@@ -348,6 +348,32 @@ static bool is_polling_required(struct charger_manager *cm)
return false;
}
+static int try_charger_enable_by_psy(struct charger_manager *cm, bool enable)
+{
+ struct charger_desc *desc = cm->desc;
+ union power_supply_propval val;
+ struct power_supply *psy;
+ int i, err;
+
+ for (i = 0; desc->psy_charger_stat[i]; i++) {
+ psy = power_supply_get_by_name(desc->psy_charger_stat[i]);
+ if (!psy) {
+ dev_err(cm->dev, "Cannot find power supply \"%s\"\n",
+ desc->psy_charger_stat[i]);
+ continue;
+ }
+
+ val.intval = enable;
+ err = power_supply_set_property(psy, POWER_SUPPLY_PROP_STATUS,
+ &val);
+ power_supply_put(psy);
+ if (err)
+ return err;
+ }
+
+ return 0;
+}
+
/**
* try_charger_enable - Enable/Disable chargers altogether
* @cm: the Charger Manager representing the battery.
@@ -378,6 +404,10 @@ static int try_charger_enable(struct charger_manager *cm, bool enable)
cm->charging_start_time = ktime_to_ms(ktime_get());
cm->charging_end_time = 0;
+ err = try_charger_enable_by_psy(cm, enable);
+ if (!err)
+ goto out;
+
for (i = 0 ; i < desc->num_charger_regulators ; i++) {
if (desc->charger_regulators[i].externally_control)
continue;
@@ -396,6 +426,10 @@ static int try_charger_enable(struct charger_manager *cm, bool enable)
cm->charging_start_time = 0;
cm->charging_end_time = ktime_to_ms(ktime_get());
+ err = try_charger_enable_by_psy(cm, enable);
+ if (!err)
+ goto out;
+
for (i = 0 ; i < desc->num_charger_regulators ; i++) {
if (desc->charger_regulators[i].externally_control)
continue;
@@ -422,6 +456,7 @@ static int try_charger_enable(struct charger_manager *cm, bool enable)
}
}
+out:
if (!err)
cm->charger_enabled = enable;
For some chargers (such as Spreadtrum SC2731 charger), they don't use regulators to control charging, instead charging control was implemented in their drivers, so we can add some supports to start or stop charging by POWER_SUPPLY_PROP_STATUS property. Signed-off-by: Baolin Wang <baolin.wang@linaro.org> --- drivers/power/supply/charger-manager.c | 35 ++++++++++++++++++++++++++++++++ 1 file changed, 35 insertions(+) -- 1.7.9.5