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e5ec074dfa
Fix max brightness for Ryu. The max brightness must be less than 0x80 because the top bit in the lightbar current registers is reserved. Writing the top bit seems to have undefined behavior. This fixes the hiccups in the tap for battery sequence which was ramping brightness to above 0x80 and producing weird results. BUG=chrome-os-partner:45835, chrome-os-partner:44029 BRANCH=smaug TEST=test tap for battery looks smooth. test that the google colors match the desired current levels: > lightbar ... 15 0f 06 16 0f 20 17 16 08 18 06 21 19 26 11 1a 1d 0b Change-Id: Iecf1c770f986064b9b4d2d3d54fab0ea1242af01 Signed-off-by: Alec Berg <alecaberg@chromium.org> Reviewed-on: https://chromium-review.googlesource.com/302146 Reviewed-by: Vincent Palatin <vpalatin@chromium.org> Commit-Queue: Vincent Palatin <vpalatin@chromium.org> (cherry picked from commit 133dab0c36160d0e54820cce9e97071df34340f8) Reviewed-on: https://chromium-review.googlesource.com/302446
For an overview of the Embedded Controller firmware, refer to http://www.chromium.org/chromium-os/2014-firmware-summit