diff options
Diffstat (limited to 'board/kodama/battery.c')
| -rw-r--r-- | board/kodama/battery.c | 30 |
1 files changed, 27 insertions, 3 deletions
diff --git a/board/kodama/battery.c b/board/kodama/battery.c index 21e5672879..e64e0c167a 100644 --- a/board/kodama/battery.c +++ b/board/kodama/battery.c @@ -83,10 +83,37 @@ enum battery_present battery_hw_present(void) int charger_profile_override(struct charge_state_data *curr) { + const struct battery_info *batt_info = battery_get_info(); + static int normal_charge_lock, over_discharge_lock; /* battery temp in 0.1 deg C */ int bat_temp_c = curr->batt.temperature - 2731; /* + * SMP battery uses HW pre-charge circuit and pre-charge current is + * limited to ~50mA. Once the charge current is lower than IEOC level + * within CHG_TEDG_EOC, and TE is enabled, the charging power path will + * be turned off. Disable EOC and TE when battery stays over discharge + * state, otherwise enable EOC and TE. + */ + if (curr->batt.voltage < batt_info->voltage_min) { + normal_charge_lock = 0; + + if (!over_discharge_lock && curr->state == ST_CHARGE) { + over_discharge_lock = 1; + rt946x_enable_charge_eoc(0); + rt946x_enable_charge_termination(0); + } + } else { + over_discharge_lock = 0; + + if (!normal_charge_lock) { + normal_charge_lock = 1; + rt946x_enable_charge_eoc(1); + rt946x_enable_charge_termination(1); + } + } + + /* * When smart battery temperature is more than 45 deg C, the max * charging voltage is 4100mV. */ @@ -107,9 +134,6 @@ int charger_profile_override(struct charge_state_data *curr) if (!curr->batt.is_present && curr->requested_voltage == 0 && curr->requested_current == 0) { - const struct battery_info *batt_info = - battery_get_info(); - /* * b/138978212: With adapter plugged in S0, the system * will set charging current and voltage as 0V/0A once |