the following patch was just integrated into master: commit 99e952d480ec9c1a874556f3b3681c6342c29f4b Author: Ben Zhang benzh@chromium.org Date: Fri Nov 21 11:17:53 2014 -0800
samus: Set MICBIAS1 to 2.970V
The default micbias1 voltage is 1.476V (1.8V * 0.82) which does not match what's specified on the schematic. This patch sets the voltage to 2.970V (3.3V * 0.90) according to the schematic.
BUG=chrome-os-partner:32953 BRANCH=samus TEST=Set MICBIAS to 2.970V on Samus and verified with a scope
Change-Id: I1ced834a5afe2de3fccf4bcff8ec9c8e5718f60a Signed-off-by: Stefan Reinauer reinauer@chromium.org Original-Commit-Id: 176f9272801a3de5ed6fc05ade06042e2a2c0a5c Original-Change-Id: Icdbc1b5f65fe28591d54544372bdc2dacb50e9c1 Original-Signed-off-by: Ben Zhang benzh@chromium.org Original-Signed-off-by: Duncan Laurie dlaurie@chromium.org Original-Reviewed-on: https://chromium-review.googlesource.com/241178 Reviewed-on: http://review.coreboot.org/9499 Tested-by: build bot (Jenkins) Reviewed-by: Patrick Georgi pgeorgi@google.com
See http://review.coreboot.org/9499 for details.
-gerrit