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Improve the PD charging performance in high temperature

Browse source 
-1, define a last chrg step flag.
-2, Disable charger pump IC at PM_STATE_ENTRY.
-3, Add second search cycle in mmi_find_chrg_step
-4, clear the batt_curr_roof and pd_constant_power_cnt
when switch the state machine work

Change-Id: I1156b8168c387ae2edf88052e9251302ef899ae1
Signed-off-by: xuwt2 <xuwt2@lenovo.com>
Reviewed-on: https://gerrit.mot.com/1429346
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Jianqi Yang <yangj@motorola.com>
Submit-Approved: Jira Key
Reviewed-on: https://gerrit.mot.com/1893575
Reviewed-by: Xiangpo Zhao <zhaoxp3@motorola.com>
Reviewed-by: Wei Xu <xuwei9@lenovo.com>
This commit is contained in:
xuwt2 2019-09-27 20:07:21 +08:00 • committed by Wei Xu
commit b7e7cdd449
3 changed files with 84 additions and 14 deletions
Download patch file Download diff file Expand all files Collapse all files

78
drivers/power/mmi_parallel_charger/mmi_charger_core.c
View file

@ -165,12 +165,16 @@ bool mmi_find_chrg_step(struct mmi_charger_manager *chip, int temp_zone, int vba
batt_volt = vbatt_volt;
chrg_step_inline.temp_c = zone.temp_c;
mmi_chrg_info(chip, "batt_volt %d, step num %d\n",
batt_volt, chip->chrg_step_nums);
mmi_chrg_info(chip, "batt_volt %d, chrg step %d, step nums %d\n",
batt_volt, prev_step.pres_chrg_step,
chip->chrg_step_nums);
/*In the first search cycle, find out the vbatt is less than step volt*/
for (i = 0; i < chip->chrg_step_nums; i++) {
mmi_chrg_info(chip, "i %d, step volt %d, batt_volt %d\n",
i, chrg_steps[i].chrg_step_volt, batt_volt);
mmi_chrg_info(chip,
"first cycle,i %d, step volt %d, batt_volt %d\n",
i, chrg_steps[i].chrg_step_volt, batt_volt);
if (chrg_steps[i].chrg_step_volt > 0
&& batt_volt < chrg_steps[i].chrg_step_volt) {
if ( (i + 1) < chip->chrg_step_nums
@ -186,6 +190,7 @@ bool mmi_find_chrg_step(struct mmi_charger_manager *chip, int temp_zone, int vba
chrg_steps[i].chrg_step_volt;
chrg_step_inline.pres_chrg_step = i;
find_step = true;
mmi_chrg_info(chip, "find chrg step\n");
break;
}
}
@ -199,19 +204,70 @@ bool mmi_find_chrg_step(struct mmi_charger_manager *chip, int temp_zone, int vba
chrg_step_inline.chrg_step_cv_volt,
chrg_step_inline.chrg_step_cv_tapper_curr);
chip->chrg_step = chrg_step_inline;
} else {
/*If can't find out any chrg step in the first search cycle,*/
/*it means that vbatt is already greater than all chrg step volt, */
/*therefore, start to enter second search cycle, */
/*to find out the maximal chrg step volt*/
for (i = 0; i < chip->chrg_step_nums; i++) {
mmi_chrg_info(chip,
"second cycle, i %d, step volt %d, batt_volt %d\n",
i, chrg_steps[i].chrg_step_volt, batt_volt);
if (chrg_steps[i].chrg_step_volt > 0
&& batt_volt > chrg_steps[i].chrg_step_volt) {
if ( (i + 1) < chip->chrg_step_nums
&& chrg_steps[i + 1].chrg_step_volt > 0) {
chrg_step_inline.chrg_step_cv_tapper_curr =
chrg_steps[i + 1].chrg_step_curr;
} else
chrg_step_inline.chrg_step_cv_tapper_curr =
chrg_steps[i].chrg_step_curr;
chrg_step_inline.chrg_step_cc_curr =
chrg_steps[i].chrg_step_curr;
chrg_step_inline.chrg_step_cv_volt =
chrg_steps[i].chrg_step_volt;
chrg_step_inline.pres_chrg_step = i;
find_step = true;
mmi_chrg_info(chip, "find chrg step\n");
}
}
if (find_step) {
mmi_chrg_info(chip, "chrg step %d, "
"step cc curr %d, step cv volt %d, "
"step cv tapper curr %d\n",
chrg_step_inline.pres_chrg_step,
chrg_step_inline.chrg_step_cc_curr,
chrg_step_inline.chrg_step_cv_volt,
chrg_step_inline.chrg_step_cv_tapper_curr);
chip->chrg_step = chrg_step_inline;
}
}
if (find_step &&
prev_step.pres_chrg_step != chip->chrg_step.pres_chrg_step) {
mmi_chrg_info(chip,"temp zone %d, "
"Select chrg step %d, step cc curr %d,"
"step cv volt %d, step cv tapper curr %d\n",
if (find_step) {
if (chip->chrg_step.chrg_step_cc_curr ==
chip->chrg_step.chrg_step_cv_tapper_curr)
chip->chrg_step.last_step = true;
else
chip->chrg_step.last_step = false;
mmi_chrg_info(chip,"Temp zone %d, "
"select chrg step %d, step cc curr %d,"
"step cv volt %d, step cv tapper curr %d, "
"is the last chrg step %d\n",
chip->pres_temp_zone,
chip->chrg_step.pres_chrg_step,
chip->chrg_step.chrg_step_cc_curr,
chip->chrg_step.chrg_step_cv_volt,
chip->chrg_step.chrg_step_cv_tapper_curr);
return true;
chip->chrg_step.chrg_step_cv_tapper_curr,
chip->chrg_step.last_step);
if (prev_step.pres_chrg_step != chip->chrg_step.pres_chrg_step) {
mmi_chrg_info(chip, "Find the next chrg step\n");
return true;
}
}
return false;
}

1
drivers/power/mmi_parallel_charger/mmi_charger_core.h
View file

@ -111,6 +111,7 @@ struct mmi_chrg_step_info {
int chrg_step_cc_curr;
int chrg_step_cv_volt;
int chrg_step_cv_tapper_curr;
bool last_step;
};
struct mmi_chrg_dev_ops {

19
drivers/power/mmi_parallel_charger/mmi_charger_pump_policy.c
View file

@ -126,6 +126,8 @@ static void mmi_chrg_sm_move_state(struct mmi_charger_manager *chip, pm_sm_state
mmi_chrg_dbg(chip, PR_INTERRUPT, "pm_state change:%s -> %s\n",
pm_state_str[sm_state], pm_state_str[state]);
sm_state = state;
pd_constant_power_cnt = 0;
batt_curr_roof = 0;
}
static void chrg_dev_init(struct mmi_charger_manager *chip, struct mmi_cp_policy_dev *chrg_list)
@ -474,6 +476,16 @@ static void mmi_chrg_sm_work_func(struct work_struct *work)
heartbeat_dely_ms = HEARTBEAT_CANCEL;
break;
case PM_STATE_ENTRY:
if (chrg_list->cp_slave
&& chrg_list->chrg_dev[CP_SLAVE]->charger_enabled) {
mmi_enable_charging(chrg_list->chrg_dev[CP_SLAVE], false);
}
if (chrg_list->cp_master
&& chrg_list->chrg_dev[CP_MASTER]->charger_enabled) {
mmi_enable_charging(chrg_list->chrg_dev[CP_MASTER], false);
}
if (chip->pd_pps_support
&& chrg_list->cp_master
&& vbatt_volt > chip->pl_chrg_vbatt_min
@ -969,8 +981,9 @@ static void mmi_chrg_sm_work_func(struct work_struct *work)
}
if (vbatt_volt >= chrg_step->chrg_step_cv_volt
&& (ibatt_curr < chrg_step->chrg_step_cv_tapper_curr
|| ibatt_curr < chrg_list->chrg_dev[CP_MASTER]->charging_curr_min)) {
&& ((!chrg_step->last_step &&
ibatt_curr < chrg_step->chrg_step_cv_tapper_curr)
|| ibatt_curr < chrg_list->chrg_dev[CP_MASTER]->charging_curr_min)) {
if (chrg_cv_taper_tunning_cnt >= CV_TAPPER_COUNT) {
if (ibatt_curr <
chrg_list->chrg_dev[CP_MASTER]->charging_curr_min) {
@ -1265,7 +1278,7 @@ schedule:
"battery temp %d\n",
chip->pd_request_curr, batt_temp);
} else if (ibatt_curr < TYPEC_HIGH_CURRENT_UA
} else if (ibatt_curr > TYPEC_HIGH_CURRENT_UA
&& chip->pd_request_volt > cooling_volt) {
chip->pd_request_volt -= COOLING_DELTA_POWER;
mmi_chrg_info(chip, "Do chrg power cooling"