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Change subject: soc/intel/alderlake: Add ACPI addition for USB4/TBT latency optimization ......................................................................
soc/intel/alderlake: Add ACPI addition for USB4/TBT latency optimization
The PCI-SIG engineering change requirement provides the ACPI additions for firmware latency optimization. This change adds additional ACPI DSM function with both of FW_RESET_TIME and FW_D3HOT_TO_D0_TIME to the USB4/TBT topology which has the same implementation on Tiger Lake in commit I5a19118b75ed0a78b7436f2f90295c03928300d7.
BUG=b:199757442 TEST= It was validated that the first connected device waits only 50ms instead of 100ms and all functions work on Alder Lake platform boards.
Signed-off-by: John Zhao john.zhao@intel.com Change-Id: I0c8977c96de27ab0e554469eba658660975b8493 --- M src/soc/intel/alderlake/acpi/tcss_pcierp.asl 1 file changed, 59 insertions(+), 0 deletions(-)
git pull ssh://review.coreboot.org:29418/coreboot refs/changes/98/58098/2