(Now in plain text. Sorry about that.) On Sat, Sep 9, 2017 at 10:09 AM, Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> wrote: > On Fri, Sep 08, 2017 at 10:23:11AM -0500, Mario Limonciello wrote: >> 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@xxxxxxxx> > > Reviewed-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx> FWIW, Reviewed-by: Yehezkel Bernat <yehezkel.bernat@xxxxxxxxx>
