diff options
| author | Mario Limonciello <[email protected]> | 2017-09-08 10:23:11 -0500 |
|---|---|---|
| committer | Andy Shevchenko <[email protected]> | 2017-09-20 16:07:22 +0300 |
| commit | ce6a90027c10f970f872de5db0294f9e3e969f1c (patch) | |
| tree | 8f370602c3ae125a6bc68dc3489f395982937069 /tools/perf/scripts/python/bin/stackcollapse-record | |
| 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 <[email protected]>
Reviewed-by: Mika Westerberg <[email protected]>
Reviewed-by: Yehezkel Bernat <[email protected]>
Signed-off-by: Darren Hart (VMware) <[email protected]>
[andy fixed merge conflicts and bump kernel version for ABI]
Signed-off-by: Andy Shevchenko <[email protected]>
Diffstat (limited to 'tools/perf/scripts/python/bin/stackcollapse-record')
0 files changed, 0 insertions, 0 deletions