A-Team_Digital_Solutions/android_kernel_motorola_sm6375
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charging: charging state machine don't depend on battery soc

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charging state machine use battery voltage as condition to switch state
instead of battery soc.
1.Sometimes batt soc have some error in low temperature and less
then 100%, charging can't auto stop when battery FULL.
2.unit can't recharge after charge full.When unit charge full, it will get
the forced capacity 100%, so chrg_step can't be switch to STEP_NORM
from STEP_FULL.

refer to https://gerrit.mot.com/#/c/1926738/

Change-Id: I1f9a3926d1e39168b4df227e8172a43dc0af58bc
Signed-off-by: Guocheng Wang <wanggc6@motorola.com>
Reviewed-on: https://gerrit.mot.com/2730249
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Haijian Ma <mahj8@motorola.com>
Reviewed-by: Huosheng Liao <liaohs@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
Guocheng Wang 2023-09-05 10:47:49 +08:00
commit cdb9875ddc
1 changed files with 2 additions and 4 deletions
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6
drivers/power/mmi-smbcharger-iio/mmi-smbcharger-iio.c
View file

@ -3453,8 +3453,7 @@ static void mmi_basic_charge_sm(struct smb_mmi_charger *chip,
} else if (prm->pres_chrg_step == STEP_NORM) {
if (!zone->fcc_norm_ma)
prm->pres_chrg_step = STEP_FLOAT;
else if ((stat->batt_soc < 100) ||
(stat->batt_mv + HYST_STEP_MV) < max_fv_mv) {
else if ((stat->batt_mv + HYST_STEP_MV/2) < max_fv_mv) {
prm->chrg_taper_cnt = 0;
prm->pres_chrg_step = STEP_NORM;
} else if (mmi_has_current_tapered(BASE_BATT, chip, prm, stat->batt_ma,
@ -3462,8 +3461,7 @@ static void mmi_basic_charge_sm(struct smb_mmi_charger *chip,
prm->pres_chrg_step = STEP_FULL;
}
} else if (prm->pres_chrg_step == STEP_FULL) {
if ((stat->batt_soc <= 99) ||
stat->batt_mv < (max_fv_mv - HYST_STEP_MV * 2)) {
if (stat->batt_mv < (max_fv_mv - HYST_STEP_MV * 2)) {
prm->chrg_taper_cnt = 0;
prm->pres_chrg_step = STEP_NORM;
}