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eve: Reduce max battery charge voltage for 0.5% margin

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Limit battery charge voltage to prevent battery over-charge due to
regulation inaccuracy.

(ported from reef board)

BUG=b:36024657
BRANCH=none
TEST=build and boot on reef and ensure charging is still functional

Change-Id: I90dd8bda3d67a6c50aa39bbd096239565c73b7c5
Signed-off-by: Duncan Laurie <dlaurie@google.com>
Reviewed-on: https://chromium-review.googlesource.com/450950
Reviewed-by: Scott Collyer <scollyer@chromium.org>
This commit is contained in:
Duncan Laurie
2017-03-07 09:41:02 -08:00
committed by chrome-bot
parent fa1a7c49f7
commit 06fbe70e50
1 changed files with 2 additions and 2 deletions
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4
board/eve/battery.c
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@@ -47,7 +47,7 @@ static enum battery_type board_battery_type = BATTERY_TYPE_COUNT;
* limits are given by discharging_min/max_c.
*/
static const struct battery_info batt_info_lg = {
.voltage_max = 8800, /* mV */
.voltage_max = TARGET_WITH_MARGIN(8800, 5), /* mV */
.voltage_normal = 7700,
.voltage_min = 6100, /* Add 100mV for charger accuracy */
.precharge_current = 256, /* mA */
@@ -65,7 +65,7 @@ static const struct battery_info batt_info_lg = {
* limits are given by discharging_min/max_c.
*/
static const struct battery_info batt_info_lishen = {
.voltage_max = 8750, /* mV */
.voltage_max = TARGET_WITH_MARGIN(8750, 5), /* mV */
.voltage_normal = 7700,
.voltage_min = 6100, /* Add 100mV for charger accuracy */
.precharge_current = 88, /* mA */