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Support the input charge current limit for wireless charger

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sgm4154x:
Support the input charge current limit setting for wireless charger.

Change-Id: Iaaadbf4936099c7614471d72d288c26969862095
Reviewed-on: https://gerrit.mot.com/2557864
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Wentao Xu <xuwt2@motorola.com>
Reviewed-by: Guobin Zhang <zhanggb@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
litong20 2023-03-29 10:01:07 +08:00 • committed by litong
commit c1f9c09b52
2 changed files with 20 additions and 2 deletions
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21
drivers/power/sgm4154x_charger_lite/sgm4154x_charger_lite.c
View file

@ -29,6 +29,10 @@
#define DEF_PROTECT_DURATION_MS (60000)
#define DEF_USB_CURRENT_MA (500000)
#ifndef MIN_VAL
#define MIN_VAL( x, y ) ( ((x) < (y)) ? (x) : (y) )
#endif
static bool paired_vbat_panic_enabled = false;
module_param(paired_vbat_panic_enabled, bool, 0644);
MODULE_PARM_DESC(paired_vbat_panic_enabled,
@ -1942,6 +1946,14 @@ static int sgm4154x_parse_dt(struct sgm4154x_device *sgm)
pr_info("wireless input current limit: %duA\n", sgm->init_data.wls_ilim);
ret = device_property_read_u32(sgm->dev,
"wls-ichg-limit-microamp",
&sgm->init_data.wls_ichg_ilim);
if (ret)
sgm->init_data.wls_ichg_ilim = SGM4154x_ICHRG_I_MIN_uA;
pr_info("wireless ichg current limit: %duA\n", sgm->init_data.wls_ichg_ilim);
irq_gpio = of_get_named_gpio(sgm->dev->of_node, "sgm,irq-gpio", 0);
if (!gpio_is_valid(irq_gpio))
{
@ -2420,6 +2432,7 @@ static int sgm4154x_charger_config_charge(void *data, struct mmi_charger_cfg *co
static int prev_paired_load = PAIRED_LOAD_OFF;
int curr_in_limit = chg->sgm->ilim;
int volt_in_limit = chg->sgm->init_data.vlim;
int ichg_in_limit = chg->sgm->init_data.ichg;
/* Monitor vbat and ibat for OVP and OCP */
if (chg->batt_info.batt_mv >= chg->sgm->vbat_ovp_threshold) {
@ -2579,10 +2592,14 @@ static int sgm4154x_charger_config_charge(void *data, struct mmi_charger_cfg *co
if (curr_in_limit > chg->sgm->init_data.ilim)
curr_in_limit = chg->sgm->init_data.ilim;
} else if (chg->chg_info.chrg_present && chg->chg_info.chrg_type == SGM4154x_WLS_TYPE) {
ichg_in_limit = MIN_VAL(chg->sgm->init_data.wls_ichg_ilim, chg->chg_cfg.target_fcc * 1000);
if (chg->sgm->ichg != ichg_in_limit) {
rc = sgm4154x_set_ichrg_curr(chg->sgm, ichg_in_limit);
}
curr_in_limit = chg->sgm->init_data.wls_ilim;
volt_in_limit = chg->sgm->init_data.wls_vlim;
pr_debug("wireless is on, curr_in_limit=%d, volt_in_limit=%d\n",
curr_in_limit, volt_in_limit);
pr_debug("wireless is on, curr_in_limit=%d, volt_in_limit=%d, ichg_in_limit=%d\n",
curr_in_limit, volt_in_limit, ichg_in_limit);
} else {
curr_in_limit = 0;
}

1
drivers/power/sgm4154x_charger_lite/sgm4154x_charger_lite.h
View file

@ -224,6 +224,7 @@ struct sgm4154x_init_data {
u32 ichg; /* charge current */
u32 ilim; /* input current */
u32 wls_ilim; /* wireless input current */
u32 wls_ichg_ilim; /* wireless charge current(FCC) */
u32 vreg; /* regulation voltage */
u32 iterm; /* termination current */
u32 iprechg; /* precharge current */