tree 4f94e685564b470d72ad03964c9eb7fcd5eb8083
parent 56d831392566713ba416b822cf2416a6d78a51ae
author Kane Chen <kane.chen@intel.com> 1670822103 +0800
committer Eric Lai <eric_lai@quanta.corp-partner.google.com> 1674107913 +0000

drivers/usb/acpi: Add USB _DSM method to enable/disable USB LPM per port

This patch supports projects to use _DSM to control USB3 U1/U2
transition per port.

More details can be found in
https://web.archive.org/web/20230116084819/https://learn.microsoft.com/en-us/windows-hardware/drivers/bringup/usb-device-specific-method---dsm-

The ACPI and USB driver of linux kernel need corresponding functions
to support this feature. Please see
https://git.kernel.org/pub/scm/linux/kernel/git/mnyman/xhci.git/log/?h=port_check_acpi_dsm

BUG=b:253402457
TEST=tested on felwinter and found _DSM method is created.

Change-Id: Iffb2498e26352a3f120c097c50587324e311e8ba
Signed-off-by: Kane Chen <kane.chen@intel.com>
Reviewed-on: https://review.coreboot.org/c/coreboot/+/71924
Reviewed-by: Kapil Porwal <kapilporwal@google.com>
Tested-by: build bot (Jenkins) <no-reply@coreboot.org>
Reviewed-by: Eric Lai <eric_lai@quanta.corp-partner.google.com>