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I2C bus SDA hold time can be marginal with 60ns value, especially when there is level shifter on the bus. So program it to 300ns based on Fast-mode specification, which is between 0 to 900ns. Apply the same timing for Standard-mode as well. Refer to original bug on BayTrail chrome-os-partner:28092, this is to carry forward the fix to Broadwell. BRANCH=chromeos-2013.04 BUG=chrome-os-partner:33378 TEST=suspend resume test, watch for I2C errors Change-Id: I93200b141602163903f5c9f52b94013bcf3382a5 Signed-off-by: Stefan Reinauer <reinauer@chromium.org> Original-Commit-Id: 72b82a1d5d836594e7d0f95972cc0dc91ae7ff8c Original-Change-Id: I995d6868a44f2578a6d0b18dd5e8548f3c3cd494 Original-Signed-off-by: Chiranjeevi Rapolu <chiranjeevi.rapolu@intel.com> Original-Reviewed-on: https://chromium-review.googlesource.com/226386 Original-Reviewed-by: Wenkai Du <wenkai.du@intel.com> Original-Reviewed-by: Duncan Laurie <dlaurie@chromium.org> Reviewed-on: http://review.coreboot.org/9467 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi <pgeorgi@google.com> |
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