diff options
| author | Alec Berg <alecaberg@chromium.org> | 2015-08-28 14:50:44 -0700 |
|---|---|---|
| committer | chrome-bot <chrome-bot@chromium.org> | 2015-08-28 19:43:42 -0700 |
| commit | 252dce9bd3d70b09e33aba17580ad11d1203ee73 (patch) | |
| tree | 46389b4e674e5f5be49e68fa77fa26feb03320a8 | |
| parent | 5943f49e17f4164188f0d0947b024e8b4271c00d (diff) | |
| download | chrome-ec-252dce9bd3d70b09e33aba17580ad11d1203ee73.tar.gz | |
glados: increase voltage hysteresis in fast charging
Increase voltage hysteresis in fast charging to 100mV to avoid
bouncing back and forth between low and high voltage profiles.
BUG=chrome-os-partner:44299
BRANCH=none
TEST=test on glados, charge up from below 8.2V to above 8.3V
with zinger and verify that we switch cleanly from the low
voltage profile to the high voltage profile.
Change-Id: Ia4c03b93da66c4913848ba8eec0e09988c4d71d8
Signed-off-by: Alec Berg <alecaberg@chromium.org>
Reviewed-on: https://chromium-review.googlesource.com/296024
Reviewed-by: Shawn N <shawnn@chromium.org>
| -rw-r--r-- | board/glados/battery.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/board/glados/battery.c b/board/glados/battery.c index 307f977c67..4c819dac48 100644 --- a/board/glados/battery.c +++ b/board/glados/battery.c @@ -116,13 +116,13 @@ int charger_profile_override(struct charge_state_data *curr) /* * If battery voltage reading is bad, use the last reading. Otherwise, - * determine voltage range with 20mV * hysteresis. + * determine voltage range with hysteresis. */ if (curr->batt.flags & BATT_FLAG_BAD_VOLTAGE) { batt_voltage = prev_batt_voltage; } else { batt_voltage = prev_batt_voltage = curr->batt.voltage; - if (batt_voltage < 8280) + if (batt_voltage < 8200) voltage_range = VOLTAGE_RANGE_LOW; else if (batt_voltage > 8300) voltage_range = VOLTAGE_RANGE_HIGH; |