| tree | 8f370602c3ae125a6bc68dc3489f395982937069 /drivers/platform/x86/Kconfig | |
| parent | 2bd6bf03f4c1c59381d62c61d03f6cc3fe71f66e (diff) | |
platform/x86: Add driver to force WMI Thunderbolt controller power status
Current implementations of Intel Thunderbolt controllers will go
into a low power mode when not in use.
Many machines containing these controllers also have a GPIO wired up
that can force the controller awake. This is offered via a ACPI-WMI
interface intended to be manipulated by a userspace utility.
This mechanism is provided by Intel to OEMs to include in BIOS.
It uses an industry wide GUID that is populated in a separate _WDG
entry with no binary MOF.
This interface allows software such as fwupd to wake up thunderbolt
controllers to query the firmware version or flash new firmware.
Signed-off-by: Mario Limonciello <mario.limonciello@dell.com>
Reviewed-by: Mika Westerberg <mika.westerberg@linux.intel.com>
Reviewed-by: Yehezkel Bernat <yehezkel.bernat@intel.com>
Signed-off-by: Darren Hart (VMware) <dvhart@infradead.org>
[andy fixed merge conflicts and bump kernel version for ABI]
Signed-off-by: Andy Shevchenko <andriy.shevchenko@linux.intel.com>
Diffstat (limited to 'drivers/platform/x86/Kconfig')
| -rw-r--r-- | drivers/platform/x86/Kconfig | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/drivers/platform/x86/Kconfig b/drivers/platform/x86/Kconfig index 80b87954f6dd..f401ae463e9b 100644 --- a/drivers/platform/x86/Kconfig +++ b/drivers/platform/x86/Kconfig @@ -658,6 +658,19 @@ config WMI_BMOF 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 + default 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 MSI_WMI tristate "MSI WMI extras" depends on ACPI_WMI |