the following patch was just integrated into master: commit a5e419c51187d24818f056327746a18676fe3a20 Author: Duncan Laurie dlaurie@chromium.org Date: Mon Sep 19 17:22:10 2016 -0700
drivers/i2c/tpm/cr50: Support interrupts for status
Support reading the ACPI GPE status (on x86) to determine when the cr50 is ready to return response data or is done processing written data. If the interrupt is not defined by Kconfig then it will continue to use the safe delay.
This was tested with reef hardware and a modified cr50 image that generates interrupts at the intended points.
BUG=chrome-os-partner:53336
Change-Id: I9f78f520fd089cb4471d8826a8cfecff67398bf8 Signed-off-by: Duncan Laurie dlaurie@chromium.org
See https://review.coreboot.org/16660 for details.
-gerrit