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path: root/drivers/power/supply/cpcap-charger.c
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Diffstat (limited to 'drivers/power/supply/cpcap-charger.c')
-rw-r--r--drivers/power/supply/cpcap-charger.c39
1 files changed, 20 insertions, 19 deletions
diff --git a/drivers/power/supply/cpcap-charger.c b/drivers/power/supply/cpcap-charger.c
index df01abc49ce8..60e0ce105a29 100644
--- a/drivers/power/supply/cpcap-charger.c
+++ b/drivers/power/supply/cpcap-charger.c
@@ -173,23 +173,6 @@ static enum power_supply_property cpcap_charger_props[] = {
POWER_SUPPLY_PROP_CURRENT_NOW,
};
-/* No battery always shows temperature of -40000 */
-static bool cpcap_charger_battery_found(struct cpcap_charger_ddata *ddata)
-{
- struct iio_channel *channel;
- int error, temperature;
-
- channel = ddata->channels[CPCAP_CHARGER_IIO_BATTDET];
- error = iio_read_channel_processed(channel, &temperature);
- if (error < 0) {
- dev_warn(ddata->dev, "%s failed: %i\n", __func__, error);
-
- return false;
- }
-
- return temperature > -20000 && temperature < 60000;
-}
-
static int cpcap_charger_get_charge_voltage(struct cpcap_charger_ddata *ddata)
{
struct iio_channel *channel;
@@ -700,11 +683,29 @@ static void cpcap_usb_detect(struct work_struct *work)
if (!ddata->feeding_vbus && cpcap_charger_vbus_valid(ddata) &&
s.chrgcurr1) {
- int max_current = 532000;
+ int max_current;
int vchrg, ichrg;
+ union power_supply_propval val;
+ struct power_supply *battery;
- if (cpcap_charger_battery_found(ddata))
+ battery = power_supply_get_by_name("battery");
+ if (IS_ERR_OR_NULL(battery)) {
+ dev_err(ddata->dev, "battery power_supply not available %li\n",
+ PTR_ERR(battery));
+ return;
+ }
+
+ error = power_supply_get_property(battery, POWER_SUPPLY_PROP_PRESENT, &val);
+ power_supply_put(battery);
+ if (error)
+ goto out_err;
+
+ if (val.intval) {
max_current = 1596000;
+ } else {
+ dev_info(ddata->dev, "battery not inserted, charging disabled\n");
+ max_current = 0;
+ }
if (max_current > ddata->limit_current)
max_current = ddata->limit_current;