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Add module parameter to enable panic on delta_vbat

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Add module parameter to enable panic on delta_vbat when the
paired battery delta_vbat exceeds threshold of paired battery
load off state.
The panic is enabled only for engineering devices, and disabled
by default.

Change-Id: I0afe222c59e155af507e53e7ede6ede31ddf367a
Signed-off-by: yanyh2 <yanyh2@motorola.com>
Reviewed-on: https://gerrit.mot.com/2196448
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Jianqi Yang <yangj@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
yanyh2 2022-02-22 15:59:31 +08:00 • committed by Yonghua Yan
commit b4020e9c78
1 changed files with 16 additions and 1 deletions
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17
drivers/power/sgm4154x_charger_lite/sgm4154x_charger_lite.c
View file

@ -21,6 +21,12 @@
#include <linux/of_gpio.h>
#include "sgm4154x_charger_lite.h"
static bool paired_vbat_panic_enabled = false;
module_param(paired_vbat_panic_enabled, bool, 0644);
MODULE_PARM_DESC(paired_vbat_panic_enabled,
"Enable panic on abnormal paired vbat delta");
static struct power_supply_desc sgm4154x_power_supply_desc;
#ifdef SGM_BASE
static struct reg_default sgm4154x_reg_defs[] = {
@ -213,6 +219,7 @@ static int sgm4154x_set_ichrg_curr(struct sgm4154x_device *sgm, int chrg_curr)
else if ( chrg_curr > sgm->init_data.max_ichg)
chrg_curr = sgm->init_data.max_ichg;
pr_info("set ichg = %duA\n", chrg_curr);
reg_val = chrg_curr / SGM4154x_ICHRG_CURRENT_STEP_uA;
ret = regmap_update_bits(sgm->regmap, SGM4154x_CHRG_CTRL_2,
@ -2262,7 +2269,14 @@ static void sgm4154x_paired_battery_notify(void *data,
break;
}
}
WARN_ON(paired_load == PAIRED_LOAD_OFF);
if (paired_load == PAIRED_LOAD_OFF) {
if (paired_vbat_panic_enabled)
panic("ERROR: delta_vbat=%dmV, delta_soc=%d",
delta_vbat, delta_soc);
else
pr_err("ERROR: delta_vbat=%dmV, delta_soc=%d",
delta_vbat, delta_soc);
}
}
if (initialized && paired_ichg > 0) {
@ -2339,6 +2353,7 @@ static int sgm4154x_mmi_charger_init(struct sgm_mmi_charger *chg)
df_sn = "unknown-sn";
}
strcpy(chg->batt_info.batt_sn, df_sn);
chg->chg_cfg.target_fcc = chg->sgm->init_data.ichg / 1000;
chg->chg_cfg.charging_disable = chg->sgm->init_data.charger_disabled;
if (of_property_read_bool(chg->sgm->dev->of_node, "mmi,ichg-invert-polority"))