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qpnp-smbcharger-mmi: Charger Temp change adjust

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Add fast heartbeat adj to state changes in addition to initial
charge det. This will prevent prolonged over current when temp
zones change.

NO_PROP_NEEDED: Applies to Smith and Olson dual batt only.

Change-Id: Icb94a3da1ac4f70abf1f06d6d90ede7eea36da85
Signed-off-by: Bernie Moreno-BERNIEM <berniem@motorola.com>
Reviewed-on: https://gerrit.mot.com/1725464
SLTApproved: Slta Waiver
SME-Granted: SME Approvals Granted
Tested-by: Jira Key
Reviewed-by: Ling Jin <lingjin@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
Bernie Moreno-BERNIEM 2020-08-17 16:15:30 -05:00 • committed by Bernie Moreno
commit 41e9ea798b
1 changed files with 40 additions and 11 deletions
Download patch file Download diff file Expand all files Collapse all files

51
drivers/power/qpnp-smbcharger-mmi/qpnp-smbcharger-mmi.c Normal file → Executable file
View file

@ -177,8 +177,8 @@ enum {
#define HEARTBEAT_DELAY_MS 5000
#define HEARTBEAT_DUAL_DELAY_MS 10000
#define HEARTBEAT_DUAL_DELAY_OCP_MS 750
#define MAX_ALLOWED_OCP 10
#define HEARTBEAT_DUAL_DELAY_OCP_MS 1000
#define HEARTBEAT_OCP_SETTLE_CNT 7
#define HEARTBEAT_FACTORY_MS 1000
#define HEARTBEAT_DISCHARGE_MS 60000
@ -397,6 +397,8 @@ struct smb_mmi_charger {
int hvdcp_power_max;
int inc_hvdcp_cnt;
int hb_startup_cnt;
bool ocp_flag;
};
#define CHGR_FAST_CHARGE_CURRENT_CFG_REG (CHGR_BASE + 0x61)
@ -2481,6 +2483,8 @@ static int mmi_dual_charge_sm(struct smb_mmi_charger *chg,
stepchg_str[(int)chip->pres_chrg_step],
chip->pres_temp_zone,
chip->batt_health);
chg->hb_startup_cnt = HEARTBEAT_OCP_SETTLE_CNT;
chg->ocp_flag = true; // 1x settle per state chng
return 1;
} else {
mmi_dbg(chg, "Batt %d: batt_mv = %d, batt_ma %d, batt_soc %d,"
@ -2511,6 +2515,7 @@ static int mmi_dual_charge_control(struct smb_mmi_charger *chg,
int target_fv;
int effective_fv;
int effective_fcc;
int scaled_fcc =0;
int ocp;
int sm_update;
bool voltage_full;
@ -2598,9 +2603,21 @@ static int mmi_dual_charge_control(struct smb_mmi_charger *chg,
effective_fv = get_effective_result(chg->fv_votable) / 1000;
effective_fcc = get_effective_result(chg->fcc_votable);
if (effective_fcc >= (main_p->target_fcc + flip_p->target_fcc) *1000 ) { // Safety check
/* OCP Check - Scale down fcc if too high for initial set */
if (chg->hb_startup_cnt > 1) {
chg->hb_startup_cnt--;
sched_time = HEARTBEAT_DUAL_DELAY_OCP_MS;
effective_fcc = effective_fcc *7/10; // Scale down fcc if too high for init set
} else if ( (effective_fcc >= (main_p->target_fcc + flip_p->target_fcc) *1000) &&
(chg->ocp_flag) ) {
chg->ocp_flag = false;
sched_time = HEARTBEAT_DUAL_DELAY_OCP_MS;
chg->hb_startup_cnt = HEARTBEAT_OCP_SETTLE_CNT;
scaled_fcc = effective_fcc /10;
effective_fcc -= scaled_fcc;
mmi_dbg(chg, "fccScaled: %d, AdjFCC: %d\n", scaled_fcc, effective_fcc);
main_p->ocp[main_p->pres_temp_zone] =0;
flip_p->ocp[flip_p->pres_temp_zone] =0;
}
/* Check for Charge None */
@ -2673,6 +2690,7 @@ static int mmi_dual_charge_control(struct smb_mmi_charger *chg,
target_fcc = flip_p->target_fcc;
target_fv = flip_p->target_fv;
mmi_info(chg, "Align Flip to Main FULL\n");
sched_time = HEARTBEAT_DUAL_DELAY_MS;
goto vote_now;
} else if ((flip_p->pres_chrg_step == STEP_FULL) &&
((main_p->pres_chrg_step == STEP_MAX) ||
@ -2685,6 +2703,7 @@ static int mmi_dual_charge_control(struct smb_mmi_charger *chg,
target_fcc = main_p->target_fcc;
target_fv = main_p->target_fv;
mmi_info(chg, "Align Main to Flip FULL\n");
sched_time = HEARTBEAT_DUAL_DELAY_MS;
goto vote_now;
/* Check for Charge Disable from each */
} else if ((main_p->target_fcc < 0) ||
@ -2702,15 +2721,16 @@ static int mmi_dual_charge_control(struct smb_mmi_charger *chg,
else
target_fv = flip_p->target_fv;
if (chg_stat_main.batt_ma > main_p->target_fcc) {
if ((chg_stat_main.batt_ma > main_p->target_fcc) &&
chg->hb_startup_cnt %2) { //Allow settle time
sched_time = HEARTBEAT_DUAL_DELAY_OCP_MS;
ocp = chg_stat_main.batt_ma - main_p->target_fcc;
main_p->ocp[main_p->pres_temp_zone] += ocp;
mmi_info(chg, "Main Exceed by %d mA\n",
main_p->ocp[main_p->pres_temp_zone]);
}
if (chg_stat_flip.batt_ma > flip_p->target_fcc) {
if ((chg_stat_flip.batt_ma > flip_p->target_fcc) &&
chg->hb_startup_cnt %2) { //Allow settle time
sched_time = HEARTBEAT_DUAL_DELAY_OCP_MS;
ocp = chg_stat_flip.batt_ma - flip_p->target_fcc;
flip_p->ocp[flip_p->pres_temp_zone] += ocp;
@ -2719,12 +2739,19 @@ static int mmi_dual_charge_control(struct smb_mmi_charger *chg,
}
target_fcc = main_p->target_fcc + flip_p->target_fcc;
target_fcc -= scaled_fcc/1000;
target_fcc -= main_p->ocp[main_p->pres_temp_zone];
target_fcc -= flip_p->ocp[flip_p->pres_temp_zone];
if ( (target_fcc < main_p->target_fcc) &&
(chg_stat_flip.batt_ma < flip_p->target_fcc) ) {
(chg_stat_flip.batt_ma < flip_p->target_fcc *7/10) ) {
mmi_info(chg, "Target FCC adjust too much\n");
//target_fcc = main_p->target_fcc; // temp hack for cold chrg test
chg->hb_startup_cnt = HEARTBEAT_OCP_SETTLE_CNT;
if (main_p->target_fcc < flip_p->target_fcc)
target_fcc = (main_p->target_fcc)*5/2;
else
target_fcc = (flip_p->target_fcc)*5/2;
main_p->ocp[main_p->pres_temp_zone] =0;
flip_p->ocp[flip_p->pres_temp_zone] =0;
}
if (((main_p->pres_chrg_step == STEP_MAX) ||
@ -2768,13 +2795,13 @@ vote_now:
mmi_info(chg, "IMPOSED: FV = %d, CDIS = %d, FCC = %d, USBICL = %d\n",
effective_fv,
get_effective_result(chg->chg_dis_votable),
effective_fcc,
target_fcc,
get_effective_result(chg->usb_icl_votable));
else
mmi_dbg(chg, "IMPOSED: FV = %d, CDIS = %d, FCC = %d, USBICL = %d\n",
effective_fv,
get_effective_result(chg->chg_dis_votable),
effective_fcc,
target_fcc,
get_effective_result(chg->usb_icl_votable));
return sched_time;
@ -4179,6 +4206,8 @@ static int smb_mmi_probe(struct platform_device *pdev)
chip->awake = false;
this_chip = chip;
device_init_wakeup(chip->dev, true);
chip->hb_startup_cnt = HEARTBEAT_OCP_SETTLE_CNT;
chip->ocp_flag = true;
smb_mmi_chg_config_init(chip);