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charger: add mux control for WLS in otg mode for BQ2589x

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In OTG mode, the output of VOUT from WLS should be disabled.
So we use gpio to control WLS through mux. When VBUS boost starts, disabling
WLS VOUT. And resuming it after VBUS boost stops.
This change is for BQ2589x.

Change-Id: Id6a0d81a9e50ba63c1dd89cce3cd1523d2a21af9
Reviewed-on: https://gerrit.mot.com/2239292
SME-Granted: SME Approvals Granted
SLTApproved: Slta Waiver
Tested-by: Jira Key
Reviewed-by: Huosheng Liao <liaohs@motorola.com>
Submit-Approved: Jira Key
This commit is contained in:
weiweij 2022-04-12 10:49:11 +08:00 • committed by Wei Wei
commit a87f8d360d
1 changed files with 35 additions and 1 deletions
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36
drivers/power/bq2589x_chg_mmi/bq2589x_charger.c
View file

@ -147,6 +147,7 @@ struct bq2589x {
int vbat_volt;
int rsoc;
int chg_en_gpio;
int wls_en_gpio;
const char *chg_dev_name;
@ -590,6 +591,11 @@ void bq2589x_set_otg(struct bq2589x *bq, int enable)
int ret;
if (enable) {
/*disable wls output*/
if (gpio_is_valid(bq->wls_en_gpio)) {
gpio_direction_output(bq->wls_en_gpio, 1);
}
ret = bq2589x_enable_otg(bq);
if (ret < 0) {
dev_err(bq->dev, "%s:Failed to enable otg-%d\n", __func__, ret);
@ -599,6 +605,11 @@ void bq2589x_set_otg(struct bq2589x *bq, int enable)
ret = bq2589x_disable_otg(bq);
if (ret < 0)
dev_err(bq->dev, "%s:Failed to disable otg-%d\n", __func__, ret);
/*resume wls output*/
if (gpio_is_valid(bq->wls_en_gpio)) {
gpio_direction_output(bq->wls_en_gpio, 0);
}
}
}
@ -1400,6 +1411,17 @@ static int bq2589x_parse_dt(struct device *dev, struct bq2589x *bq)
gpio_direction_output(bq->chg_en_gpio,0);//default enable charge
}
/*wls outout en control*/
bq->wls_en_gpio = of_get_named_gpio(bq->dev->of_node, "mmi,wls-en-gpio", 0);
if (gpio_is_valid(bq->wls_en_gpio))
{
ret = gpio_request(bq->wls_en_gpio, "mmi wls en pin");
if (ret)
dev_err(bq->dev, "%s: %d gpio(wls en) request failed\n", __func__, bq->wls_en_gpio);
else
gpio_direction_output(bq->wls_en_gpio, 0);//default enable wls charge
}
ret = of_property_read_u32(np, "ti,bq2589x,vbus-volt-high-level", &pe.high_volt_level);
if (ret)
return ret;
@ -2650,20 +2672,32 @@ static int bq2589x_set_otg_enable(struct charger_device *chg_dev, bool enable)
int ret = 0;
if (enable) {
/*disable wls output*/
if (gpio_is_valid(bq->wls_en_gpio)) {
gpio_direction_output(bq->wls_en_gpio, 1);
}
if (bq->part_no == SC89890H) {
ret = bq2589x_disable_charger(bq);
}
val = BQ2589X_OTG_ENABLE << BQ2589X_OTG_CONFIG_SHIFT;
ret = bq2589x_update_bits(bq, BQ2589X_REG_03, BQ2589X_OTG_CONFIG_MASK, val);
}
else {
val = BQ2589X_OTG_DISABLE << BQ2589X_OTG_CONFIG_SHIFT;
if (bq->part_no == SC89890H) {
ret = bq2589x_enable_charger(bq);
}
ret = bq2589x_update_bits(bq, BQ2589X_REG_03, BQ2589X_OTG_CONFIG_MASK, val);
/*resume wls output*/
if (gpio_is_valid(bq->wls_en_gpio)) {
gpio_direction_output(bq->wls_en_gpio, 0);
}
}
dev_info(bq->dev, "%s: %s otg\n", __func__, enable ? "enable" : "disable");
return bq2589x_update_bits(bq, BQ2589X_REG_03, BQ2589X_OTG_CONFIG_MASK, val);
return ret;
}
static int bq2589x_set_boost_current_limit(struct charger_device *chg_dev, u32 uA)