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When this boolean property is present, the driver registers the power supply as POWER_SUPPLY_TYPE_MAINS instead of BATTERY. This prevents userspace from triggering battery power-saving sequences when using powered by 12V adapters. Signed-off-by: Rakesh Kota --- drivers/power/supply/qcom_battmgr.c | 47 ++++++++++++++++++++++++++++++++++++- 1 file changed, 46 insertions(+), 1 deletion(-) diff --git a/drivers/power/supply/qcom_battmgr.c b/drivers/power/supply/qcom_battmgr.c index 490137a23d00e97a9e6ced21d1e66fe637db6c9d..35d266375d8c46b161a64f9c2a8c6054dc2211de 100644 --- a/drivers/power/supply/qcom_battmgr.c +++ b/drivers/power/supply/qcom_battmgr.c @@ -332,6 +332,7 @@ struct qcom_battmgr { struct qcom_battmgr_wireless wireless; struct work_struct enable_work; + bool batteryless; /* * @lock is used to prevent concurrent power supply requests to the @@ -930,6 +931,47 @@ static const struct power_supply_desc sm8550_bat_psy_desc = { .property_is_writeable = qcom_battmgr_bat_is_writeable, }; +static int qcom_battmgr_dcin_get_property(struct power_supply *psy, + enum power_supply_property psp, + union power_supply_propval *val) +{ + struct qcom_battmgr *battmgr = power_supply_get_drvdata(psy); + int ret; + + if (!battmgr->service_up) + return -EAGAIN; + + ret = qcom_battmgr_bat_sm8350_update(battmgr, psp); + if (ret < 0) + return ret; + + switch (psp) { + case POWER_SUPPLY_PROP_STATUS: + val->intval = battmgr->status.status; + break; + case POWER_SUPPLY_PROP_PRESENT: + val->intval = battmgr->info.present; + break; + default: + return -EINVAL; + } + + return 0; +} + +static const enum power_supply_property dcin_props[] = { + POWER_SUPPLY_PROP_STATUS, + POWER_SUPPLY_PROP_PRESENT, +}; + +static const struct power_supply_desc dcin_psy_desc = { + .name = "qcom-battmgr-dcin", + .type = POWER_SUPPLY_TYPE_MAINS, + .properties = dcin_props, + .num_properties = ARRAY_SIZE(dcin_props), + .get_property = qcom_battmgr_dcin_get_property, +}; + static int qcom_battmgr_ac_get_property(struct power_supply *psy, enum power_supply_property psp, union power_supply_propval *val) @@ -1652,6 +1694,7 @@ static int qcom_battmgr_probe(struct auxiliary_device *adev, mutex_init(&battmgr->lock); init_completion(&battmgr->ack); + battmgr->batteryless = device_property_read_bool(dev, "qcom,batteryless"); match = of_match_device(qcom_battmgr_of_variants, dev->parent); if (match) battmgr->variant = (unsigned long)match->data; @@ -1690,7 +1733,9 @@ static int qcom_battmgr_probe(struct auxiliary_device *adev, return dev_err_probe(dev, PTR_ERR(battmgr->wls_psy), "failed to register wireless charing power supply\n"); } else { - if (battmgr->variant == QCOM_BATTMGR_SM8550) + if (battmgr->batteryless) + psy_desc = &dcin_psy_desc; + else if (battmgr->variant == QCOM_BATTMGR_SM8550) psy_desc = &sm8550_bat_psy_desc; else psy_desc = &sm8350_bat_psy_desc; -- 2.34.1