There's a new OTP change for the BD99955 and therefore the following
changes needed to be made.
- Change VFASTCHG_SET1 to 8.704V before CHG_EN is set to 1.
- Change VSYS_REG to 6.144V when starting Fast Charging.
- Change VSYS_REG back to 8.906V when Fast Charge is finished.
- Wait for 50ms to set CHG_EN to off (0) after Fast Charging has ended.
BUG=chrome-os-partner:55220
BUG=chrome-os-partner:55238
BRANCH=None
TEST=Flash kevin, plug discharged battery in. Plug AC in. `bd99955 r
0x11 1' and verify that VSYSREG is set to 0x1800 (6144mV).
TEST=`bd99955 r 0x1a 1' and verify that VFASTCHARGE is set to
0x2200 (8704mV).
TEST=Remove battery. `bd99955 r 0x11 1' and verify that VSYSREG is set
to 0x2300 (8960 mV).
TEST=Plug in battery and let charge to full. Verify that VSYSREG is set
to 0x2300 (8960 mV).
Change-Id: I5e5ca2cdcd4ead383416901c904df1e6fe5a9e28
Signed-off-by: Aseda Aboagye <aaboagye@google.com>
Reviewed-on: https://chromium-review.googlesource.com/360421
Commit-Ready: Aseda Aboagye <aaboagye@chromium.org>
Tested-by: Aseda Aboagye <aaboagye@chromium.org>
Reviewed-by: Mary Ruthven <mruthven@chromium.org>
b7a604728a